./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_41-trylock_racefree.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/config/GemCutterMemDerefMemtrack.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_41-trylock_racefree.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/config/svcomp-DerefFreeMemtrack-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer GemCutter --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash af00d5f4cc6a18cb9fd8a5151467217fe3ddb5ee0fa30b2cfbd9dd374105ee15 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-6b4ec56 [2022-11-20 16:14:46,753 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 16:14:46,756 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 16:14:46,807 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 16:14:46,809 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 16:14:46,813 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 16:14:46,816 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 16:14:46,820 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 16:14:46,823 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 16:14:46,830 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 16:14:46,832 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 16:14:46,834 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 16:14:46,835 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 16:14:46,838 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 16:14:46,841 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 16:14:46,844 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 16:14:46,846 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 16:14:46,848 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 16:14:46,850 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 16:14:46,858 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 16:14:46,860 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 16:14:46,863 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 16:14:46,865 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 16:14:46,866 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 16:14:46,878 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 16:14:46,880 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 16:14:46,881 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 16:14:46,882 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 16:14:46,884 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 16:14:46,885 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 16:14:46,886 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 16:14:46,887 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 16:14:46,889 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 16:14:46,890 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 16:14:46,893 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 16:14:46,894 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 16:14:46,895 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 16:14:46,895 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 16:14:46,895 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 16:14:46,896 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 16:14:46,897 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 16:14:46,898 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/config/svcomp-DerefFreeMemtrack-32bit-GemCutter_Default.epf [2022-11-20 16:14:46,977 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 16:14:46,977 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 16:14:46,978 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 16:14:46,979 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 16:14:46,980 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 16:14:46,980 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 16:14:46,981 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 16:14:46,981 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 16:14:46,982 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 16:14:46,982 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 16:14:46,984 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 16:14:46,984 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 16:14:46,984 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 16:14:46,984 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 16:14:46,985 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 16:14:46,985 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-20 16:14:46,985 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-20 16:14:46,986 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-20 16:14:46,986 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 16:14:46,986 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-20 16:14:46,986 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 16:14:46,987 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 16:14:46,987 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 16:14:46,987 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 16:14:46,987 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 16:14:46,988 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 16:14:46,988 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 16:14:46,988 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 16:14:46,989 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 16:14:46,990 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 16:14:46,990 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 16:14:46,990 INFO L138 SettingsManager]: * Abstraction used for commutativity in POR=VARIABLES_GLOBAL [2022-11-20 16:14:46,991 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-11-20 16:14:46,991 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2022-11-20 16:14:46,991 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2022-11-20 16:14:46,991 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> af00d5f4cc6a18cb9fd8a5151467217fe3ddb5ee0fa30b2cfbd9dd374105ee15 [2022-11-20 16:14:47,376 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 16:14:47,409 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 16:14:47,412 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 16:14:47,414 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 16:14:47,415 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 16:14:47,416 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/../../sv-benchmarks/c/goblint-regression/28-race_reach_41-trylock_racefree.i [2022-11-20 16:14:50,731 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 16:14:51,066 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 16:14:51,067 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/sv-benchmarks/c/goblint-regression/28-race_reach_41-trylock_racefree.i [2022-11-20 16:14:51,081 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/data/4c13e10b7/74ad428678dd45a694870a498fedff89/FLAGc891f9ac5 [2022-11-20 16:14:51,104 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/data/4c13e10b7/74ad428678dd45a694870a498fedff89 [2022-11-20 16:14:51,107 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 16:14:51,108 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 16:14:51,110 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 16:14:51,110 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 16:14:51,115 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 16:14:51,116 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 04:14:51" (1/1) ... [2022-11-20 16:14:51,118 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63e0af0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:14:51, skipping insertion in model container [2022-11-20 16:14:51,118 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 04:14:51" (1/1) ... [2022-11-20 16:14:51,128 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 16:14:51,204 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 16:14:51,553 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/sv-benchmarks/c/goblint-regression/28-race_reach_41-trylock_racefree.i[30176,30189] [2022-11-20 16:14:51,594 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 16:14:51,616 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 16:14:51,692 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/sv-benchmarks/c/goblint-regression/28-race_reach_41-trylock_racefree.i[30176,30189] [2022-11-20 16:14:51,701 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 16:14:51,769 INFO L208 MainTranslator]: Completed translation [2022-11-20 16:14:51,770 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:14:51 WrapperNode [2022-11-20 16:14:51,770 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 16:14:51,772 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 16:14:51,772 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 16:14:51,772 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 16:14:51,781 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:14:51" (1/1) ... [2022-11-20 16:14:51,813 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:14:51" (1/1) ... [2022-11-20 16:14:51,849 INFO L138 Inliner]: procedures = 171, calls = 30, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 77 [2022-11-20 16:14:51,849 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 16:14:51,850 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 16:14:51,850 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 16:14:51,850 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 16:14:51,862 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:14:51" (1/1) ... [2022-11-20 16:14:51,863 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:14:51" (1/1) ... [2022-11-20 16:14:51,881 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:14:51" (1/1) ... [2022-11-20 16:14:51,883 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:14:51" (1/1) ... [2022-11-20 16:14:51,889 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:14:51" (1/1) ... [2022-11-20 16:14:51,900 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:14:51" (1/1) ... [2022-11-20 16:14:51,907 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:14:51" (1/1) ... [2022-11-20 16:14:51,909 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:14:51" (1/1) ... [2022-11-20 16:14:51,917 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 16:14:51,918 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 16:14:51,919 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 16:14:51,919 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 16:14:51,920 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:14:51" (1/1) ... [2022-11-20 16:14:51,934 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 16:14:51,946 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 [2022-11-20 16:14:51,960 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 16:14:51,962 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 16:14:52,001 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-20 16:14:52,001 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 16:14:52,001 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-20 16:14:52,002 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 16:14:52,002 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 16:14:52,002 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-20 16:14:52,002 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-20 16:14:52,003 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 16:14:52,003 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexTryLock [2022-11-20 16:14:52,003 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 16:14:52,003 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 16:14:52,004 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 16:14:52,005 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-20 16:14:52,152 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 16:14:52,155 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 16:14:52,455 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 16:14:52,465 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 16:14:52,465 INFO L300 CfgBuilder]: Removed 11 assume(true) statements. [2022-11-20 16:14:52,468 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 04:14:52 BoogieIcfgContainer [2022-11-20 16:14:52,468 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 16:14:52,471 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 16:14:52,472 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 16:14:52,476 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 16:14:52,476 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 04:14:51" (1/3) ... [2022-11-20 16:14:52,477 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2aa47ebd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 04:14:52, skipping insertion in model container [2022-11-20 16:14:52,477 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:14:51" (2/3) ... [2022-11-20 16:14:52,478 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2aa47ebd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 04:14:52, skipping insertion in model container [2022-11-20 16:14:52,478 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 04:14:52" (3/3) ... [2022-11-20 16:14:52,480 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_41-trylock_racefree.i [2022-11-20 16:14:52,505 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 16:14:52,505 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-11-20 16:14:52,505 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-20 16:14:52,604 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-11-20 16:14:52,685 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 16:14:52,686 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-11-20 16:14:52,686 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 [2022-11-20 16:14:52,690 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-11-20 16:14:52,711 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2022-11-20 16:14:52,818 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-11-20 16:14:52,835 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2022-11-20 16:14:52,848 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@46174585, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 16:14:52,848 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-11-20 16:14:53,039 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:14:53,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:14:53,048 INFO L85 PathProgramCache]: Analyzing trace with hash -1808758546, now seen corresponding path program 1 times [2022-11-20 16:14:53,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:14:53,060 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876858821] [2022-11-20 16:14:53,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:14:53,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:14:53,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:14:53,298 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:14:53,299 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:14:53,299 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [876858821] [2022-11-20 16:14:53,300 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [876858821] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 16:14:53,300 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 16:14:53,301 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 16:14:53,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615732614] [2022-11-20 16:14:53,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 16:14:53,309 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-20 16:14:53,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:14:53,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-20 16:14:53,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-20 16:14:53,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:14:53,349 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:14:53,351 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:14:53,352 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:14:53,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:14:53,383 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 16:14:53,384 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:14:53,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:14:53,390 INFO L85 PathProgramCache]: Analyzing trace with hash 1505803875, now seen corresponding path program 1 times [2022-11-20 16:14:53,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:14:53,391 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1732474267] [2022-11-20 16:14:53,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:14:53,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:14:53,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:14:53,703 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:14:53,703 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:14:53,703 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1732474267] [2022-11-20 16:14:53,704 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1732474267] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 16:14:53,704 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 16:14:53,704 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 16:14:53,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [777110662] [2022-11-20 16:14:53,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 16:14:53,707 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 16:14:53,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:14:53,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 16:14:53,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 16:14:53,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:14:53,710 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:14:53,710 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:14:53,710 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:14:53,711 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:14:53,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:14:53,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:14:53,960 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 16:14:53,961 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:14:53,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:14:53,962 INFO L85 PathProgramCache]: Analyzing trace with hash 864694360, now seen corresponding path program 1 times [2022-11-20 16:14:53,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:14:53,963 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1852100439] [2022-11-20 16:14:53,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:14:53,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:14:54,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:14:54,181 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:14:54,181 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:14:54,182 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1852100439] [2022-11-20 16:14:54,182 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1852100439] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 16:14:54,182 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [691321876] [2022-11-20 16:14:54,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:14:54,183 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 16:14:54,183 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 [2022-11-20 16:14:54,220 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 16:14:54,223 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-20 16:14:54,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:14:54,364 INFO L263 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 16:14:54,371 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 16:14:54,431 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:14:54,432 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 16:14:54,502 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:14:54,502 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [691321876] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 16:14:54,503 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 16:14:54,503 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-11-20 16:14:54,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1931654154] [2022-11-20 16:14:54,504 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 16:14:54,505 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-20 16:14:54,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:14:54,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-20 16:14:54,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-20 16:14:54,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:14:54,534 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:14:54,534 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.4) internal successors, (74), 10 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:14:54,534 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:14:54,535 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:14:54,535 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:14:54,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:14:54,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:14:54,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:14:54,682 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-20 16:14:54,879 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 16:14:54,880 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:14:54,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:14:54,881 INFO L85 PathProgramCache]: Analyzing trace with hash -581772443, now seen corresponding path program 1 times [2022-11-20 16:14:54,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:14:54,881 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1613232386] [2022-11-20 16:14:54,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:14:54,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:14:54,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 16:14:54,907 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 16:14:54,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 16:14:54,949 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 16:14:54,949 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-20 16:14:54,951 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 7 remaining) [2022-11-20 16:14:54,953 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 7 remaining) [2022-11-20 16:14:54,954 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 7 remaining) [2022-11-20 16:14:54,954 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 7 remaining) [2022-11-20 16:14:54,954 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 7 remaining) [2022-11-20 16:14:54,955 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (1 of 7 remaining) [2022-11-20 16:14:54,955 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK (0 of 7 remaining) [2022-11-20 16:14:54,955 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-20 16:14:54,967 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-11-20 16:14:54,970 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-20 16:14:54,970 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2022-11-20 16:14:54,997 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-20 16:14:55,001 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 16:14:55,002 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-11-20 16:14:55,002 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 [2022-11-20 16:14:55,003 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-11-20 16:14:55,008 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (4)] Waiting until timeout for monitored process [2022-11-20 16:14:55,010 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-11-20 16:14:55,011 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2022-11-20 16:14:55,012 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@46174585, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 16:14:55,012 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-11-20 16:14:55,088 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:14:55,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:14:55,089 INFO L85 PathProgramCache]: Analyzing trace with hash -1209095826, now seen corresponding path program 1 times [2022-11-20 16:14:55,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:14:55,090 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1069959020] [2022-11-20 16:14:55,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:14:55,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:14:55,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:14:55,149 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:14:55,149 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:14:55,149 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1069959020] [2022-11-20 16:14:55,150 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1069959020] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 16:14:55,150 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 16:14:55,150 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 16:14:55,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [48086482] [2022-11-20 16:14:55,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 16:14:55,151 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-20 16:14:55,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:14:55,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-20 16:14:55,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-20 16:14:55,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:14:55,152 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:14:55,153 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:14:55,153 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:14:55,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:14:55,165 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-20 16:14:55,165 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:14:55,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:14:55,166 INFO L85 PathProgramCache]: Analyzing trace with hash -2038899581, now seen corresponding path program 1 times [2022-11-20 16:14:55,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:14:55,166 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [796635033] [2022-11-20 16:14:55,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:14:55,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:14:55,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:14:55,264 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:14:55,265 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:14:55,265 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [796635033] [2022-11-20 16:14:55,265 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [796635033] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 16:14:55,265 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 16:14:55,266 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 16:14:55,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1528679237] [2022-11-20 16:14:55,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 16:14:55,266 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 16:14:55,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:14:55,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 16:14:55,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 16:14:55,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:14:55,270 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:14:55,270 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:14:55,271 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:14:55,271 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:14:55,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:14:55,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:14:55,509 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-20 16:14:55,510 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:14:55,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:14:55,511 INFO L85 PathProgramCache]: Analyzing trace with hash -174365188, now seen corresponding path program 1 times [2022-11-20 16:14:55,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:14:55,511 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1083898916] [2022-11-20 16:14:55,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:14:55,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:14:55,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:14:55,686 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:14:55,687 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:14:55,687 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1083898916] [2022-11-20 16:14:55,687 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1083898916] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 16:14:55,687 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1825373762] [2022-11-20 16:14:55,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:14:55,688 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 16:14:55,688 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 [2022-11-20 16:14:55,695 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 16:14:55,733 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-20 16:14:55,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:14:55,859 INFO L263 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 16:14:55,864 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 16:14:55,922 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:14:55,922 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 16:14:55,991 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:14:55,998 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1825373762] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 16:14:55,998 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 16:14:55,998 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-11-20 16:14:55,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1010337100] [2022-11-20 16:14:55,999 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 16:14:56,003 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-20 16:14:56,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:14:56,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-20 16:14:56,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-20 16:14:56,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:14:56,007 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:14:56,008 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.4) internal successors, (74), 10 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:14:56,008 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:14:56,008 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:14:56,008 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:14:56,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:14:56,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:14:56,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:14:56,209 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-20 16:14:56,403 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 16:14:56,404 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:14:56,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:14:56,404 INFO L85 PathProgramCache]: Analyzing trace with hash -1521207182, now seen corresponding path program 1 times [2022-11-20 16:14:56,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:14:56,404 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [380045336] [2022-11-20 16:14:56,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:14:56,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:14:56,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 16:14:56,451 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 16:14:56,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 16:14:56,490 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 16:14:56,491 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-20 16:14:56,492 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 7 remaining) [2022-11-20 16:14:56,492 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 7 remaining) [2022-11-20 16:14:56,492 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 7 remaining) [2022-11-20 16:14:56,493 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 7 remaining) [2022-11-20 16:14:56,493 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 7 remaining) [2022-11-20 16:14:56,493 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (1 of 7 remaining) [2022-11-20 16:14:56,494 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK (0 of 7 remaining) [2022-11-20 16:14:56,494 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-20 16:14:56,503 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-11-20 16:14:56,503 WARN L233 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-20 16:14:56,504 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2022-11-20 16:14:56,556 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-11-20 16:14:56,566 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 16:14:56,566 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-11-20 16:14:56,567 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 [2022-11-20 16:14:56,571 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-11-20 16:14:56,583 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (6)] Waiting until timeout for monitored process [2022-11-20 16:14:56,583 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-11-20 16:14:56,584 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2022-11-20 16:14:56,585 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@46174585, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 16:14:56,585 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-11-20 16:14:56,637 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:14:56,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:14:56,638 INFO L85 PathProgramCache]: Analyzing trace with hash 1274112494, now seen corresponding path program 1 times [2022-11-20 16:14:56,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:14:56,639 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [339370284] [2022-11-20 16:14:56,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:14:56,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:14:56,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:14:56,691 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:14:56,691 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:14:56,692 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [339370284] [2022-11-20 16:14:56,692 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [339370284] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 16:14:56,692 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 16:14:56,693 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 16:14:56,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [512743692] [2022-11-20 16:14:56,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 16:14:56,694 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-20 16:14:56,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:14:56,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-20 16:14:56,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-20 16:14:56,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:14:56,706 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:14:56,706 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:14:56,707 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:14:56,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:14:56,711 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-20 16:14:56,711 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:14:56,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:14:56,712 INFO L85 PathProgramCache]: Analyzing trace with hash 617456291, now seen corresponding path program 1 times [2022-11-20 16:14:56,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:14:56,712 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1216586327] [2022-11-20 16:14:56,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:14:56,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:14:56,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:14:56,770 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:14:56,770 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:14:56,770 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1216586327] [2022-11-20 16:14:56,771 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1216586327] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 16:14:56,771 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 16:14:56,771 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 16:14:56,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680819504] [2022-11-20 16:14:56,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 16:14:56,772 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 16:14:56,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:14:56,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 16:14:56,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 16:14:56,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:14:56,776 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:14:56,776 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:14:56,777 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:14:56,777 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:14:56,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:14:56,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:14:56,978 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-20 16:14:56,978 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:14:56,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:14:56,979 INFO L85 PathProgramCache]: Analyzing trace with hash -1312592992, now seen corresponding path program 1 times [2022-11-20 16:14:56,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:14:56,979 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [818365797] [2022-11-20 16:14:56,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:14:56,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:14:56,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:14:57,092 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:14:57,092 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:14:57,092 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [818365797] [2022-11-20 16:14:57,093 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [818365797] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 16:14:57,093 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1974400341] [2022-11-20 16:14:57,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:14:57,094 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 16:14:57,094 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 [2022-11-20 16:14:57,098 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 16:14:57,116 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-20 16:14:57,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:14:57,228 INFO L263 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 16:14:57,231 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 16:14:57,268 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:14:57,268 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 16:14:57,325 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:14:57,325 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1974400341] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 16:14:57,326 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 16:14:57,326 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-11-20 16:14:57,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732264014] [2022-11-20 16:14:57,326 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 16:14:57,327 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-20 16:14:57,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:14:57,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-20 16:14:57,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-20 16:14:57,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:14:57,332 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:14:57,333 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.4) internal successors, (74), 10 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:14:57,333 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:14:57,333 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:14:57,333 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:14:57,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:14:57,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:14:57,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:14:57,552 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-20 16:14:57,746 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-11-20 16:14:57,746 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:14:57,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:14:57,747 INFO L85 PathProgramCache]: Analyzing trace with hash 260378743, now seen corresponding path program 1 times [2022-11-20 16:14:57,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:14:57,747 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1712466074] [2022-11-20 16:14:57,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:14:57,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:14:57,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:14:57,986 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-20 16:14:57,986 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:14:57,991 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1712466074] [2022-11-20 16:14:57,991 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1712466074] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 16:14:57,992 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 16:14:57,992 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 16:14:57,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1723940243] [2022-11-20 16:14:57,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 16:14:57,993 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 16:14:57,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:14:57,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 16:14:57,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 16:14:57,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:14:57,995 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:14:57,995 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:14:57,995 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:14:57,996 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:14:57,996 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:14:57,996 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:14:58,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:14:58,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:14:58,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:14:58,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 16:14:58,099 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-20 16:14:58,099 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:14:58,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:14:58,100 INFO L85 PathProgramCache]: Analyzing trace with hash 990109130, now seen corresponding path program 1 times [2022-11-20 16:14:58,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:14:58,101 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1234568856] [2022-11-20 16:14:58,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:14:58,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:14:58,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:14:58,174 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-20 16:14:58,175 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:14:58,175 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1234568856] [2022-11-20 16:14:58,175 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1234568856] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 16:14:58,176 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 16:14:58,176 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 16:14:58,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575973353] [2022-11-20 16:14:58,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 16:14:58,180 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 16:14:58,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:14:58,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 16:14:58,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 16:14:58,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:14:58,184 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:14:58,185 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:14:58,185 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:14:58,185 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:14:58,185 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:14:58,185 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-11-20 16:14:58,186 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:14:58,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:14:58,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:14:58,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:14:58,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:14:58,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:14:58,349 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-20 16:14:58,350 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:14:58,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:14:58,350 INFO L85 PathProgramCache]: Analyzing trace with hash -1034700433, now seen corresponding path program 1 times [2022-11-20 16:14:58,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:14:58,351 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1888376321] [2022-11-20 16:14:58,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:14:58,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:14:58,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:14:58,609 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-20 16:14:58,610 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:14:58,610 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1888376321] [2022-11-20 16:14:58,610 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1888376321] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 16:14:58,611 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1715547241] [2022-11-20 16:14:58,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:14:58,611 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 16:14:58,611 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 [2022-11-20 16:14:58,613 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 16:14:58,624 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-20 16:14:58,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:14:58,786 INFO L263 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-20 16:14:58,794 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 16:14:58,928 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-20 16:14:58,928 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 16:14:59,132 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-20 16:14:59,132 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1715547241] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 16:14:59,133 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 16:14:59,133 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 9, 9] total 19 [2022-11-20 16:14:59,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1685211488] [2022-11-20 16:14:59,133 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 16:14:59,134 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-20 16:14:59,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:14:59,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-20 16:14:59,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=263, Unknown=0, NotChecked=0, Total=342 [2022-11-20 16:14:59,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:14:59,139 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:14:59,140 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 10.578947368421053) internal successors, (201), 19 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:14:59,140 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:14:59,140 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:14:59,140 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:14:59,140 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:14:59,141 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:14:59,141 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:14:59,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:14:59,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:14:59,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:14:59,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:14:59,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:14:59,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-20 16:14:59,355 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-11-20 16:14:59,550 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-11-20 16:14:59,551 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:14:59,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:14:59,552 INFO L85 PathProgramCache]: Analyzing trace with hash -333324424, now seen corresponding path program 1 times [2022-11-20 16:14:59,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:14:59,552 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1872083772] [2022-11-20 16:14:59,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:14:59,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:14:59,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 16:14:59,574 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 16:14:59,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 16:14:59,597 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 16:14:59,597 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-20 16:14:59,597 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 7 remaining) [2022-11-20 16:14:59,598 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 7 remaining) [2022-11-20 16:14:59,598 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 7 remaining) [2022-11-20 16:14:59,598 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 7 remaining) [2022-11-20 16:14:59,598 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 7 remaining) [2022-11-20 16:14:59,599 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (1 of 7 remaining) [2022-11-20 16:14:59,599 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK (0 of 7 remaining) [2022-11-20 16:14:59,599 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-20 16:14:59,605 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2022-11-20 16:14:59,606 WARN L233 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-20 16:14:59,606 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2022-11-20 16:14:59,633 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-11-20 16:14:59,637 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 16:14:59,637 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-11-20 16:14:59,637 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 [2022-11-20 16:14:59,639 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-11-20 16:14:59,645 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-11-20 16:14:59,646 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2022-11-20 16:14:59,646 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@46174585, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 16:14:59,646 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-11-20 16:14:59,671 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (9)] Waiting until timeout for monitored process [2022-11-20 16:14:59,701 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:14:59,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:14:59,701 INFO L85 PathProgramCache]: Analyzing trace with hash 1150383086, now seen corresponding path program 1 times [2022-11-20 16:14:59,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:14:59,701 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1707886249] [2022-11-20 16:14:59,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:14:59,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:14:59,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:14:59,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:14:59,722 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:14:59,722 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1707886249] [2022-11-20 16:14:59,727 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1707886249] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 16:14:59,727 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 16:14:59,727 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 16:14:59,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1151872765] [2022-11-20 16:14:59,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 16:14:59,728 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-20 16:14:59,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:14:59,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-20 16:14:59,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-20 16:14:59,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:14:59,730 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:14:59,730 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:14:59,730 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:14:59,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:14:59,732 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-20 16:14:59,733 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:14:59,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:14:59,733 INFO L85 PathProgramCache]: Analyzing trace with hash 1972591907, now seen corresponding path program 1 times [2022-11-20 16:14:59,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:14:59,734 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [272091837] [2022-11-20 16:14:59,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:14:59,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:14:59,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:14:59,779 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:14:59,780 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:14:59,780 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [272091837] [2022-11-20 16:14:59,780 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [272091837] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 16:14:59,781 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 16:14:59,781 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 16:14:59,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [124211560] [2022-11-20 16:14:59,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 16:14:59,782 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 16:14:59,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:14:59,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 16:14:59,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 16:14:59,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:14:59,783 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:14:59,783 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:14:59,784 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:14:59,784 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:14:59,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:14:59,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:14:59,951 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-20 16:14:59,951 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:14:59,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:14:59,952 INFO L85 PathProgramCache]: Analyzing trace with hash -303926268, now seen corresponding path program 1 times [2022-11-20 16:14:59,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:14:59,952 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1247980330] [2022-11-20 16:14:59,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:14:59,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:14:59,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:15:00,043 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:15:00,044 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:15:00,044 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1247980330] [2022-11-20 16:15:00,044 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1247980330] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 16:15:00,045 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [765915463] [2022-11-20 16:15:00,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:15:00,045 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 16:15:00,045 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 [2022-11-20 16:15:00,050 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 16:15:00,071 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-11-20 16:15:00,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:15:00,176 INFO L263 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 16:15:00,187 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 16:15:00,220 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:15:00,220 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 16:15:00,263 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:15:00,263 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [765915463] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 16:15:00,264 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 16:15:00,264 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-11-20 16:15:00,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1303083460] [2022-11-20 16:15:00,264 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 16:15:00,265 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-20 16:15:00,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:15:00,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-20 16:15:00,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-20 16:15:00,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:00,267 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:15:00,267 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.4) internal successors, (74), 10 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:15:00,267 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:00,267 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:15:00,267 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:00,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:00,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:15:00,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:15:00,415 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-11-20 16:15:00,615 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-11-20 16:15:00,615 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:15:00,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:15:00,616 INFO L85 PathProgramCache]: Analyzing trace with hash 1822115, now seen corresponding path program 1 times [2022-11-20 16:15:00,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:15:00,616 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1467504195] [2022-11-20 16:15:00,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:15:00,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:15:00,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:15:00,754 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-20 16:15:00,754 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:15:00,755 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1467504195] [2022-11-20 16:15:00,755 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1467504195] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 16:15:00,755 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 16:15:00,755 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 16:15:00,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1130310095] [2022-11-20 16:15:00,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 16:15:00,756 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 16:15:00,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:15:00,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 16:15:00,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 16:15:00,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:00,758 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:15:00,758 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:15:00,758 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:00,758 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:15:00,758 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:15:00,759 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:00,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:00,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:15:00,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:15:00,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 16:15:00,858 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-20 16:15:00,859 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:15:00,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:15:00,859 INFO L85 PathProgramCache]: Analyzing trace with hash -898797150, now seen corresponding path program 1 times [2022-11-20 16:15:00,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:15:00,860 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1903524626] [2022-11-20 16:15:00,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:15:00,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:15:00,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:15:00,936 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-20 16:15:00,937 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:15:00,937 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1903524626] [2022-11-20 16:15:00,937 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1903524626] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 16:15:00,937 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 16:15:00,938 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 16:15:00,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210799370] [2022-11-20 16:15:00,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 16:15:00,939 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 16:15:00,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:15:00,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 16:15:00,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 16:15:00,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:00,942 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:15:00,942 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:15:00,942 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:00,942 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:15:00,942 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:15:00,943 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-11-20 16:15:00,943 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:01,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:01,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:15:01,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:15:01,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:15:01,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:15:01,143 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-20 16:15:01,143 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:15:01,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:15:01,145 INFO L85 PathProgramCache]: Analyzing trace with hash 757933598, now seen corresponding path program 1 times [2022-11-20 16:15:01,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:15:01,145 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1980366222] [2022-11-20 16:15:01,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:15:01,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:15:01,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:15:01,313 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-20 16:15:01,313 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:15:01,313 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1980366222] [2022-11-20 16:15:01,313 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1980366222] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 16:15:01,313 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [642037427] [2022-11-20 16:15:01,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:15:01,314 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 16:15:01,314 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 [2022-11-20 16:15:01,315 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 16:15:01,342 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-11-20 16:15:01,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:15:01,481 INFO L263 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-20 16:15:01,484 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 16:15:01,625 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-20 16:15:01,625 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 16:15:01,801 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-20 16:15:01,801 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [642037427] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 16:15:01,801 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 16:15:01,801 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 9, 9] total 19 [2022-11-20 16:15:01,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1978176130] [2022-11-20 16:15:01,802 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 16:15:01,802 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-20 16:15:01,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:15:01,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-20 16:15:01,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=263, Unknown=0, NotChecked=0, Total=342 [2022-11-20 16:15:01,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:01,804 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:15:01,804 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 10.578947368421053) internal successors, (201), 19 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:15:01,804 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:01,804 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:15:01,804 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:15:01,804 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:15:01,804 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:15:01,805 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:02,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:02,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:15:02,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:15:02,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:15:02,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:15:02,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-20 16:15:02,073 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-11-20 16:15:02,263 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 16:15:02,263 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:15:02,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:15:02,264 INFO L85 PathProgramCache]: Analyzing trace with hash 1976388590, now seen corresponding path program 1 times [2022-11-20 16:15:02,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:15:02,265 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [529946939] [2022-11-20 16:15:02,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:15:02,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:15:02,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 16:15:02,298 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 16:15:02,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 16:15:02,338 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 16:15:02,340 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-20 16:15:02,340 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 7 remaining) [2022-11-20 16:15:02,340 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 7 remaining) [2022-11-20 16:15:02,341 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 7 remaining) [2022-11-20 16:15:02,341 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 7 remaining) [2022-11-20 16:15:02,341 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 7 remaining) [2022-11-20 16:15:02,341 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (1 of 7 remaining) [2022-11-20 16:15:02,342 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK (0 of 7 remaining) [2022-11-20 16:15:02,342 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-11-20 16:15:02,351 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2022-11-20 16:15:02,352 WARN L233 ceAbstractionStarter]: 4 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-20 16:15:02,352 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 5 thread instances. [2022-11-20 16:15:02,389 INFO L144 ThreadInstanceAdder]: Constructed 5 joinOtherThreadTransitions. [2022-11-20 16:15:02,395 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 16:15:02,395 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-11-20 16:15:02,397 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 [2022-11-20 16:15:02,398 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-11-20 16:15:02,412 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-11-20 16:15:02,412 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2022-11-20 16:15:02,413 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@46174585, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 16:15:02,413 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-11-20 16:15:02,433 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (12)] Waiting until timeout for monitored process [2022-11-20 16:15:02,456 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:15:02,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:15:02,457 INFO L85 PathProgramCache]: Analyzing trace with hash -1384768018, now seen corresponding path program 1 times [2022-11-20 16:15:02,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:15:02,457 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2051389130] [2022-11-20 16:15:02,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:15:02,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:15:02,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:15:02,474 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:15:02,474 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:15:02,474 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2051389130] [2022-11-20 16:15:02,474 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2051389130] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 16:15:02,475 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 16:15:02,475 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 16:15:02,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2079707264] [2022-11-20 16:15:02,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 16:15:02,475 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-20 16:15:02,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:15:02,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-20 16:15:02,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-20 16:15:02,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:02,477 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:15:02,477 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:15:02,478 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:02,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:02,480 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-11-20 16:15:02,480 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:15:02,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:15:02,481 INFO L85 PathProgramCache]: Analyzing trace with hash 938852259, now seen corresponding path program 1 times [2022-11-20 16:15:02,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:15:02,481 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2063139473] [2022-11-20 16:15:02,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:15:02,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:15:02,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:15:02,546 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:15:02,547 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:15:02,547 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2063139473] [2022-11-20 16:15:02,547 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2063139473] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 16:15:02,547 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 16:15:02,548 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 16:15:02,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1302516813] [2022-11-20 16:15:02,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 16:15:02,549 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 16:15:02,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:15:02,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 16:15:02,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 16:15:02,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:02,551 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:15:02,552 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:15:02,552 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:02,552 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:02,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:02,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:15:02,692 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-11-20 16:15:02,693 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:15:02,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:15:02,694 INFO L85 PathProgramCache]: Analyzing trace with hash 605572200, now seen corresponding path program 1 times [2022-11-20 16:15:02,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:15:02,695 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [412529596] [2022-11-20 16:15:02,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:15:02,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:15:02,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:15:02,763 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:15:02,763 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:15:02,763 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [412529596] [2022-11-20 16:15:02,763 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [412529596] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 16:15:02,764 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1299459186] [2022-11-20 16:15:02,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:15:02,764 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 16:15:02,764 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 [2022-11-20 16:15:02,768 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 16:15:02,799 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-11-20 16:15:02,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:15:02,902 INFO L263 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 16:15:02,904 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 16:15:02,936 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:15:02,937 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 16:15:02,989 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:15:02,989 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1299459186] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 16:15:02,990 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 16:15:02,990 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-11-20 16:15:02,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [990462631] [2022-11-20 16:15:02,990 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 16:15:02,991 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-20 16:15:02,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:15:02,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-20 16:15:02,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-20 16:15:02,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:02,993 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:15:02,993 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.4) internal successors, (74), 10 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:15:02,993 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:02,993 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:15:02,993 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:03,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:03,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:15:03,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:15:03,158 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-11-20 16:15:03,352 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 16:15:03,352 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:15:03,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:15:03,353 INFO L85 PathProgramCache]: Analyzing trace with hash -863524145, now seen corresponding path program 1 times [2022-11-20 16:15:03,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:15:03,353 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [248689208] [2022-11-20 16:15:03,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:15:03,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:15:03,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:15:03,481 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-20 16:15:03,482 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:15:03,482 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [248689208] [2022-11-20 16:15:03,482 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [248689208] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 16:15:03,482 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 16:15:03,483 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 16:15:03,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [689579669] [2022-11-20 16:15:03,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 16:15:03,483 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 16:15:03,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:15:03,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 16:15:03,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 16:15:03,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:03,485 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:15:03,485 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:15:03,486 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:03,486 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:15:03,486 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:15:03,486 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:03,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:03,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:15:03,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:15:03,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 16:15:03,574 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-11-20 16:15:03,574 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:15:03,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:15:03,575 INFO L85 PathProgramCache]: Analyzing trace with hash -543832646, now seen corresponding path program 1 times [2022-11-20 16:15:03,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:15:03,575 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [852484822] [2022-11-20 16:15:03,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:15:03,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:15:03,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:15:03,643 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-20 16:15:03,643 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:15:03,644 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [852484822] [2022-11-20 16:15:03,644 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [852484822] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 16:15:03,644 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 16:15:03,644 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 16:15:03,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1298881991] [2022-11-20 16:15:03,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 16:15:03,645 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 16:15:03,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:15:03,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 16:15:03,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 16:15:03,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:03,647 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:15:03,648 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:15:03,648 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:03,648 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:15:03,648 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:15:03,648 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-11-20 16:15:03,648 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:03,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:03,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:15:03,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:15:03,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:15:03,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:15:03,838 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-11-20 16:15:03,839 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:15:03,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:15:03,839 INFO L85 PathProgramCache]: Analyzing trace with hash -1348043315, now seen corresponding path program 1 times [2022-11-20 16:15:03,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:15:03,840 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [739895178] [2022-11-20 16:15:03,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:15:03,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:15:03,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:15:03,975 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-20 16:15:03,975 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:15:03,975 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [739895178] [2022-11-20 16:15:03,976 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [739895178] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 16:15:03,976 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [207634093] [2022-11-20 16:15:03,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:15:03,976 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 16:15:03,977 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 [2022-11-20 16:15:03,978 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 16:15:04,011 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-11-20 16:15:04,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:15:04,169 INFO L263 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-20 16:15:04,172 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 16:15:04,303 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-20 16:15:04,304 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 16:15:04,473 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-20 16:15:04,473 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [207634093] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 16:15:04,473 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 16:15:04,474 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 9, 9] total 19 [2022-11-20 16:15:04,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1656386427] [2022-11-20 16:15:04,474 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 16:15:04,474 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-20 16:15:04,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:15:04,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-20 16:15:04,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=263, Unknown=0, NotChecked=0, Total=342 [2022-11-20 16:15:04,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:04,476 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:15:04,477 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 10.578947368421053) internal successors, (201), 19 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:15:04,477 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:04,477 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:15:04,477 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:15:04,477 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:15:04,477 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:15:04,477 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:04,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:04,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:15:04,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:15:04,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:15:04,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:15:04,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-20 16:15:04,807 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-11-20 16:15:04,999 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2022-11-20 16:15:04,999 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:15:04,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:15:04,999 INFO L85 PathProgramCache]: Analyzing trace with hash -957468387, now seen corresponding path program 1 times [2022-11-20 16:15:05,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:15:05,000 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [477750995] [2022-11-20 16:15:05,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:15:05,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:15:05,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 16:15:05,032 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 16:15:05,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 16:15:05,078 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 16:15:05,083 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-20 16:15:05,083 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 7 remaining) [2022-11-20 16:15:05,083 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 7 remaining) [2022-11-20 16:15:05,084 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 7 remaining) [2022-11-20 16:15:05,084 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 7 remaining) [2022-11-20 16:15:05,084 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 7 remaining) [2022-11-20 16:15:05,084 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (1 of 7 remaining) [2022-11-20 16:15:05,084 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK (0 of 7 remaining) [2022-11-20 16:15:05,085 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-11-20 16:15:05,090 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2022-11-20 16:15:05,090 WARN L233 ceAbstractionStarter]: 5 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-20 16:15:05,090 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 6 thread instances. [2022-11-20 16:15:05,136 INFO L144 ThreadInstanceAdder]: Constructed 6 joinOtherThreadTransitions. [2022-11-20 16:15:05,139 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 16:15:05,140 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-11-20 16:15:05,140 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 [2022-11-20 16:15:05,141 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-11-20 16:15:05,158 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-11-20 16:15:05,158 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2022-11-20 16:15:05,159 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@46174585, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 16:15:05,159 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-11-20 16:15:05,183 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (15)] Waiting until timeout for monitored process [2022-11-20 16:15:05,221 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:15:05,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:15:05,221 INFO L85 PathProgramCache]: Analyzing trace with hash -2036373522, now seen corresponding path program 1 times [2022-11-20 16:15:05,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:15:05,222 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1982416493] [2022-11-20 16:15:05,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:15:05,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:15:05,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:15:05,241 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:15:05,241 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:15:05,242 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1982416493] [2022-11-20 16:15:05,242 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1982416493] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 16:15:05,242 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 16:15:05,242 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 16:15:05,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194413849] [2022-11-20 16:15:05,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 16:15:05,243 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-20 16:15:05,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:15:05,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-20 16:15:05,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-20 16:15:05,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:05,245 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:15:05,283 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:15:05,283 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:05,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:05,285 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-11-20 16:15:05,286 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:15:05,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:15:05,286 INFO L85 PathProgramCache]: Analyzing trace with hash 1811204643, now seen corresponding path program 1 times [2022-11-20 16:15:05,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:15:05,286 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [818837655] [2022-11-20 16:15:05,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:15:05,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:15:05,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:15:05,326 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:15:05,326 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:15:05,326 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [818837655] [2022-11-20 16:15:05,327 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [818837655] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 16:15:05,327 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 16:15:05,327 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 16:15:05,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [883603479] [2022-11-20 16:15:05,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 16:15:05,328 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 16:15:05,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:15:05,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 16:15:05,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 16:15:05,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:05,329 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:15:05,329 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:15:05,330 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:05,330 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:05,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:05,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:15:05,484 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-11-20 16:15:05,485 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:15:05,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:15:05,485 INFO L85 PathProgramCache]: Analyzing trace with hash 1415902412, now seen corresponding path program 1 times [2022-11-20 16:15:05,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:15:05,486 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [858068816] [2022-11-20 16:15:05,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:15:05,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:15:05,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:15:05,558 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:15:05,558 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:15:05,558 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [858068816] [2022-11-20 16:15:05,559 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [858068816] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 16:15:05,559 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1865542354] [2022-11-20 16:15:05,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:15:05,559 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 16:15:05,559 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 [2022-11-20 16:15:05,567 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 16:15:05,575 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-11-20 16:15:05,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:15:05,725 INFO L263 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 16:15:05,726 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 16:15:05,760 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:15:05,760 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 16:15:05,810 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:15:05,810 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1865542354] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 16:15:05,810 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 16:15:05,810 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-11-20 16:15:05,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1887226348] [2022-11-20 16:15:05,811 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 16:15:05,811 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-20 16:15:05,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:15:05,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-20 16:15:05,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-20 16:15:05,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:05,813 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:15:05,814 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.4) internal successors, (74), 10 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:15:05,814 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:05,814 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:15:05,814 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:05,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:05,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:15:05,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:15:05,976 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2022-11-20 16:15:06,170 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable31 [2022-11-20 16:15:06,170 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:15:06,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:15:06,170 INFO L85 PathProgramCache]: Analyzing trace with hash 1959307259, now seen corresponding path program 1 times [2022-11-20 16:15:06,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:15:06,171 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1110763617] [2022-11-20 16:15:06,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:15:06,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:15:06,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:15:06,311 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-20 16:15:06,311 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:15:06,312 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1110763617] [2022-11-20 16:15:06,312 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1110763617] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 16:15:06,312 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 16:15:06,312 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 16:15:06,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [532980263] [2022-11-20 16:15:06,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 16:15:06,313 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 16:15:06,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:15:06,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 16:15:06,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 16:15:06,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:06,315 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:15:06,315 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:15:06,315 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:06,316 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:15:06,316 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:15:06,316 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:06,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:06,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:15:06,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:15:06,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 16:15:06,411 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-11-20 16:15:06,412 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:15:06,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:15:06,412 INFO L85 PathProgramCache]: Analyzing trace with hash 2055002642, now seen corresponding path program 1 times [2022-11-20 16:15:06,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:15:06,413 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1612462301] [2022-11-20 16:15:06,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:15:06,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:15:06,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:15:06,535 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-20 16:15:06,536 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:15:06,536 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1612462301] [2022-11-20 16:15:06,536 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1612462301] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 16:15:06,536 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 16:15:06,537 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 16:15:06,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [793410267] [2022-11-20 16:15:06,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 16:15:06,539 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 16:15:06,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:15:06,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 16:15:06,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 16:15:06,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:06,541 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:15:06,541 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:15:06,542 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:06,542 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:15:06,542 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:15:06,542 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-11-20 16:15:06,543 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:06,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:06,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:15:06,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:15:06,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:15:06,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:15:06,743 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-11-20 16:15:06,743 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:15:06,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:15:06,744 INFO L85 PathProgramCache]: Analyzing trace with hash -1414289668, now seen corresponding path program 1 times [2022-11-20 16:15:06,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:15:06,744 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [501005408] [2022-11-20 16:15:06,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:15:06,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:15:06,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:15:06,936 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-20 16:15:06,937 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:15:06,937 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [501005408] [2022-11-20 16:15:06,937 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [501005408] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 16:15:06,937 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1562816613] [2022-11-20 16:15:06,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:15:06,938 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 16:15:06,938 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 [2022-11-20 16:15:06,939 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 16:15:06,946 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-11-20 16:15:07,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:15:07,148 INFO L263 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-20 16:15:07,150 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 16:15:07,281 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-20 16:15:07,281 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 16:15:07,446 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-20 16:15:07,446 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1562816613] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 16:15:07,446 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 16:15:07,446 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 9, 9] total 19 [2022-11-20 16:15:07,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [98801527] [2022-11-20 16:15:07,447 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 16:15:07,447 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-20 16:15:07,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:15:07,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-20 16:15:07,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=263, Unknown=0, NotChecked=0, Total=342 [2022-11-20 16:15:07,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:07,450 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:15:07,451 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 10.578947368421053) internal successors, (201), 19 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:15:07,452 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:07,452 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:15:07,452 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:15:07,453 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:15:07,453 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:15:07,453 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:07,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:07,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:15:07,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:15:07,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:15:07,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:15:07,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-20 16:15:07,872 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2022-11-20 16:15:08,064 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 16:15:08,065 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:15:08,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:15:08,065 INFO L85 PathProgramCache]: Analyzing trace with hash -1892613947, now seen corresponding path program 1 times [2022-11-20 16:15:08,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:15:08,065 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [231017788] [2022-11-20 16:15:08,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:15:08,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:15:08,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 16:15:08,092 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 16:15:08,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 16:15:08,128 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 16:15:08,128 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-20 16:15:08,128 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 7 remaining) [2022-11-20 16:15:08,129 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 7 remaining) [2022-11-20 16:15:08,129 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 7 remaining) [2022-11-20 16:15:08,129 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 7 remaining) [2022-11-20 16:15:08,130 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 7 remaining) [2022-11-20 16:15:08,130 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (1 of 7 remaining) [2022-11-20 16:15:08,132 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK (0 of 7 remaining) [2022-11-20 16:15:08,132 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-11-20 16:15:08,137 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2022-11-20 16:15:08,140 WARN L233 ceAbstractionStarter]: 6 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-20 16:15:08,140 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 7 thread instances. [2022-11-20 16:15:08,180 INFO L144 ThreadInstanceAdder]: Constructed 7 joinOtherThreadTransitions. [2022-11-20 16:15:08,183 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 16:15:08,184 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-11-20 16:15:08,184 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 [2022-11-20 16:15:08,185 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-11-20 16:15:08,191 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-11-20 16:15:08,191 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2022-11-20 16:15:08,192 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@46174585, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 16:15:08,192 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-11-20 16:15:08,209 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (18)] Waiting until timeout for monitored process [2022-11-20 16:15:08,235 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:15:08,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:15:08,235 INFO L85 PathProgramCache]: Analyzing trace with hash -804433426, now seen corresponding path program 1 times [2022-11-20 16:15:08,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:15:08,235 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2138446601] [2022-11-20 16:15:08,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:15:08,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:15:08,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:15:08,254 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:15:08,254 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:15:08,254 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2138446601] [2022-11-20 16:15:08,255 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2138446601] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 16:15:08,255 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 16:15:08,287 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 16:15:08,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66368591] [2022-11-20 16:15:08,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 16:15:08,288 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-20 16:15:08,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:15:08,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-20 16:15:08,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-20 16:15:08,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:08,289 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:15:08,289 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:15:08,289 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:08,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:08,292 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-11-20 16:15:08,292 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:15:08,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:15:08,293 INFO L85 PathProgramCache]: Analyzing trace with hash 294681763, now seen corresponding path program 1 times [2022-11-20 16:15:08,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:15:08,293 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2036323687] [2022-11-20 16:15:08,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:15:08,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:15:08,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:15:08,327 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:15:08,327 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:15:08,328 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2036323687] [2022-11-20 16:15:08,328 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2036323687] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 16:15:08,328 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 16:15:08,328 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 16:15:08,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1206224431] [2022-11-20 16:15:08,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 16:15:08,329 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 16:15:08,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:15:08,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 16:15:08,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 16:15:08,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:08,331 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:15:08,331 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:15:08,331 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:08,331 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:08,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:08,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:15:08,483 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-11-20 16:15:08,484 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:15:08,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:15:08,484 INFO L85 PathProgramCache]: Analyzing trace with hash 2127064368, now seen corresponding path program 1 times [2022-11-20 16:15:08,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:15:08,485 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [875739163] [2022-11-20 16:15:08,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:15:08,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:15:08,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:15:08,549 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:15:08,549 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:15:08,549 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [875739163] [2022-11-20 16:15:08,549 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [875739163] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 16:15:08,550 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [412116015] [2022-11-20 16:15:08,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:15:08,550 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 16:15:08,550 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 [2022-11-20 16:15:08,554 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 16:15:08,571 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2022-11-20 16:15:08,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:15:08,743 INFO L263 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 16:15:08,744 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 16:15:08,777 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:15:08,777 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 16:15:08,823 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:15:08,823 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [412116015] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 16:15:08,824 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 16:15:08,824 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-11-20 16:15:08,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1556253616] [2022-11-20 16:15:08,824 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 16:15:08,825 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-20 16:15:08,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:15:08,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-20 16:15:08,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-20 16:15:08,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:08,826 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:15:08,826 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.4) internal successors, (74), 10 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:15:08,827 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:08,827 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:15:08,827 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:08,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:08,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:15:08,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:15:08,989 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2022-11-20 16:15:09,189 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2022-11-20 16:15:09,189 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:15:09,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:15:09,189 INFO L85 PathProgramCache]: Analyzing trace with hash -119618265, now seen corresponding path program 1 times [2022-11-20 16:15:09,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:15:09,190 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1867103344] [2022-11-20 16:15:09,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:15:09,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:15:09,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:15:09,310 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-20 16:15:09,311 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:15:09,311 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1867103344] [2022-11-20 16:15:09,311 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1867103344] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 16:15:09,311 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 16:15:09,312 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 16:15:09,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2132205251] [2022-11-20 16:15:09,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 16:15:09,312 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 16:15:09,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:15:09,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 16:15:09,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 16:15:09,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:09,314 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:15:09,314 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:15:09,315 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:09,315 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:15:09,315 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:15:09,315 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:09,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:09,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:15:09,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:15:09,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 16:15:09,415 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-11-20 16:15:09,416 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:15:09,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:15:09,416 INFO L85 PathProgramCache]: Analyzing trace with hash -1692225878, now seen corresponding path program 1 times [2022-11-20 16:15:09,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:15:09,418 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [90910572] [2022-11-20 16:15:09,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:15:09,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:15:09,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:15:09,481 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-20 16:15:09,481 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:15:09,481 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [90910572] [2022-11-20 16:15:09,481 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [90910572] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 16:15:09,482 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 16:15:09,482 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 16:15:09,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106362760] [2022-11-20 16:15:09,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 16:15:09,482 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 16:15:09,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:15:09,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 16:15:09,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 16:15:09,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:09,484 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:15:09,484 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:15:09,485 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:09,485 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:15:09,485 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:15:09,485 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-11-20 16:15:09,485 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:09,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:09,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:15:09,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:15:09,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:15:09,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:15:09,692 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-11-20 16:15:09,693 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:15:09,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:15:09,693 INFO L85 PathProgramCache]: Analyzing trace with hash 1829505195, now seen corresponding path program 1 times [2022-11-20 16:15:09,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:15:09,694 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1299792468] [2022-11-20 16:15:09,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:15:09,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:15:09,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:15:09,812 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-20 16:15:09,813 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:15:09,813 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1299792468] [2022-11-20 16:15:09,813 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1299792468] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 16:15:09,813 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1451803293] [2022-11-20 16:15:09,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:15:09,814 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 16:15:09,814 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 [2022-11-20 16:15:09,815 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 16:15:09,838 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2022-11-20 16:15:10,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:15:10,033 INFO L263 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-20 16:15:10,036 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 16:15:10,150 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-20 16:15:10,151 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 16:15:10,311 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-20 16:15:10,311 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1451803293] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 16:15:10,311 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 16:15:10,311 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 9, 9] total 19 [2022-11-20 16:15:10,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722509758] [2022-11-20 16:15:10,312 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 16:15:10,312 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-20 16:15:10,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:15:10,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-20 16:15:10,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=263, Unknown=0, NotChecked=0, Total=342 [2022-11-20 16:15:10,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:10,314 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:15:10,314 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 10.578947368421053) internal successors, (201), 19 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:15:10,314 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:10,314 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:15:10,314 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:15:10,315 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:15:10,315 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:15:10,315 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:10,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:10,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:15:10,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:15:10,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:15:10,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:15:10,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-20 16:15:11,003 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2022-11-20 16:15:11,197 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 16:15:11,197 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:15:11,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:15:11,198 INFO L85 PathProgramCache]: Analyzing trace with hash 805177031, now seen corresponding path program 1 times [2022-11-20 16:15:11,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:15:11,198 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [149429660] [2022-11-20 16:15:11,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:15:11,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:15:11,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:15:11,794 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 217 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-20 16:15:11,794 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:15:11,794 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [149429660] [2022-11-20 16:15:11,794 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [149429660] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 16:15:11,795 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [960496389] [2022-11-20 16:15:11,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:15:11,795 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 16:15:11,795 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 [2022-11-20 16:15:11,796 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 16:15:11,804 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2022-11-20 16:15:12,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:15:12,057 INFO L263 TraceCheckSpWp]: Trace formula consists of 460 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-20 16:15:12,061 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 16:15:12,227 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 217 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-20 16:15:12,227 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 16:15:12,692 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 217 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-20 16:15:12,692 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [960496389] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 16:15:12,692 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 16:15:12,693 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 34 [2022-11-20 16:15:12,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1394815579] [2022-11-20 16:15:12,693 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 16:15:12,694 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-11-20 16:15:12,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:15:12,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-11-20 16:15:12,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2022-11-20 16:15:12,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:12,696 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:15:12,697 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 7.5) internal successors, (255), 34 states have internal predecessors, (255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:15:12,697 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:12,697 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:15:12,697 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:15:12,697 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:15:12,697 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:15:12,697 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-11-20 16:15:12,698 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:13,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:13,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:15:13,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:15:13,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:15:13,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:15:13,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-20 16:15:13,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-20 16:15:13,155 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2022-11-20 16:15:13,351 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 16:15:13,351 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:15:13,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:15:13,351 INFO L85 PathProgramCache]: Analyzing trace with hash -259998554, now seen corresponding path program 1 times [2022-11-20 16:15:13,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:15:13,352 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [426237268] [2022-11-20 16:15:13,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:15:13,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:15:13,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 16:15:13,392 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 16:15:13,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 16:15:13,438 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 16:15:13,438 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-20 16:15:13,439 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 7 remaining) [2022-11-20 16:15:13,439 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 7 remaining) [2022-11-20 16:15:13,439 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 7 remaining) [2022-11-20 16:15:13,440 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 7 remaining) [2022-11-20 16:15:13,440 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 7 remaining) [2022-11-20 16:15:13,440 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (1 of 7 remaining) [2022-11-20 16:15:13,440 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK (0 of 7 remaining) [2022-11-20 16:15:13,441 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-11-20 16:15:13,448 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 16:15:13,450 WARN L233 ceAbstractionStarter]: 7 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-20 16:15:13,450 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 8 thread instances. [2022-11-20 16:15:13,493 INFO L144 ThreadInstanceAdder]: Constructed 8 joinOtherThreadTransitions. [2022-11-20 16:15:13,497 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 16:15:13,498 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-11-20 16:15:13,498 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 [2022-11-20 16:15:13,499 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-11-20 16:15:13,504 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (22)] Waiting until timeout for monitored process [2022-11-20 16:15:13,505 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-11-20 16:15:13,506 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2022-11-20 16:15:13,507 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@46174585, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 16:15:13,507 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-11-20 16:15:13,603 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:15:13,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:15:13,603 INFO L85 PathProgramCache]: Analyzing trace with hash -1983915026, now seen corresponding path program 1 times [2022-11-20 16:15:13,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:15:13,603 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1321724046] [2022-11-20 16:15:13,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:15:13,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:15:13,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:15:13,638 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:15:13,638 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:15:13,639 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1321724046] [2022-11-20 16:15:13,639 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1321724046] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 16:15:13,639 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 16:15:13,639 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 16:15:13,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [762080913] [2022-11-20 16:15:13,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 16:15:13,640 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-20 16:15:13,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:15:13,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-20 16:15:13,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-20 16:15:13,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:13,641 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:15:13,642 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:15:13,642 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:13,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:13,644 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-11-20 16:15:13,645 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:15:13,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:15:13,645 INFO L85 PathProgramCache]: Analyzing trace with hash 684250915, now seen corresponding path program 1 times [2022-11-20 16:15:13,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:15:13,646 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1423777628] [2022-11-20 16:15:13,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:15:13,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:15:13,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:15:13,700 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:15:13,700 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:15:13,700 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1423777628] [2022-11-20 16:15:13,700 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1423777628] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 16:15:13,701 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 16:15:13,701 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 16:15:13,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537293989] [2022-11-20 16:15:13,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 16:15:13,701 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 16:15:13,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:15:13,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 16:15:13,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 16:15:13,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:13,703 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:15:13,703 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:15:13,703 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:13,703 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:13,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:13,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:15:13,871 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-11-20 16:15:13,872 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:15:13,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:15:13,872 INFO L85 PathProgramCache]: Analyzing trace with hash -1555909228, now seen corresponding path program 1 times [2022-11-20 16:15:13,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:15:13,873 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [768463878] [2022-11-20 16:15:13,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:15:13,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:15:13,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:15:13,936 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:15:13,936 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:15:13,936 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [768463878] [2022-11-20 16:15:13,936 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [768463878] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 16:15:13,937 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1217977644] [2022-11-20 16:15:13,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:15:13,937 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 16:15:13,937 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 [2022-11-20 16:15:13,941 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 16:15:13,950 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2022-11-20 16:15:14,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:15:14,136 INFO L263 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 16:15:14,138 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 16:15:14,168 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:15:14,168 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 16:15:14,216 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:15:14,216 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1217977644] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 16:15:14,216 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 16:15:14,217 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-11-20 16:15:14,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1147260769] [2022-11-20 16:15:14,217 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 16:15:14,217 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-20 16:15:14,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:15:14,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-20 16:15:14,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-20 16:15:14,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:14,219 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:15:14,220 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.4) internal successors, (74), 10 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:15:14,220 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:14,220 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:15:14,220 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:14,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:14,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:15:14,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:15:14,399 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2022-11-20 16:15:14,596 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable46 [2022-11-20 16:15:14,596 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:15:14,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:15:14,596 INFO L85 PathProgramCache]: Analyzing trace with hash 1489633875, now seen corresponding path program 1 times [2022-11-20 16:15:14,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:15:14,597 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [834295668] [2022-11-20 16:15:14,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:15:14,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:15:14,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:15:14,725 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-20 16:15:14,725 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:15:14,725 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [834295668] [2022-11-20 16:15:14,726 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [834295668] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 16:15:14,726 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 16:15:14,726 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 16:15:14,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807037277] [2022-11-20 16:15:14,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 16:15:14,727 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 16:15:14,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:15:14,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 16:15:14,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 16:15:14,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:14,729 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:15:14,729 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:15:14,729 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:14,729 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:15:14,729 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:15:14,729 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:14,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:14,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:15:14,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:15:14,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 16:15:14,867 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-11-20 16:15:14,867 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:15:14,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:15:14,869 INFO L85 PathProgramCache]: Analyzing trace with hash 1099383682, now seen corresponding path program 1 times [2022-11-20 16:15:14,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:15:14,869 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [619261085] [2022-11-20 16:15:14,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:15:14,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:15:14,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:15:14,919 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-20 16:15:14,919 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:15:14,919 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [619261085] [2022-11-20 16:15:14,919 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [619261085] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 16:15:14,919 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 16:15:14,920 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 16:15:14,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391078701] [2022-11-20 16:15:14,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 16:15:14,920 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 16:15:14,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:15:14,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 16:15:14,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 16:15:14,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:14,922 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:15:14,923 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:15:14,923 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:14,923 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:15:14,923 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:15:14,923 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-11-20 16:15:14,923 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:15,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:15,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:15:15,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:15:15,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:15:15,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:15:15,098 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-11-20 16:15:15,098 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:15:15,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:15:15,099 INFO L85 PathProgramCache]: Analyzing trace with hash -468685094, now seen corresponding path program 1 times [2022-11-20 16:15:15,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:15:15,099 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [615743722] [2022-11-20 16:15:15,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:15:15,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:15:15,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:15:15,214 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-20 16:15:15,215 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:15:15,215 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [615743722] [2022-11-20 16:15:15,215 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [615743722] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 16:15:15,215 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1502667120] [2022-11-20 16:15:15,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:15:15,216 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 16:15:15,216 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 [2022-11-20 16:15:15,217 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 16:15:15,243 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2022-11-20 16:15:15,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:15:15,468 INFO L263 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-20 16:15:15,470 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 16:15:15,614 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-20 16:15:15,614 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 16:15:15,789 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-20 16:15:15,789 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1502667120] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 16:15:15,789 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 16:15:15,790 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 9, 9] total 19 [2022-11-20 16:15:15,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1983673649] [2022-11-20 16:15:15,790 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 16:15:15,791 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-20 16:15:15,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:15:15,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-20 16:15:15,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=263, Unknown=0, NotChecked=0, Total=342 [2022-11-20 16:15:15,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:15,793 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:15:15,793 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 10.578947368421053) internal successors, (201), 19 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:15:15,793 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:15,793 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:15:15,794 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:15:15,794 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:15:15,794 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:15:15,794 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:16,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:16,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:15:16,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:15:16,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:15:16,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:15:16,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-20 16:15:16,507 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2022-11-20 16:15:16,701 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable49 [2022-11-20 16:15:16,701 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:15:16,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:15:16,701 INFO L85 PathProgramCache]: Analyzing trace with hash 1357413743, now seen corresponding path program 1 times [2022-11-20 16:15:16,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:15:16,702 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2016744958] [2022-11-20 16:15:16,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:15:16,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:15:16,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:15:17,207 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 217 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-20 16:15:17,208 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:15:17,208 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2016744958] [2022-11-20 16:15:17,208 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2016744958] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 16:15:17,208 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2077654909] [2022-11-20 16:15:17,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:15:17,209 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 16:15:17,209 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 [2022-11-20 16:15:17,210 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 16:15:17,240 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2022-11-20 16:15:17,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:15:17,507 INFO L263 TraceCheckSpWp]: Trace formula consists of 460 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-20 16:15:17,510 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 16:15:17,661 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 217 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-20 16:15:17,661 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 16:15:18,063 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 217 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-20 16:15:18,064 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2077654909] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 16:15:18,064 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 16:15:18,065 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 34 [2022-11-20 16:15:18,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [124969756] [2022-11-20 16:15:18,065 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 16:15:18,066 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-11-20 16:15:18,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:15:18,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-11-20 16:15:18,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2022-11-20 16:15:18,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:18,072 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:15:18,073 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 7.5) internal successors, (255), 34 states have internal predecessors, (255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:15:18,073 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:18,073 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:15:18,073 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:15:18,073 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:15:18,073 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:15:18,074 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-11-20 16:15:18,074 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:18,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:18,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:15:18,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:15:18,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:15:18,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:15:18,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-20 16:15:18,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-11-20 16:15:18,530 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2022-11-20 16:15:18,729 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable50 [2022-11-20 16:15:18,731 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:15:18,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:15:18,732 INFO L85 PathProgramCache]: Analyzing trace with hash -1000147328, now seen corresponding path program 1 times [2022-11-20 16:15:18,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:15:18,733 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [849987881] [2022-11-20 16:15:18,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:15:18,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:15:18,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 16:15:18,761 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 16:15:18,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 16:15:18,797 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 16:15:18,797 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-20 16:15:18,797 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 7 remaining) [2022-11-20 16:15:18,798 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 7 remaining) [2022-11-20 16:15:18,798 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 7 remaining) [2022-11-20 16:15:18,798 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 7 remaining) [2022-11-20 16:15:18,798 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 7 remaining) [2022-11-20 16:15:18,799 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (1 of 7 remaining) [2022-11-20 16:15:18,799 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK (0 of 7 remaining) [2022-11-20 16:15:18,799 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-11-20 16:15:18,804 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 16:15:18,804 WARN L233 ceAbstractionStarter]: 8 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-20 16:15:18,804 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 9 thread instances. [2022-11-20 16:15:18,859 INFO L144 ThreadInstanceAdder]: Constructed 9 joinOtherThreadTransitions. [2022-11-20 16:15:18,863 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 16:15:18,863 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-11-20 16:15:18,863 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 [2022-11-20 16:15:18,867 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-11-20 16:15:18,876 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-11-20 16:15:18,876 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2022-11-20 16:15:18,878 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (26)] Waiting until timeout for monitored process [2022-11-20 16:15:18,878 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@46174585, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 16:15:18,878 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-11-20 16:15:18,917 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:15:18,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:15:18,917 INFO L85 PathProgramCache]: Analyzing trace with hash -1279851026, now seen corresponding path program 1 times [2022-11-20 16:15:18,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:15:18,917 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [154526499] [2022-11-20 16:15:18,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:15:18,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:15:18,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:15:18,935 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:15:18,936 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:15:18,936 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [154526499] [2022-11-20 16:15:18,936 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [154526499] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 16:15:18,936 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 16:15:18,936 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 16:15:18,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295100920] [2022-11-20 16:15:18,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 16:15:18,938 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-20 16:15:18,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:15:18,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-20 16:15:18,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-20 16:15:18,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:18,939 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:15:18,939 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:15:18,940 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:18,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:18,942 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-11-20 16:15:18,942 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:15:18,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:15:18,943 INFO L85 PathProgramCache]: Analyzing trace with hash -1315055197, now seen corresponding path program 1 times [2022-11-20 16:15:18,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:15:18,943 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [564916404] [2022-11-20 16:15:18,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:15:18,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:15:18,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:15:18,983 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:15:18,983 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:15:18,984 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [564916404] [2022-11-20 16:15:18,984 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [564916404] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 16:15:18,984 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 16:15:18,984 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 16:15:18,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1092580664] [2022-11-20 16:15:18,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 16:15:18,985 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 16:15:18,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:15:18,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 16:15:18,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 16:15:18,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:18,986 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:15:18,987 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:15:18,987 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:18,987 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:19,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:19,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:15:19,172 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2022-11-20 16:15:19,172 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:15:19,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:15:19,173 INFO L85 PathProgramCache]: Analyzing trace with hash -1043083784, now seen corresponding path program 1 times [2022-11-20 16:15:19,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:15:19,173 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1276400337] [2022-11-20 16:15:19,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:15:19,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:15:19,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:15:19,235 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:15:19,235 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:15:19,235 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1276400337] [2022-11-20 16:15:19,236 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1276400337] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 16:15:19,236 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2006400131] [2022-11-20 16:15:19,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:15:19,236 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 16:15:19,236 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 [2022-11-20 16:15:19,240 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 16:15:19,251 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2022-11-20 16:15:19,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:15:19,476 INFO L263 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 16:15:19,477 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 16:15:19,508 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:15:19,508 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 16:15:19,552 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:15:19,552 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2006400131] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 16:15:19,553 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 16:15:19,553 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-11-20 16:15:19,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19287618] [2022-11-20 16:15:19,553 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 16:15:19,554 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-20 16:15:19,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:15:19,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-20 16:15:19,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-20 16:15:19,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:19,556 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:15:19,556 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.4) internal successors, (74), 10 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:15:19,557 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:19,557 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:15:19,557 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:19,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:19,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:15:19,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:15:19,727 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0 [2022-11-20 16:15:19,925 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54,27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 16:15:19,925 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:15:19,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:15:19,926 INFO L85 PathProgramCache]: Analyzing trace with hash -1802870913, now seen corresponding path program 1 times [2022-11-20 16:15:19,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:15:19,926 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [438594472] [2022-11-20 16:15:19,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:15:19,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:15:19,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:15:20,032 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-20 16:15:20,032 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:15:20,032 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [438594472] [2022-11-20 16:15:20,033 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [438594472] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 16:15:20,033 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 16:15:20,033 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 16:15:20,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1074422429] [2022-11-20 16:15:20,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 16:15:20,034 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 16:15:20,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:15:20,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 16:15:20,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 16:15:20,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:20,035 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:15:20,036 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:15:20,036 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:20,036 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:15:20,036 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:15:20,036 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:20,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:20,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:15:20,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:15:20,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 16:15:20,161 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2022-11-20 16:15:20,162 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:15:20,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:15:20,162 INFO L85 PathProgramCache]: Analyzing trace with hash 1839896730, now seen corresponding path program 1 times [2022-11-20 16:15:20,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:15:20,163 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2014506909] [2022-11-20 16:15:20,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:15:20,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:15:20,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:15:20,211 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-20 16:15:20,211 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:15:20,212 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2014506909] [2022-11-20 16:15:20,212 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2014506909] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 16:15:20,212 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 16:15:20,212 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 16:15:20,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1193552693] [2022-11-20 16:15:20,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 16:15:20,213 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 16:15:20,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:15:20,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 16:15:20,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 16:15:20,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:20,215 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:15:20,215 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:15:20,215 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:20,216 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:15:20,216 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:15:20,216 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-11-20 16:15:20,216 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:20,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:20,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:15:20,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:15:20,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:15:20,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:15:20,506 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2022-11-20 16:15:20,507 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:15:20,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:15:20,508 INFO L85 PathProgramCache]: Analyzing trace with hash -91989495, now seen corresponding path program 1 times [2022-11-20 16:15:20,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:15:20,508 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2135562651] [2022-11-20 16:15:20,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:15:20,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:15:20,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:15:20,647 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-20 16:15:20,647 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:15:20,648 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2135562651] [2022-11-20 16:15:20,648 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2135562651] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 16:15:20,648 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1549139422] [2022-11-20 16:15:20,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:15:20,649 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 16:15:20,649 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 [2022-11-20 16:15:20,651 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 16:15:20,675 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2022-11-20 16:15:20,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:15:20,919 INFO L263 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-20 16:15:20,923 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 16:15:21,033 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-20 16:15:21,034 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 16:15:21,185 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-20 16:15:21,186 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1549139422] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 16:15:21,186 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 16:15:21,186 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 9, 9] total 19 [2022-11-20 16:15:21,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [88417444] [2022-11-20 16:15:21,187 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 16:15:21,187 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-20 16:15:21,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:15:21,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-20 16:15:21,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=263, Unknown=0, NotChecked=0, Total=342 [2022-11-20 16:15:21,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:21,190 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:15:21,190 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 10.578947368421053) internal successors, (201), 19 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:15:21,191 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:21,191 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:15:21,191 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:15:21,191 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:15:21,191 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:15:21,192 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:21,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:21,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:15:21,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:15:21,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:15:21,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:15:21,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-20 16:15:21,816 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2022-11-20 16:15:22,015 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable57 [2022-11-20 16:15:22,015 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:15:22,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:15:22,016 INFO L85 PathProgramCache]: Analyzing trace with hash 1789093591, now seen corresponding path program 1 times [2022-11-20 16:15:22,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:15:22,016 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1610204199] [2022-11-20 16:15:22,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:15:22,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:15:22,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:15:22,543 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 217 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-20 16:15:22,543 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:15:22,544 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1610204199] [2022-11-20 16:15:22,544 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1610204199] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 16:15:22,544 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [836664189] [2022-11-20 16:15:22,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:15:22,544 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 16:15:22,545 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 [2022-11-20 16:15:22,546 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 16:15:22,571 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2022-11-20 16:15:22,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:15:22,869 INFO L263 TraceCheckSpWp]: Trace formula consists of 460 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-20 16:15:22,873 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 16:15:23,028 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 217 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-20 16:15:23,029 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 16:15:23,446 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 217 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-20 16:15:23,446 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [836664189] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 16:15:23,446 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 16:15:23,446 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 34 [2022-11-20 16:15:23,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1528036034] [2022-11-20 16:15:23,447 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 16:15:23,448 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-11-20 16:15:23,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:15:23,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-11-20 16:15:23,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2022-11-20 16:15:23,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:23,451 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:15:23,451 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 7.5) internal successors, (255), 34 states have internal predecessors, (255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:15:23,451 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:23,452 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:15:23,452 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:15:23,452 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:15:23,452 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:15:23,452 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-11-20 16:15:23,452 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:24,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:24,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:15:24,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:15:24,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:15:24,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:15:24,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-20 16:15:24,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-11-20 16:15:24,017 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Forceful destruction successful, exit code 0 [2022-11-20 16:15:24,217 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable58 [2022-11-20 16:15:24,217 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:15:24,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:15:24,217 INFO L85 PathProgramCache]: Analyzing trace with hash 1515442195, now seen corresponding path program 1 times [2022-11-20 16:15:24,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:15:24,218 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1690211303] [2022-11-20 16:15:24,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:15:24,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:15:24,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 16:15:24,249 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 16:15:24,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 16:15:24,292 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 16:15:24,292 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-20 16:15:24,293 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 7 remaining) [2022-11-20 16:15:24,293 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 7 remaining) [2022-11-20 16:15:24,293 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 7 remaining) [2022-11-20 16:15:24,293 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 7 remaining) [2022-11-20 16:15:24,294 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 7 remaining) [2022-11-20 16:15:24,294 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (1 of 7 remaining) [2022-11-20 16:15:24,294 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK (0 of 7 remaining) [2022-11-20 16:15:24,294 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2022-11-20 16:15:24,301 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 16:15:24,302 WARN L233 ceAbstractionStarter]: 9 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-20 16:15:24,302 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 10 thread instances. [2022-11-20 16:15:24,342 INFO L144 ThreadInstanceAdder]: Constructed 10 joinOtherThreadTransitions. [2022-11-20 16:15:24,346 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 16:15:24,347 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-11-20 16:15:24,347 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 [2022-11-20 16:15:24,348 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-11-20 16:15:24,355 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-11-20 16:15:24,355 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2022-11-20 16:15:24,356 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@46174585, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 16:15:24,356 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-11-20 16:15:24,375 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (30)] Waiting until timeout for monitored process [2022-11-20 16:15:24,405 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:15:24,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:15:24,405 INFO L85 PathProgramCache]: Analyzing trace with hash 1307758574, now seen corresponding path program 1 times [2022-11-20 16:15:24,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:15:24,406 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039060424] [2022-11-20 16:15:24,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:15:24,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:15:24,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:15:24,421 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:15:24,421 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:15:24,421 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1039060424] [2022-11-20 16:15:24,422 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1039060424] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 16:15:24,422 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 16:15:24,422 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 16:15:24,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1885127055] [2022-11-20 16:15:24,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 16:15:24,423 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-20 16:15:24,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:15:24,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-20 16:15:24,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-20 16:15:24,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:24,425 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:15:24,425 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:15:24,425 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:24,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:24,428 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2022-11-20 16:15:24,428 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:15:24,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:15:24,428 INFO L85 PathProgramCache]: Analyzing trace with hash -1408269277, now seen corresponding path program 1 times [2022-11-20 16:15:24,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:15:24,429 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [652611006] [2022-11-20 16:15:24,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:15:24,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:15:24,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:15:24,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:15:24,460 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:15:24,460 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [652611006] [2022-11-20 16:15:24,460 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [652611006] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 16:15:24,460 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 16:15:24,460 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 16:15:24,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1649873058] [2022-11-20 16:15:24,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 16:15:24,461 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 16:15:24,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:15:24,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 16:15:24,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 16:15:24,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:24,463 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:15:24,463 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:15:24,464 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:24,464 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:24,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:24,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:15:24,664 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2022-11-20 16:15:24,664 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:15:24,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:15:24,664 INFO L85 PathProgramCache]: Analyzing trace with hash -629426596, now seen corresponding path program 1 times [2022-11-20 16:15:24,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:15:24,665 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [934764755] [2022-11-20 16:15:24,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:15:24,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:15:24,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:15:24,732 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:15:24,732 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:15:24,733 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [934764755] [2022-11-20 16:15:24,733 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [934764755] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 16:15:24,733 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [77213362] [2022-11-20 16:15:24,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:15:24,733 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 16:15:24,734 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 [2022-11-20 16:15:24,738 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 16:15:24,751 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2022-11-20 16:15:25,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:15:25,010 INFO L263 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 16:15:25,011 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 16:15:25,041 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:15:25,041 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 16:15:25,079 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:15:25,080 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [77213362] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 16:15:25,080 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 16:15:25,080 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-11-20 16:15:25,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [663926826] [2022-11-20 16:15:25,081 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 16:15:25,081 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-20 16:15:25,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:15:25,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-20 16:15:25,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-20 16:15:25,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:25,083 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:15:25,084 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.4) internal successors, (74), 10 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:15:25,084 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:25,084 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:15:25,084 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:25,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:25,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:15:25,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:15:25,295 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Forceful destruction successful, exit code 0 [2022-11-20 16:15:25,494 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable62 [2022-11-20 16:15:25,494 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:15:25,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:15:25,494 INFO L85 PathProgramCache]: Analyzing trace with hash -1407198037, now seen corresponding path program 1 times [2022-11-20 16:15:25,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:15:25,495 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [491769398] [2022-11-20 16:15:25,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:15:25,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:15:25,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:15:25,599 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-20 16:15:25,599 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:15:25,599 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [491769398] [2022-11-20 16:15:25,599 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [491769398] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 16:15:25,600 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 16:15:25,600 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 16:15:25,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313015247] [2022-11-20 16:15:25,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 16:15:25,600 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 16:15:25,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:15:25,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 16:15:25,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 16:15:25,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:25,602 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:15:25,603 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:15:25,603 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:25,603 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:15:25,603 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:15:25,603 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:25,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:25,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:15:25,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:15:25,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 16:15:25,716 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2022-11-20 16:15:25,717 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:15:25,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:15:25,717 INFO L85 PathProgramCache]: Analyzing trace with hash 529313266, now seen corresponding path program 1 times [2022-11-20 16:15:25,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:15:25,717 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1946670545] [2022-11-20 16:15:25,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:15:25,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:15:25,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:15:25,765 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-20 16:15:25,765 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:15:25,765 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1946670545] [2022-11-20 16:15:25,765 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1946670545] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 16:15:25,766 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 16:15:25,766 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 16:15:25,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [625382128] [2022-11-20 16:15:25,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 16:15:25,766 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 16:15:25,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:15:25,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 16:15:25,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 16:15:25,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:25,768 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:15:25,768 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:15:25,769 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:25,769 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:15:25,769 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:15:25,769 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-11-20 16:15:25,769 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:25,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:25,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:15:25,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:15:25,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:15:25,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:15:25,977 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2022-11-20 16:15:25,978 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:15:25,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:15:25,978 INFO L85 PathProgramCache]: Analyzing trace with hash -962311752, now seen corresponding path program 1 times [2022-11-20 16:15:25,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:15:25,979 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1953899141] [2022-11-20 16:15:25,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:15:25,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:15:26,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:15:26,085 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-20 16:15:26,085 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:15:26,086 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1953899141] [2022-11-20 16:15:26,086 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1953899141] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 16:15:26,086 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [221076912] [2022-11-20 16:15:26,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:15:26,087 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 16:15:26,087 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 [2022-11-20 16:15:26,088 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 16:15:26,119 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2022-11-20 16:15:26,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:15:26,416 INFO L263 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-20 16:15:26,418 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 16:15:26,529 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-20 16:15:26,530 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 16:15:26,673 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-20 16:15:26,673 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [221076912] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 16:15:26,673 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 16:15:26,674 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 9, 9] total 19 [2022-11-20 16:15:26,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [318321198] [2022-11-20 16:15:26,674 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 16:15:26,675 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-20 16:15:26,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:15:26,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-20 16:15:26,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=263, Unknown=0, NotChecked=0, Total=342 [2022-11-20 16:15:26,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:26,677 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:15:26,677 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 10.578947368421053) internal successors, (201), 19 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:15:26,678 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:26,678 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:15:26,678 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:15:26,678 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:15:26,678 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:15:26,678 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:27,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:27,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:15:27,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:15:27,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:15:27,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:15:27,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-20 16:15:27,431 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Forceful destruction successful, exit code 0 [2022-11-20 16:15:27,626 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable65 [2022-11-20 16:15:27,626 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:15:27,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:15:27,627 INFO L85 PathProgramCache]: Analyzing trace with hash 823056255, now seen corresponding path program 1 times [2022-11-20 16:15:27,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:15:27,627 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1846974411] [2022-11-20 16:15:27,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:15:27,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:15:27,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:15:28,068 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 217 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-20 16:15:28,068 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:15:28,068 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1846974411] [2022-11-20 16:15:28,068 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1846974411] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 16:15:28,069 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [641530950] [2022-11-20 16:15:28,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:15:28,070 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 16:15:28,071 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 [2022-11-20 16:15:28,073 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 16:15:28,076 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2022-11-20 16:15:28,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:15:28,394 INFO L263 TraceCheckSpWp]: Trace formula consists of 460 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-20 16:15:28,398 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 16:15:28,538 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 217 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-20 16:15:28,538 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 16:15:28,969 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 217 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-20 16:15:28,969 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [641530950] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 16:15:28,970 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 16:15:28,970 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 34 [2022-11-20 16:15:28,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [104930953] [2022-11-20 16:15:28,970 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 16:15:28,971 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-11-20 16:15:28,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:15:28,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-11-20 16:15:28,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2022-11-20 16:15:28,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:28,976 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:15:28,976 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 7.5) internal successors, (255), 34 states have internal predecessors, (255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:15:28,977 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:28,977 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:15:28,977 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:15:28,977 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:15:28,977 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:15:28,977 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-11-20 16:15:28,978 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:29,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:29,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:15:29,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:15:29,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:15:29,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:15:29,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-20 16:15:29,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-11-20 16:15:29,818 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Ended with exit code 0 [2022-11-20 16:15:30,017 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66,33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 16:15:30,018 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:15:30,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:15:30,018 INFO L85 PathProgramCache]: Analyzing trace with hash 1864497951, now seen corresponding path program 1 times [2022-11-20 16:15:30,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:15:30,018 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1962620301] [2022-11-20 16:15:30,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:15:30,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:15:30,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 16:15:30,059 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 16:15:30,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 16:15:30,114 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 16:15:30,114 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-20 16:15:30,115 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 7 remaining) [2022-11-20 16:15:30,115 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 7 remaining) [2022-11-20 16:15:30,115 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 7 remaining) [2022-11-20 16:15:30,115 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 7 remaining) [2022-11-20 16:15:30,116 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 7 remaining) [2022-11-20 16:15:30,116 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (1 of 7 remaining) [2022-11-20 16:15:30,116 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK (0 of 7 remaining) [2022-11-20 16:15:30,116 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2022-11-20 16:15:30,124 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 16:15:30,125 WARN L233 ceAbstractionStarter]: 10 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-20 16:15:30,125 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 11 thread instances. [2022-11-20 16:15:30,175 INFO L144 ThreadInstanceAdder]: Constructed 11 joinOtherThreadTransitions. [2022-11-20 16:15:30,180 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 16:15:30,181 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-11-20 16:15:30,181 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 [2022-11-20 16:15:30,182 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-11-20 16:15:30,188 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-11-20 16:15:30,189 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2022-11-20 16:15:30,189 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@46174585, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 16:15:30,189 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-11-20 16:15:30,213 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (34)] Waiting until timeout for monitored process [2022-11-20 16:15:30,231 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:15:30,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:15:30,232 INFO L85 PathProgramCache]: Analyzing trace with hash 1483946478, now seen corresponding path program 1 times [2022-11-20 16:15:30,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:15:30,232 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [231350414] [2022-11-20 16:15:30,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:15:30,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:15:30,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:15:30,254 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:15:30,254 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:15:30,254 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [231350414] [2022-11-20 16:15:30,255 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [231350414] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 16:15:30,255 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 16:15:30,255 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 16:15:30,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1323747527] [2022-11-20 16:15:30,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 16:15:30,256 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-20 16:15:30,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:15:30,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-20 16:15:30,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-20 16:15:30,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:30,258 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:15:30,258 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:15:30,258 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:30,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:30,261 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2022-11-20 16:15:30,261 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:15:30,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:15:30,262 INFO L85 PathProgramCache]: Analyzing trace with hash 404608675, now seen corresponding path program 1 times [2022-11-20 16:15:30,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:15:30,262 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [888410800] [2022-11-20 16:15:30,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:15:30,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:15:30,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:15:30,299 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:15:30,299 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:15:30,300 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [888410800] [2022-11-20 16:15:30,300 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [888410800] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 16:15:30,300 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 16:15:30,300 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 16:15:30,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1951449931] [2022-11-20 16:15:30,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 16:15:30,301 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 16:15:30,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:15:30,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 16:15:30,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 16:15:30,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:30,303 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:15:30,303 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:15:30,303 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:30,303 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:30,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:30,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:15:30,513 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2022-11-20 16:15:30,513 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:15:30,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:15:30,514 INFO L85 PathProgramCache]: Analyzing trace with hash -314937664, now seen corresponding path program 1 times [2022-11-20 16:15:30,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:15:30,514 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [389894010] [2022-11-20 16:15:30,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:15:30,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:15:30,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:15:30,571 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:15:30,571 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:15:30,571 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [389894010] [2022-11-20 16:15:30,572 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [389894010] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 16:15:30,572 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1652830355] [2022-11-20 16:15:30,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:15:30,572 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 16:15:30,572 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 [2022-11-20 16:15:30,579 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 16:15:30,602 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2022-11-20 16:15:30,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:15:30,871 INFO L263 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 16:15:30,872 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 16:15:30,910 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:15:30,910 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 16:15:30,951 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:15:30,951 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1652830355] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 16:15:30,951 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 16:15:30,951 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-11-20 16:15:30,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1614406393] [2022-11-20 16:15:30,952 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 16:15:30,952 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-20 16:15:30,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:15:30,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-20 16:15:30,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-20 16:15:30,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:30,955 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:15:30,955 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.4) internal successors, (74), 10 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:15:30,955 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:30,956 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:15:30,956 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:31,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:31,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:15:31,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:15:31,133 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Forceful destruction successful, exit code 0 [2022-11-20 16:15:31,325 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70,35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 16:15:31,325 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:15:31,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:15:31,326 INFO L85 PathProgramCache]: Analyzing trace with hash -1618314793, now seen corresponding path program 1 times [2022-11-20 16:15:31,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:15:31,326 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [494557716] [2022-11-20 16:15:31,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:15:31,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:15:31,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:15:31,431 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-20 16:15:31,431 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:15:31,431 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [494557716] [2022-11-20 16:15:31,431 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [494557716] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 16:15:31,431 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 16:15:31,432 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 16:15:31,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1317447870] [2022-11-20 16:15:31,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 16:15:31,432 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 16:15:31,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:15:31,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 16:15:31,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 16:15:31,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:31,435 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:15:31,435 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:15:31,435 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:31,435 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:15:31,435 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:15:31,436 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:31,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:31,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:15:31,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:15:31,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 16:15:31,570 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2022-11-20 16:15:31,570 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:15:31,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:15:31,571 INFO L85 PathProgramCache]: Analyzing trace with hash 1462600586, now seen corresponding path program 1 times [2022-11-20 16:15:31,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:15:31,577 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1382027405] [2022-11-20 16:15:31,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:15:31,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:15:31,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:15:31,622 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-20 16:15:31,622 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:15:31,622 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1382027405] [2022-11-20 16:15:31,623 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1382027405] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 16:15:31,623 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 16:15:31,623 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 16:15:31,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424397988] [2022-11-20 16:15:31,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 16:15:31,624 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 16:15:31,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:15:31,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 16:15:31,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 16:15:31,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:31,625 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:15:31,625 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:15:31,625 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:31,626 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:15:31,626 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:15:31,626 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-11-20 16:15:31,626 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:31,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:31,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:15:31,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:15:31,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:15:31,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:15:31,869 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2022-11-20 16:15:31,870 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:15:31,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:15:31,870 INFO L85 PathProgramCache]: Analyzing trace with hash 207096551, now seen corresponding path program 1 times [2022-11-20 16:15:31,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:15:31,871 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [290651581] [2022-11-20 16:15:31,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:15:31,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:15:31,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:15:32,025 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-20 16:15:32,025 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:15:32,025 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [290651581] [2022-11-20 16:15:32,025 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [290651581] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 16:15:32,026 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1769330409] [2022-11-20 16:15:32,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:15:32,026 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 16:15:32,026 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 [2022-11-20 16:15:32,028 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 16:15:32,063 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2022-11-20 16:15:32,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:15:32,380 INFO L263 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-20 16:15:32,382 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 16:15:32,507 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-20 16:15:32,507 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 16:15:32,661 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-20 16:15:32,661 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1769330409] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 16:15:32,661 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 16:15:32,661 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 9, 9] total 19 [2022-11-20 16:15:32,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41087192] [2022-11-20 16:15:32,662 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 16:15:32,662 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-20 16:15:32,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:15:32,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-20 16:15:32,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=263, Unknown=0, NotChecked=0, Total=342 [2022-11-20 16:15:32,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:32,663 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:15:32,664 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 10.578947368421053) internal successors, (201), 19 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:15:32,664 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:32,664 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:15:32,664 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:15:32,669 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:15:32,670 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:15:32,670 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:33,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:33,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:15:33,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:15:33,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:15:33,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:15:33,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-20 16:15:33,406 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Forceful destruction successful, exit code 0 [2022-11-20 16:15:33,596 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73,36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 16:15:33,596 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:15:33,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:15:33,597 INFO L85 PathProgramCache]: Analyzing trace with hash 300924519, now seen corresponding path program 1 times [2022-11-20 16:15:33,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:15:33,597 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [604455684] [2022-11-20 16:15:33,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:15:33,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:15:33,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:15:34,057 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 217 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-20 16:15:34,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:15:34,057 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [604455684] [2022-11-20 16:15:34,057 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [604455684] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 16:15:34,057 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1335545269] [2022-11-20 16:15:34,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:15:34,058 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 16:15:34,058 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 [2022-11-20 16:15:34,059 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 16:15:34,065 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Waiting until timeout for monitored process [2022-11-20 16:15:34,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:15:34,383 INFO L263 TraceCheckSpWp]: Trace formula consists of 460 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-20 16:15:34,387 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 16:15:34,512 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 217 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-20 16:15:34,513 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 16:15:34,917 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 217 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-20 16:15:34,917 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1335545269] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 16:15:34,917 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 16:15:34,918 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 34 [2022-11-20 16:15:34,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549416263] [2022-11-20 16:15:34,918 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 16:15:34,918 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-11-20 16:15:34,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:15:34,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-11-20 16:15:34,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2022-11-20 16:15:34,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:34,921 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:15:34,921 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 7.5) internal successors, (255), 34 states have internal predecessors, (255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:15:34,921 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:34,921 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:15:34,922 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:15:34,922 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:15:34,922 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:15:34,922 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-11-20 16:15:34,922 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:35,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:35,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:15:35,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:15:35,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:15:35,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:15:35,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-20 16:15:35,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-11-20 16:15:35,739 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Forceful destruction successful, exit code 0 [2022-11-20 16:15:35,934 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable74 [2022-11-20 16:15:35,934 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:15:35,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:15:35,935 INFO L85 PathProgramCache]: Analyzing trace with hash 491436388, now seen corresponding path program 1 times [2022-11-20 16:15:35,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:15:35,935 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [579218489] [2022-11-20 16:15:35,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:15:35,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:15:35,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 16:15:35,973 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 16:15:35,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 16:15:36,021 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 16:15:36,021 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-20 16:15:36,022 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 7 remaining) [2022-11-20 16:15:36,022 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 7 remaining) [2022-11-20 16:15:36,022 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 7 remaining) [2022-11-20 16:15:36,022 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 7 remaining) [2022-11-20 16:15:36,023 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 7 remaining) [2022-11-20 16:15:36,023 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (1 of 7 remaining) [2022-11-20 16:15:36,023 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK (0 of 7 remaining) [2022-11-20 16:15:36,023 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75 [2022-11-20 16:15:36,027 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 16:15:36,028 WARN L233 ceAbstractionStarter]: 11 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-20 16:15:36,028 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 12 thread instances. [2022-11-20 16:15:36,068 INFO L144 ThreadInstanceAdder]: Constructed 12 joinOtherThreadTransitions. [2022-11-20 16:15:36,072 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 16:15:36,072 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-11-20 16:15:36,073 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 [2022-11-20 16:15:36,074 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-11-20 16:15:36,085 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-11-20 16:15:36,085 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2022-11-20 16:15:36,085 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@46174585, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 16:15:36,085 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-11-20 16:15:36,109 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (38)] Waiting until timeout for monitored process [2022-11-20 16:15:36,124 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:15:36,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:15:36,125 INFO L85 PathProgramCache]: Analyzing trace with hash -751287314, now seen corresponding path program 1 times [2022-11-20 16:15:36,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:15:36,125 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1925193205] [2022-11-20 16:15:36,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:15:36,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:15:36,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:15:36,142 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:15:36,143 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:15:36,143 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1925193205] [2022-11-20 16:15:36,143 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1925193205] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 16:15:36,143 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 16:15:36,143 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 16:15:36,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982244955] [2022-11-20 16:15:36,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 16:15:36,144 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-20 16:15:36,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:15:36,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-20 16:15:36,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-20 16:15:36,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:36,145 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:15:36,146 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:15:36,146 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:36,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:36,148 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76 [2022-11-20 16:15:36,148 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:15:36,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:15:36,149 INFO L85 PathProgramCache]: Analyzing trace with hash -171388637, now seen corresponding path program 1 times [2022-11-20 16:15:36,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:15:36,150 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [739576487] [2022-11-20 16:15:36,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:15:36,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:15:36,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:15:36,179 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:15:36,179 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:15:36,179 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [739576487] [2022-11-20 16:15:36,179 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [739576487] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 16:15:36,180 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 16:15:36,180 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 16:15:36,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [835521154] [2022-11-20 16:15:36,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 16:15:36,180 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 16:15:36,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:15:36,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 16:15:36,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 16:15:36,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:36,182 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:15:36,182 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:15:36,182 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:36,182 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:36,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:36,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:15:36,394 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77 [2022-11-20 16:15:36,395 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:15:36,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:15:36,395 INFO L85 PathProgramCache]: Analyzing trace with hash -99616988, now seen corresponding path program 1 times [2022-11-20 16:15:36,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:15:36,396 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [715361548] [2022-11-20 16:15:36,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:15:36,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:15:36,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:15:36,463 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:15:36,463 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:15:36,464 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [715361548] [2022-11-20 16:15:36,464 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [715361548] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 16:15:36,464 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [649466399] [2022-11-20 16:15:36,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:15:36,464 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 16:15:36,465 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 [2022-11-20 16:15:36,469 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 16:15:36,495 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Waiting until timeout for monitored process [2022-11-20 16:15:36,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:15:36,758 INFO L263 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 16:15:36,759 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 16:15:36,785 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:15:36,785 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 16:15:36,823 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:15:36,823 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [649466399] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 16:15:36,823 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 16:15:36,823 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-11-20 16:15:36,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1805540404] [2022-11-20 16:15:36,823 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 16:15:36,824 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-20 16:15:36,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:15:36,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-20 16:15:36,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-20 16:15:36,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:36,825 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:15:36,825 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.4) internal successors, (74), 10 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:15:36,825 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:36,825 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:15:36,826 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:36,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:36,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:15:36,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:15:37,000 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Forceful destruction successful, exit code 0 [2022-11-20 16:15:37,197 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78,39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 16:15:37,198 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:15:37,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:15:37,198 INFO L85 PathProgramCache]: Analyzing trace with hash 1858746115, now seen corresponding path program 1 times [2022-11-20 16:15:37,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:15:37,198 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2113010483] [2022-11-20 16:15:37,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:15:37,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:15:37,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:15:37,301 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-20 16:15:37,301 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:15:37,301 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2113010483] [2022-11-20 16:15:37,301 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2113010483] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 16:15:37,302 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 16:15:37,302 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 16:15:37,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1845705767] [2022-11-20 16:15:37,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 16:15:37,302 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 16:15:37,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:15:37,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 16:15:37,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 16:15:37,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:37,304 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:15:37,304 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:15:37,305 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:37,305 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:15:37,305 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:15:37,305 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:37,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:37,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:15:37,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:15:37,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 16:15:37,518 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79 [2022-11-20 16:15:37,518 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:15:37,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:15:37,519 INFO L85 PathProgramCache]: Analyzing trace with hash 344791394, now seen corresponding path program 1 times [2022-11-20 16:15:37,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:15:37,519 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [319689932] [2022-11-20 16:15:37,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:15:37,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:15:37,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:15:37,565 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-20 16:15:37,565 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:15:37,565 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [319689932] [2022-11-20 16:15:37,566 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [319689932] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 16:15:37,566 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 16:15:37,566 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 16:15:37,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2067931807] [2022-11-20 16:15:37,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 16:15:37,567 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 16:15:37,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:15:37,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 16:15:37,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 16:15:37,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:37,568 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:15:37,568 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:15:37,569 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:37,569 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:15:37,569 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:15:37,569 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-11-20 16:15:37,569 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:37,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:37,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:15:37,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:15:37,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:15:37,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:15:37,807 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80 [2022-11-20 16:15:37,807 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:15:37,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:15:37,808 INFO L85 PathProgramCache]: Analyzing trace with hash 1026734102, now seen corresponding path program 1 times [2022-11-20 16:15:37,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:15:37,808 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1261496228] [2022-11-20 16:15:37,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:15:37,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:15:37,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:15:37,901 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-20 16:15:37,901 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:15:37,901 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1261496228] [2022-11-20 16:15:37,901 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1261496228] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 16:15:37,901 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1697755129] [2022-11-20 16:15:37,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:15:37,902 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 16:15:37,902 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 [2022-11-20 16:15:37,903 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 16:15:37,930 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Waiting until timeout for monitored process [2022-11-20 16:15:38,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:15:38,259 INFO L263 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-20 16:15:38,261 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 16:15:38,380 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-20 16:15:38,380 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 16:15:38,538 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-20 16:15:38,538 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1697755129] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 16:15:38,538 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 16:15:38,538 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 9, 9] total 19 [2022-11-20 16:15:38,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012526795] [2022-11-20 16:15:38,539 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 16:15:38,539 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-20 16:15:38,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:15:38,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-20 16:15:38,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=263, Unknown=0, NotChecked=0, Total=342 [2022-11-20 16:15:38,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:38,540 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:15:38,541 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 10.578947368421053) internal successors, (201), 19 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:15:38,541 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:38,541 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:15:38,541 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:15:38,541 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:15:38,541 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:15:38,541 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:39,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:39,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:15:39,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:15:39,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:15:39,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:15:39,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-20 16:15:39,313 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Forceful destruction successful, exit code 0 [2022-11-20 16:15:39,513 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81,40 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 16:15:39,513 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:15:39,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:15:39,513 INFO L85 PathProgramCache]: Analyzing trace with hash -613590129, now seen corresponding path program 1 times [2022-11-20 16:15:39,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:15:39,514 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1017819029] [2022-11-20 16:15:39,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:15:39,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:15:39,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:15:40,006 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 217 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-20 16:15:40,007 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:15:40,007 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1017819029] [2022-11-20 16:15:40,007 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1017819029] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 16:15:40,007 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1273981537] [2022-11-20 16:15:40,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:15:40,007 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 16:15:40,008 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 [2022-11-20 16:15:40,009 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 16:15:40,012 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Waiting until timeout for monitored process [2022-11-20 16:15:40,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:15:40,359 INFO L263 TraceCheckSpWp]: Trace formula consists of 460 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-20 16:15:40,363 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 16:15:40,510 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 217 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-20 16:15:40,511 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 16:15:40,899 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 217 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-20 16:15:40,899 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1273981537] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 16:15:40,900 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 16:15:40,901 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 34 [2022-11-20 16:15:40,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812312440] [2022-11-20 16:15:40,901 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 16:15:40,902 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-11-20 16:15:40,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:15:40,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-11-20 16:15:40,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2022-11-20 16:15:40,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:40,905 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:15:40,905 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 7.5) internal successors, (255), 34 states have internal predecessors, (255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:15:40,906 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:40,906 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:15:40,906 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:15:40,906 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:15:40,906 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:15:40,906 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-11-20 16:15:40,907 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:41,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:41,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:15:41,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:15:41,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:15:41,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:15:41,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-20 16:15:41,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-11-20 16:15:41,783 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Forceful destruction successful, exit code 0 [2022-11-20 16:15:41,978 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable82 [2022-11-20 16:15:41,978 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:15:41,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:15:41,978 INFO L85 PathProgramCache]: Analyzing trace with hash -2041193310, now seen corresponding path program 1 times [2022-11-20 16:15:41,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:15:41,979 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [900389495] [2022-11-20 16:15:41,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:15:41,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:15:42,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 16:15:42,011 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 16:15:42,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 16:15:42,062 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 16:15:42,063 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-20 16:15:42,063 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 7 remaining) [2022-11-20 16:15:42,063 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 7 remaining) [2022-11-20 16:15:42,063 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 7 remaining) [2022-11-20 16:15:42,064 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 7 remaining) [2022-11-20 16:15:42,064 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 7 remaining) [2022-11-20 16:15:42,064 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (1 of 7 remaining) [2022-11-20 16:15:42,064 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK (0 of 7 remaining) [2022-11-20 16:15:42,064 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83 [2022-11-20 16:15:42,068 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 16:15:42,068 WARN L233 ceAbstractionStarter]: 12 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-20 16:15:42,068 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 13 thread instances. [2022-11-20 16:15:42,108 INFO L144 ThreadInstanceAdder]: Constructed 13 joinOtherThreadTransitions. [2022-11-20 16:15:42,112 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 16:15:42,113 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-11-20 16:15:42,113 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 [2022-11-20 16:15:42,114 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-11-20 16:15:42,125 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-11-20 16:15:42,125 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2022-11-20 16:15:42,125 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@46174585, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 16:15:42,126 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-11-20 16:15:42,149 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (42)] Waiting until timeout for monitored process [2022-11-20 16:15:42,165 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:15:42,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:15:42,165 INFO L85 PathProgramCache]: Analyzing trace with hash -1102975506, now seen corresponding path program 1 times [2022-11-20 16:15:42,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:15:42,165 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1310560390] [2022-11-20 16:15:42,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:15:42,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:15:42,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:15:42,182 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:15:42,182 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:15:42,182 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1310560390] [2022-11-20 16:15:42,183 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1310560390] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 16:15:42,183 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 16:15:42,183 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 16:15:42,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262506629] [2022-11-20 16:15:42,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 16:15:42,184 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-20 16:15:42,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:15:42,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-20 16:15:42,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-20 16:15:42,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:42,185 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:15:42,185 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:15:42,185 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:42,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:42,188 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84 [2022-11-20 16:15:42,188 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:15:42,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:15:42,188 INFO L85 PathProgramCache]: Analyzing trace with hash 1158706083, now seen corresponding path program 1 times [2022-11-20 16:15:42,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:15:42,189 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1684100306] [2022-11-20 16:15:42,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:15:42,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:15:42,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:15:42,224 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:15:42,224 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:15:42,225 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1684100306] [2022-11-20 16:15:42,225 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1684100306] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 16:15:42,225 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 16:15:42,225 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 16:15:42,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1608573884] [2022-11-20 16:15:42,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 16:15:42,226 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 16:15:42,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:15:42,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 16:15:42,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 16:15:42,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:42,228 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:15:42,228 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:15:42,229 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:42,229 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:42,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:42,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:15:42,453 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85 [2022-11-20 16:15:42,453 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:15:42,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:15:42,454 INFO L85 PathProgramCache]: Analyzing trace with hash 16535432, now seen corresponding path program 1 times [2022-11-20 16:15:42,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:15:42,454 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [540820657] [2022-11-20 16:15:42,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:15:42,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:15:42,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:15:42,532 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:15:42,533 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:15:42,533 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [540820657] [2022-11-20 16:15:42,533 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [540820657] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 16:15:42,533 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [582985317] [2022-11-20 16:15:42,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:15:42,534 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 16:15:42,534 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 [2022-11-20 16:15:42,539 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 16:15:42,550 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Waiting until timeout for monitored process [2022-11-20 16:15:42,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:15:42,833 INFO L263 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 16:15:42,834 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 16:15:42,857 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:15:42,858 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 16:15:42,899 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:15:42,899 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [582985317] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 16:15:42,899 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 16:15:42,899 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-11-20 16:15:42,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2128253281] [2022-11-20 16:15:42,899 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 16:15:42,900 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-20 16:15:42,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:15:42,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-20 16:15:42,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-20 16:15:42,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:42,901 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:15:42,901 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.4) internal successors, (74), 10 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:15:42,901 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:42,901 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:15:42,901 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:43,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:43,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:15:43,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:15:43,111 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Forceful destruction successful, exit code 0 [2022-11-20 16:15:43,308 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable86,43 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 16:15:43,308 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:15:43,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:15:43,309 INFO L85 PathProgramCache]: Analyzing trace with hash 434050095, now seen corresponding path program 1 times [2022-11-20 16:15:43,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:15:43,309 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1915799649] [2022-11-20 16:15:43,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:15:43,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:15:43,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:15:43,401 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-20 16:15:43,401 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:15:43,401 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1915799649] [2022-11-20 16:15:43,401 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1915799649] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 16:15:43,402 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 16:15:43,402 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 16:15:43,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556917096] [2022-11-20 16:15:43,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 16:15:43,402 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 16:15:43,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:15:43,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 16:15:43,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 16:15:43,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:43,404 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:15:43,404 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:15:43,404 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:43,404 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:15:43,404 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:15:43,404 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:43,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:43,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:15:43,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:15:43,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 16:15:43,527 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable87 [2022-11-20 16:15:43,527 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:15:43,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:15:43,527 INFO L85 PathProgramCache]: Analyzing trace with hash 1470852986, now seen corresponding path program 1 times [2022-11-20 16:15:43,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:15:43,528 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [965959909] [2022-11-20 16:15:43,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:15:43,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:15:43,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:15:43,571 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-20 16:15:43,571 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:15:43,571 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [965959909] [2022-11-20 16:15:43,572 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [965959909] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 16:15:43,572 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 16:15:43,572 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 16:15:43,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [709039341] [2022-11-20 16:15:43,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 16:15:43,573 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 16:15:43,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:15:43,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 16:15:43,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 16:15:43,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:43,574 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:15:43,574 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:15:43,575 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:43,575 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:15:43,575 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:15:43,575 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-11-20 16:15:43,575 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:43,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:43,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:15:43,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:15:43,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:15:43,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:15:43,808 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable88 [2022-11-20 16:15:43,809 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:15:43,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:15:43,809 INFO L85 PathProgramCache]: Analyzing trace with hash -35801531, now seen corresponding path program 1 times [2022-11-20 16:15:43,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:15:43,810 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [569962478] [2022-11-20 16:15:43,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:15:43,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:15:43,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:15:43,899 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-20 16:15:43,900 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:15:43,900 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [569962478] [2022-11-20 16:15:43,900 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [569962478] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 16:15:43,900 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1916875057] [2022-11-20 16:15:43,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:15:43,901 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 16:15:43,901 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 [2022-11-20 16:15:43,902 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 16:15:43,936 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Waiting until timeout for monitored process [2022-11-20 16:15:44,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:15:44,238 INFO L263 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-20 16:15:44,240 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 16:15:44,346 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-20 16:15:44,346 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 16:15:44,477 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-20 16:15:44,478 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1916875057] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 16:15:44,478 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 16:15:44,478 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 9, 9] total 19 [2022-11-20 16:15:44,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1937135294] [2022-11-20 16:15:44,479 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 16:15:44,479 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-20 16:15:44,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:15:44,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-20 16:15:44,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=263, Unknown=0, NotChecked=0, Total=342 [2022-11-20 16:15:44,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:44,481 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:15:44,481 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 10.578947368421053) internal successors, (201), 19 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:15:44,481 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:44,481 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:15:44,481 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:15:44,482 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:15:44,482 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:15:44,482 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:45,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:45,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:15:45,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:15:45,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:15:45,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:15:45,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-20 16:15:45,104 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Ended with exit code 0 [2022-11-20 16:15:45,298 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 44 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable89 [2022-11-20 16:15:45,299 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:15:45,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:15:45,299 INFO L85 PathProgramCache]: Analyzing trace with hash -1948147721, now seen corresponding path program 1 times [2022-11-20 16:15:45,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:15:45,299 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [908532127] [2022-11-20 16:15:45,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:15:45,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:15:45,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:15:45,784 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 217 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-20 16:15:45,785 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:15:45,785 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [908532127] [2022-11-20 16:15:45,785 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [908532127] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 16:15:45,785 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1217947582] [2022-11-20 16:15:45,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:15:45,785 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 16:15:45,785 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 [2022-11-20 16:15:45,786 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 16:15:45,789 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Waiting until timeout for monitored process [2022-11-20 16:15:46,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:15:46,152 INFO L263 TraceCheckSpWp]: Trace formula consists of 460 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-20 16:15:46,155 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 16:15:46,278 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 217 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-20 16:15:46,278 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 16:15:46,654 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 217 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-20 16:15:46,654 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1217947582] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 16:15:46,654 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 16:15:46,654 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 34 [2022-11-20 16:15:46,655 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349017771] [2022-11-20 16:15:46,655 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 16:15:46,655 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-11-20 16:15:46,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:15:46,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-11-20 16:15:46,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2022-11-20 16:15:46,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:46,657 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:15:46,657 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 7.5) internal successors, (255), 34 states have internal predecessors, (255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:15:46,657 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:46,658 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:15:46,658 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:15:46,658 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:15:46,658 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:15:46,658 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-11-20 16:15:46,658 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:47,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:47,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:15:47,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:15:47,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:15:47,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:15:47,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-20 16:15:47,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-11-20 16:15:47,674 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Forceful destruction successful, exit code 0 [2022-11-20 16:15:47,874 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90,45 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 16:15:47,874 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:15:47,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:15:47,875 INFO L85 PathProgramCache]: Analyzing trace with hash -181287271, now seen corresponding path program 1 times [2022-11-20 16:15:47,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:15:47,875 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2025019973] [2022-11-20 16:15:47,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:15:47,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:15:47,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 16:15:47,924 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 16:15:47,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 16:15:47,992 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 16:15:47,993 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-20 16:15:47,993 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 7 remaining) [2022-11-20 16:15:47,993 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 7 remaining) [2022-11-20 16:15:47,993 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 7 remaining) [2022-11-20 16:15:47,994 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 7 remaining) [2022-11-20 16:15:47,994 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 7 remaining) [2022-11-20 16:15:47,994 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (1 of 7 remaining) [2022-11-20 16:15:47,994 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK (0 of 7 remaining) [2022-11-20 16:15:47,994 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable91 [2022-11-20 16:15:47,998 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 16:15:47,998 WARN L233 ceAbstractionStarter]: 13 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-20 16:15:47,999 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 14 thread instances. [2022-11-20 16:15:48,042 INFO L144 ThreadInstanceAdder]: Constructed 14 joinOtherThreadTransitions. [2022-11-20 16:15:48,046 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 16:15:48,046 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-11-20 16:15:48,047 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 [2022-11-20 16:15:48,048 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-11-20 16:15:48,052 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (46)] Waiting until timeout for monitored process [2022-11-20 16:15:48,054 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-11-20 16:15:48,055 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2022-11-20 16:15:48,055 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@46174585, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 16:15:48,055 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-11-20 16:15:48,084 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:15:48,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:15:48,085 INFO L85 PathProgramCache]: Analyzing trace with hash 428881902, now seen corresponding path program 1 times [2022-11-20 16:15:48,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:15:48,085 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1196917928] [2022-11-20 16:15:48,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:15:48,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:15:48,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:15:48,096 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:15:48,097 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:15:48,097 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1196917928] [2022-11-20 16:15:48,097 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1196917928] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 16:15:48,097 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 16:15:48,098 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 16:15:48,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1150824407] [2022-11-20 16:15:48,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 16:15:48,098 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-20 16:15:48,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:15:48,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-20 16:15:48,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-20 16:15:48,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:48,100 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:15:48,100 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:15:48,100 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:48,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:48,102 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable92 [2022-11-20 16:15:48,102 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:15:48,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:15:48,103 INFO L85 PathProgramCache]: Analyzing trace with hash 99925539, now seen corresponding path program 1 times [2022-11-20 16:15:48,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:15:48,103 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1051243913] [2022-11-20 16:15:48,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:15:48,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:15:48,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:15:48,130 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:15:48,130 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:15:48,130 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1051243913] [2022-11-20 16:15:48,130 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1051243913] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 16:15:48,131 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 16:15:48,131 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 16:15:48,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1504619718] [2022-11-20 16:15:48,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 16:15:48,131 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 16:15:48,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:15:48,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 16:15:48,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 16:15:48,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:48,133 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:15:48,133 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:15:48,133 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:48,133 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:48,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:48,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:15:48,377 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable93 [2022-11-20 16:15:48,378 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:15:48,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:15:48,378 INFO L85 PathProgramCache]: Analyzing trace with hash 33519596, now seen corresponding path program 1 times [2022-11-20 16:15:48,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:15:48,378 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [860827973] [2022-11-20 16:15:48,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:15:48,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:15:48,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:15:48,429 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:15:48,429 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:15:48,429 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [860827973] [2022-11-20 16:15:48,430 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [860827973] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 16:15:48,430 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1455867052] [2022-11-20 16:15:48,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:15:48,430 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 16:15:48,430 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 [2022-11-20 16:15:48,434 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 16:15:48,455 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Waiting until timeout for monitored process [2022-11-20 16:15:48,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:15:48,825 INFO L263 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 16:15:48,826 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 16:15:48,851 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:15:48,851 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 16:15:48,884 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:15:48,885 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1455867052] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 16:15:48,885 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 16:15:48,885 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-11-20 16:15:48,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2027640264] [2022-11-20 16:15:48,885 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 16:15:48,886 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-20 16:15:48,886 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:15:48,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-20 16:15:48,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-20 16:15:48,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:48,887 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:15:48,887 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.4) internal successors, (74), 10 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:15:48,887 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:48,887 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:15:48,887 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:49,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:49,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:15:49,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:15:49,059 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Forceful destruction successful, exit code 0 [2022-11-20 16:15:49,255 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 47 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable94 [2022-11-20 16:15:49,255 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:15:49,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:15:49,255 INFO L85 PathProgramCache]: Analyzing trace with hash -1597435557, now seen corresponding path program 1 times [2022-11-20 16:15:49,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:15:49,255 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [211832031] [2022-11-20 16:15:49,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:15:49,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:15:49,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:15:49,360 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-20 16:15:49,360 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:15:49,361 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [211832031] [2022-11-20 16:15:49,361 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [211832031] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 16:15:49,361 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 16:15:49,361 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 16:15:49,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1303809999] [2022-11-20 16:15:49,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 16:15:49,362 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 16:15:49,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:15:49,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 16:15:49,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 16:15:49,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:49,363 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:15:49,364 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:15:49,364 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:49,364 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:15:49,364 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:15:49,364 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:49,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:49,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:15:49,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:15:49,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 16:15:49,505 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable95 [2022-11-20 16:15:49,505 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:15:49,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:15:49,505 INFO L85 PathProgramCache]: Analyzing trace with hash 545818066, now seen corresponding path program 1 times [2022-11-20 16:15:49,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:15:49,506 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1036491320] [2022-11-20 16:15:49,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:15:49,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:15:49,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:15:49,550 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-20 16:15:49,550 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:15:49,550 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1036491320] [2022-11-20 16:15:49,550 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1036491320] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 16:15:49,551 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 16:15:49,551 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 16:15:49,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146476682] [2022-11-20 16:15:49,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 16:15:49,551 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 16:15:49,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:15:49,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 16:15:49,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 16:15:49,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:49,553 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:15:49,553 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:15:49,553 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:49,553 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:15:49,554 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:15:49,554 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-11-20 16:15:49,554 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:49,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:49,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:15:49,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:15:49,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:15:49,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:15:49,815 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable96 [2022-11-20 16:15:49,815 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:15:49,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:15:49,815 INFO L85 PathProgramCache]: Analyzing trace with hash -1075044364, now seen corresponding path program 1 times [2022-11-20 16:15:49,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:15:49,815 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [494650537] [2022-11-20 16:15:49,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:15:49,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:15:49,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:15:49,907 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-20 16:15:49,907 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:15:49,907 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [494650537] [2022-11-20 16:15:49,908 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [494650537] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 16:15:49,908 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1712789176] [2022-11-20 16:15:49,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:15:49,908 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 16:15:49,908 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 [2022-11-20 16:15:49,909 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 16:15:49,912 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Waiting until timeout for monitored process [2022-11-20 16:15:50,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:15:50,277 INFO L263 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-20 16:15:50,279 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 16:15:50,376 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-20 16:15:50,376 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 16:15:50,508 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-20 16:15:50,508 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1712789176] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 16:15:50,508 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 16:15:50,508 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 9, 9] total 19 [2022-11-20 16:15:50,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [451253902] [2022-11-20 16:15:50,509 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 16:15:50,509 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-20 16:15:50,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:15:50,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-20 16:15:50,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=263, Unknown=0, NotChecked=0, Total=342 [2022-11-20 16:15:50,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:50,511 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:15:50,511 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 10.578947368421053) internal successors, (201), 19 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:15:50,511 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:50,512 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:15:50,512 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:15:50,512 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:15:50,512 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:15:50,512 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:51,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:51,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:15:51,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:15:51,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:15:51,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:15:51,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-20 16:15:51,198 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Forceful destruction successful, exit code 0 [2022-11-20 16:15:51,392 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable97,48 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 16:15:51,392 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:15:51,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:15:51,393 INFO L85 PathProgramCache]: Analyzing trace with hash 1399304735, now seen corresponding path program 1 times [2022-11-20 16:15:51,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:15:51,393 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [356719858] [2022-11-20 16:15:51,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:15:51,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:15:51,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:15:51,831 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 217 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-20 16:15:51,832 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:15:51,832 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [356719858] [2022-11-20 16:15:51,832 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [356719858] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 16:15:51,832 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [523446812] [2022-11-20 16:15:51,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:15:51,832 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 16:15:51,832 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 [2022-11-20 16:15:51,834 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 16:15:51,836 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Waiting until timeout for monitored process [2022-11-20 16:15:52,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:15:52,241 INFO L263 TraceCheckSpWp]: Trace formula consists of 460 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-20 16:15:52,245 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 16:15:52,391 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 217 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-20 16:15:52,391 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 16:15:52,756 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 217 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-20 16:15:52,757 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [523446812] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 16:15:52,757 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 16:15:52,757 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 34 [2022-11-20 16:15:52,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [131973891] [2022-11-20 16:15:52,757 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 16:15:52,758 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-11-20 16:15:52,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:15:52,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-11-20 16:15:52,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2022-11-20 16:15:52,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:52,763 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:15:52,763 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 7.5) internal successors, (255), 34 states have internal predecessors, (255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:15:52,763 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:52,763 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:15:52,764 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:15:52,764 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:15:52,764 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:15:52,764 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-11-20 16:15:52,764 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:53,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:53,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:15:53,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:15:53,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:15:53,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:15:53,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-20 16:15:53,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-11-20 16:15:53,883 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Forceful destruction successful, exit code 0 [2022-11-20 16:15:54,076 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable98,49 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 16:15:54,076 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:15:54,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:15:54,076 INFO L85 PathProgramCache]: Analyzing trace with hash 965699849, now seen corresponding path program 1 times [2022-11-20 16:15:54,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:15:54,077 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [113818888] [2022-11-20 16:15:54,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:15:54,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:15:54,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 16:15:54,111 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 16:15:54,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 16:15:54,172 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 16:15:54,172 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-20 16:15:54,172 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 7 remaining) [2022-11-20 16:15:54,172 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 7 remaining) [2022-11-20 16:15:54,173 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 7 remaining) [2022-11-20 16:15:54,173 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 7 remaining) [2022-11-20 16:15:54,173 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 7 remaining) [2022-11-20 16:15:54,173 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (1 of 7 remaining) [2022-11-20 16:15:54,173 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK (0 of 7 remaining) [2022-11-20 16:15:54,174 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable99 [2022-11-20 16:15:54,178 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 16:15:54,178 WARN L233 ceAbstractionStarter]: 14 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-20 16:15:54,178 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 15 thread instances. [2022-11-20 16:15:54,245 INFO L144 ThreadInstanceAdder]: Constructed 15 joinOtherThreadTransitions. [2022-11-20 16:15:54,251 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 16:15:54,252 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-11-20 16:15:54,252 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 [2022-11-20 16:15:54,253 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-11-20 16:15:54,262 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-11-20 16:15:54,262 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2022-11-20 16:15:54,262 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@46174585, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 16:15:54,262 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-11-20 16:15:54,271 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (50)] Waiting until timeout for monitored process [2022-11-20 16:15:54,301 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:15:54,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:15:54,302 INFO L85 PathProgramCache]: Analyzing trace with hash -450682386, now seen corresponding path program 1 times [2022-11-20 16:15:54,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:15:54,302 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1589179462] [2022-11-20 16:15:54,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:15:54,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:15:54,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:15:54,318 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:15:54,319 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:15:54,319 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1589179462] [2022-11-20 16:15:54,319 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1589179462] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 16:15:54,319 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 16:15:54,319 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 16:15:54,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [785189963] [2022-11-20 16:15:54,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 16:15:54,320 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-20 16:15:54,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:15:54,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-20 16:15:54,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-20 16:15:54,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:54,321 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:15:54,322 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:15:54,322 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:54,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:54,324 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable100 [2022-11-20 16:15:54,324 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:15:54,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:15:54,325 INFO L85 PathProgramCache]: Analyzing trace with hash 947237027, now seen corresponding path program 1 times [2022-11-20 16:15:54,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:15:54,325 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [210706056] [2022-11-20 16:15:54,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:15:54,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:15:54,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:15:54,352 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:15:54,353 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:15:54,353 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [210706056] [2022-11-20 16:15:54,353 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [210706056] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 16:15:54,353 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 16:15:54,353 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 16:15:54,354 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2085071912] [2022-11-20 16:15:54,354 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 16:15:54,354 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 16:15:54,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:15:54,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 16:15:54,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 16:15:54,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:54,355 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:15:54,355 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:15:54,356 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:54,356 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:54,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:54,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:15:54,602 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable101 [2022-11-20 16:15:54,602 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:15:54,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:15:54,603 INFO L85 PathProgramCache]: Analyzing trace with hash -48664496, now seen corresponding path program 1 times [2022-11-20 16:15:54,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:15:54,603 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1120104073] [2022-11-20 16:15:54,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:15:54,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:15:54,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:15:54,656 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:15:54,656 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:15:54,657 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1120104073] [2022-11-20 16:15:54,657 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1120104073] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 16:15:54,657 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1652560366] [2022-11-20 16:15:54,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:15:54,657 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 16:15:54,658 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 [2022-11-20 16:15:54,661 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 16:15:54,679 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Waiting until timeout for monitored process [2022-11-20 16:15:55,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:15:55,091 INFO L263 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 16:15:55,092 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 16:15:55,117 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:15:55,118 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 16:15:55,159 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:15:55,159 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1652560366] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 16:15:55,159 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 16:15:55,159 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-11-20 16:15:55,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1993888556] [2022-11-20 16:15:55,160 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 16:15:55,160 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-20 16:15:55,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:15:55,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-20 16:15:55,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-20 16:15:55,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:55,162 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:15:55,162 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.4) internal successors, (74), 10 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:15:55,162 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:55,162 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:15:55,162 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:55,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:55,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:15:55,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:15:55,344 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Ended with exit code 0 [2022-11-20 16:15:55,539 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 51 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable102 [2022-11-20 16:15:55,539 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:15:55,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:15:55,540 INFO L85 PathProgramCache]: Analyzing trace with hash 59256455, now seen corresponding path program 1 times [2022-11-20 16:15:55,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:15:55,540 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [800614462] [2022-11-20 16:15:55,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:15:55,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:15:55,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:15:55,628 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-20 16:15:55,628 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:15:55,628 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [800614462] [2022-11-20 16:15:55,628 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [800614462] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 16:15:55,628 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 16:15:55,629 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 16:15:55,629 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548554903] [2022-11-20 16:15:55,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 16:15:55,629 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 16:15:55,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:15:55,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 16:15:55,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 16:15:55,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:55,631 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:15:55,631 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:15:55,631 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:55,631 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:15:55,632 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:15:55,632 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:55,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:55,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:15:55,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:15:55,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 16:15:55,762 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable103 [2022-11-20 16:15:55,763 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:15:55,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:15:55,763 INFO L85 PathProgramCache]: Analyzing trace with hash 1864653930, now seen corresponding path program 1 times [2022-11-20 16:15:55,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:15:55,763 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1282364693] [2022-11-20 16:15:55,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:15:55,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:15:55,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:15:55,798 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-20 16:15:55,799 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:15:55,799 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1282364693] [2022-11-20 16:15:55,799 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1282364693] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 16:15:55,799 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 16:15:55,799 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 16:15:55,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179663439] [2022-11-20 16:15:55,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 16:15:55,800 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 16:15:55,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:15:55,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 16:15:55,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 16:15:55,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:55,801 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:15:55,801 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:15:55,801 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:55,801 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:15:55,801 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:15:55,801 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-11-20 16:15:55,801 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:56,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:56,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:15:56,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:15:56,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:15:56,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:15:56,058 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable104 [2022-11-20 16:15:56,058 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:15:56,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:15:56,058 INFO L85 PathProgramCache]: Analyzing trace with hash -709711965, now seen corresponding path program 1 times [2022-11-20 16:15:56,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:15:56,058 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1923151754] [2022-11-20 16:15:56,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:15:56,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:15:56,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:15:56,154 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-20 16:15:56,154 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:15:56,154 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1923151754] [2022-11-20 16:15:56,155 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1923151754] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 16:15:56,155 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [335013703] [2022-11-20 16:15:56,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:15:56,155 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 16:15:56,155 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 [2022-11-20 16:15:56,159 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 16:15:56,183 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (52)] Waiting until timeout for monitored process [2022-11-20 16:15:56,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:15:56,645 INFO L263 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-20 16:15:56,647 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 16:15:56,743 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-20 16:15:56,743 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 16:15:56,877 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-20 16:15:56,877 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [335013703] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 16:15:56,877 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 16:15:56,877 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 9, 9] total 19 [2022-11-20 16:15:56,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [711062744] [2022-11-20 16:15:56,878 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 16:15:56,878 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-20 16:15:56,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:15:56,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-20 16:15:56,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=263, Unknown=0, NotChecked=0, Total=342 [2022-11-20 16:15:56,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:56,879 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:15:56,880 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 10.578947368421053) internal successors, (201), 19 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:15:56,880 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:56,880 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:15:56,880 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:15:56,880 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:15:56,880 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:15:56,880 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:57,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:57,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:15:57,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:15:57,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:15:57,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:15:57,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-20 16:15:57,567 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (52)] Ended with exit code 0 [2022-11-20 16:15:57,763 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable105,52 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 16:15:57,763 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:15:57,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:15:57,763 INFO L85 PathProgramCache]: Analyzing trace with hash -72244473, now seen corresponding path program 1 times [2022-11-20 16:15:57,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:15:57,763 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1342502309] [2022-11-20 16:15:57,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:15:57,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:15:57,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:15:58,219 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 217 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-20 16:15:58,219 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:15:58,219 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1342502309] [2022-11-20 16:15:58,219 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1342502309] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 16:15:58,219 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [335360247] [2022-11-20 16:15:58,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:15:58,220 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 16:15:58,220 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 [2022-11-20 16:15:58,221 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 16:15:58,243 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (53)] Waiting until timeout for monitored process [2022-11-20 16:15:58,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:15:58,727 INFO L263 TraceCheckSpWp]: Trace formula consists of 460 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-20 16:15:58,728 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 16:15:58,847 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 217 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-20 16:15:58,847 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 16:15:59,205 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 217 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-20 16:15:59,205 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [335360247] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 16:15:59,205 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 16:15:59,205 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 34 [2022-11-20 16:15:59,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [197517666] [2022-11-20 16:15:59,206 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 16:15:59,206 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-11-20 16:15:59,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:15:59,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-11-20 16:15:59,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2022-11-20 16:15:59,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:59,208 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:15:59,208 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 7.5) internal successors, (255), 34 states have internal predecessors, (255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:15:59,209 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:15:59,209 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:15:59,209 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:15:59,209 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:15:59,209 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:15:59,209 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-11-20 16:15:59,209 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:16:00,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:16:00,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:16:00,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:16:00,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:16:00,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:16:00,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-20 16:16:00,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-11-20 16:16:00,773 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (53)] Ended with exit code 0 [2022-11-20 16:16:00,967 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 53 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable106 [2022-11-20 16:16:00,968 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:16:00,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:16:00,968 INFO L85 PathProgramCache]: Analyzing trace with hash 608152147, now seen corresponding path program 1 times [2022-11-20 16:16:00,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:16:00,968 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2070643099] [2022-11-20 16:16:00,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:16:00,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:16:01,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:16:01,977 INFO L134 CoverageAnalysis]: Checked inductivity of 1073 backedges. 0 proven. 1065 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-20 16:16:01,977 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:16:01,977 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2070643099] [2022-11-20 16:16:01,977 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2070643099] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 16:16:01,977 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1059767553] [2022-11-20 16:16:01,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:16:01,978 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 16:16:01,978 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 [2022-11-20 16:16:01,980 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 16:16:02,003 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (54)] Waiting until timeout for monitored process [2022-11-20 16:16:02,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:16:02,522 INFO L263 TraceCheckSpWp]: Trace formula consists of 668 conjuncts, 32 conjunts are in the unsatisfiable core [2022-11-20 16:16:02,527 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 16:16:02,785 INFO L134 CoverageAnalysis]: Checked inductivity of 1073 backedges. 0 proven. 1065 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-20 16:16:02,785 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 16:16:04,034 INFO L134 CoverageAnalysis]: Checked inductivity of 1073 backedges. 0 proven. 1065 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-20 16:16:04,034 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1059767553] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 16:16:04,035 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 16:16:04,035 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33, 33] total 66 [2022-11-20 16:16:04,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1452516934] [2022-11-20 16:16:04,035 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 16:16:04,036 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 66 states [2022-11-20 16:16:04,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:16:04,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2022-11-20 16:16:04,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1122, Invalid=3168, Unknown=0, NotChecked=0, Total=4290 [2022-11-20 16:16:04,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:16:04,039 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:16:04,039 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 66 states, 66 states have (on average 6.287878787878788) internal successors, (415), 66 states have internal predecessors, (415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:16:04,040 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:16:04,040 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:16:04,040 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:16:04,040 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:16:04,040 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:16:04,040 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-11-20 16:16:04,040 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2022-11-20 16:16:04,040 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:16:05,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:16:05,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:16:05,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:16:05,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:16:05,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:16:05,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-20 16:16:05,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-11-20 16:16:05,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-11-20 16:16:05,321 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (54)] Ended with exit code 0 [2022-11-20 16:16:05,515 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 54 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable107 [2022-11-20 16:16:05,515 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:16:05,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:16:05,516 INFO L85 PathProgramCache]: Analyzing trace with hash -63027790, now seen corresponding path program 1 times [2022-11-20 16:16:05,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:16:05,516 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [610739498] [2022-11-20 16:16:05,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:16:05,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:16:05,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 16:16:05,563 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 16:16:05,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 16:16:05,626 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 16:16:05,626 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-20 16:16:05,626 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 7 remaining) [2022-11-20 16:16:05,627 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 7 remaining) [2022-11-20 16:16:05,627 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 7 remaining) [2022-11-20 16:16:05,627 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 7 remaining) [2022-11-20 16:16:05,627 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 7 remaining) [2022-11-20 16:16:05,628 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (1 of 7 remaining) [2022-11-20 16:16:05,628 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK (0 of 7 remaining) [2022-11-20 16:16:05,628 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable108 [2022-11-20 16:16:05,636 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 16:16:05,636 WARN L233 ceAbstractionStarter]: 15 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-20 16:16:05,637 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 16 thread instances. [2022-11-20 16:16:05,705 INFO L144 ThreadInstanceAdder]: Constructed 16 joinOtherThreadTransitions. [2022-11-20 16:16:05,711 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 16:16:05,712 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-11-20 16:16:05,712 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 [2022-11-20 16:16:05,713 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-11-20 16:16:05,725 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-11-20 16:16:05,725 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2022-11-20 16:16:05,726 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@46174585, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 16:16:05,726 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-11-20 16:16:05,742 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (55)] Waiting until timeout for monitored process [2022-11-20 16:16:05,784 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:16:05,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:16:05,785 INFO L85 PathProgramCache]: Analyzing trace with hash 553298926, now seen corresponding path program 1 times [2022-11-20 16:16:05,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:16:05,785 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1454673852] [2022-11-20 16:16:05,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:16:05,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:16:05,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:16:05,809 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:16:05,809 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:16:05,809 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1454673852] [2022-11-20 16:16:05,810 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1454673852] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 16:16:05,810 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 16:16:05,810 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 16:16:05,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [43126709] [2022-11-20 16:16:05,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 16:16:05,811 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-20 16:16:05,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:16:05,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-20 16:16:05,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-20 16:16:05,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:16:05,812 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:16:05,813 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:16:05,813 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:16:05,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:16:05,815 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable109 [2022-11-20 16:16:05,815 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:16:05,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:16:05,816 INFO L85 PathProgramCache]: Analyzing trace with hash -594326749, now seen corresponding path program 1 times [2022-11-20 16:16:05,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:16:05,816 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1439752300] [2022-11-20 16:16:05,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:16:05,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:16:05,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:16:05,848 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:16:05,849 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:16:05,849 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1439752300] [2022-11-20 16:16:05,849 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1439752300] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 16:16:05,849 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 16:16:05,849 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 16:16:05,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1030388692] [2022-11-20 16:16:05,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 16:16:05,850 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 16:16:05,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:16:05,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 16:16:05,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 16:16:05,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:16:05,850 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:16:05,851 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:16:05,851 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:16:05,851 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:16:06,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:16:06,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:16:06,146 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable110 [2022-11-20 16:16:06,146 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:16:06,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:16:06,147 INFO L85 PathProgramCache]: Analyzing trace with hash -230016844, now seen corresponding path program 1 times [2022-11-20 16:16:06,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:16:06,147 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1614693139] [2022-11-20 16:16:06,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:16:06,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:16:06,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:16:06,199 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:16:06,200 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:16:06,200 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1614693139] [2022-11-20 16:16:06,200 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1614693139] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 16:16:06,200 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2134664340] [2022-11-20 16:16:06,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:16:06,201 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 16:16:06,201 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 [2022-11-20 16:16:06,205 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 16:16:06,235 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (56)] Waiting until timeout for monitored process [2022-11-20 16:16:06,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:16:06,759 INFO L263 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 16:16:06,760 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 16:16:06,789 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:16:06,790 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 16:16:06,826 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:16:06,827 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2134664340] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 16:16:06,827 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 16:16:06,827 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-11-20 16:16:06,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [820454221] [2022-11-20 16:16:06,827 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 16:16:06,828 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-20 16:16:06,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:16:06,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-20 16:16:06,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-20 16:16:06,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:16:06,829 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:16:06,830 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.4) internal successors, (74), 10 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:16:06,830 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:16:06,830 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:16:06,830 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:16:07,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:16:07,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:16:07,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:16:07,043 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (56)] Forceful destruction successful, exit code 0 [2022-11-20 16:16:07,242 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable111,56 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 16:16:07,243 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:16:07,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:16:07,243 INFO L85 PathProgramCache]: Analyzing trace with hash 1109158835, now seen corresponding path program 1 times [2022-11-20 16:16:07,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:16:07,243 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1637824495] [2022-11-20 16:16:07,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:16:07,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:16:07,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:16:07,349 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-20 16:16:07,349 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:16:07,349 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1637824495] [2022-11-20 16:16:07,349 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1637824495] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 16:16:07,349 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 16:16:07,350 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 16:16:07,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839743426] [2022-11-20 16:16:07,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 16:16:07,350 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 16:16:07,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:16:07,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 16:16:07,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 16:16:07,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:16:07,352 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:16:07,352 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:16:07,352 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:16:07,352 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:16:07,353 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:16:07,353 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:16:07,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:16:07,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:16:07,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:16:07,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 16:16:07,526 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable112 [2022-11-20 16:16:07,526 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:16:07,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:16:07,527 INFO L85 PathProgramCache]: Analyzing trace with hash 1132393282, now seen corresponding path program 1 times [2022-11-20 16:16:07,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:16:07,527 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030742083] [2022-11-20 16:16:07,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:16:07,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:16:07,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:16:07,571 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-20 16:16:07,571 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:16:07,571 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2030742083] [2022-11-20 16:16:07,571 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2030742083] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 16:16:07,571 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 16:16:07,572 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 16:16:07,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1958915588] [2022-11-20 16:16:07,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 16:16:07,572 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 16:16:07,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:16:07,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 16:16:07,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 16:16:07,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:16:07,574 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:16:07,574 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:16:07,574 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:16:07,574 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:16:07,575 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:16:07,575 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-11-20 16:16:07,575 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:16:07,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:16:07,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:16:07,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:16:07,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:16:07,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:16:07,872 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable113 [2022-11-20 16:16:07,872 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:16:07,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:16:07,873 INFO L85 PathProgramCache]: Analyzing trace with hash 1322287442, now seen corresponding path program 1 times [2022-11-20 16:16:07,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:16:07,873 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [73917161] [2022-11-20 16:16:07,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:16:07,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:16:07,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:16:07,953 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-20 16:16:07,953 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:16:07,953 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [73917161] [2022-11-20 16:16:07,954 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [73917161] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 16:16:07,954 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1670313710] [2022-11-20 16:16:07,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:16:07,954 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 16:16:07,954 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 [2022-11-20 16:16:07,955 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 16:16:07,960 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (57)] Waiting until timeout for monitored process [2022-11-20 16:16:08,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:16:08,413 INFO L263 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-20 16:16:08,415 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 16:16:08,510 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-20 16:16:08,511 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 16:16:08,697 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-20 16:16:08,698 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1670313710] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 16:16:08,698 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 16:16:08,698 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 9, 9] total 19 [2022-11-20 16:16:08,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2033510016] [2022-11-20 16:16:08,698 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 16:16:08,699 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-20 16:16:08,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:16:08,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-20 16:16:08,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=263, Unknown=0, NotChecked=0, Total=342 [2022-11-20 16:16:08,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:16:08,700 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:16:08,700 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 10.578947368421053) internal successors, (201), 19 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:16:08,700 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:16:08,700 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:16:08,700 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:16:08,700 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:16:08,700 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:16:08,700 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:16:09,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:16:09,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:16:09,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:16:09,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:16:09,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:16:09,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-20 16:16:09,461 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (57)] Forceful destruction successful, exit code 0 [2022-11-20 16:16:09,654 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable114,57 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 16:16:09,654 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:16:09,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:16:09,655 INFO L85 PathProgramCache]: Analyzing trace with hash -124967761, now seen corresponding path program 1 times [2022-11-20 16:16:09,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:16:09,655 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1434894493] [2022-11-20 16:16:09,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:16:09,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:16:09,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:16:10,000 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 217 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-20 16:16:10,000 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:16:10,001 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1434894493] [2022-11-20 16:16:10,001 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1434894493] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 16:16:10,001 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [779748802] [2022-11-20 16:16:10,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:16:10,001 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 16:16:10,001 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 [2022-11-20 16:16:10,004 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 16:16:10,036 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (58)] Waiting until timeout for monitored process [2022-11-20 16:16:10,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:16:10,485 INFO L263 TraceCheckSpWp]: Trace formula consists of 460 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-20 16:16:10,487 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 16:16:10,606 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 217 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-20 16:16:10,606 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 16:16:10,925 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 217 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-20 16:16:10,926 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [779748802] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 16:16:10,926 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 16:16:10,926 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 34 [2022-11-20 16:16:10,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1608200632] [2022-11-20 16:16:10,926 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 16:16:10,927 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-11-20 16:16:10,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:16:10,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-11-20 16:16:10,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2022-11-20 16:16:10,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:16:10,929 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:16:10,929 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 7.5) internal successors, (255), 34 states have internal predecessors, (255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:16:10,929 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:16:10,929 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:16:10,929 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:16:10,929 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:16:10,930 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:16:10,930 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-11-20 16:16:10,930 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:16:12,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:16:12,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:16:12,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:16:12,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:16:12,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:16:12,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-20 16:16:12,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-11-20 16:16:12,522 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (58)] Ended with exit code 0 [2022-11-20 16:16:12,719 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable115,58 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 16:16:12,719 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:16:12,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:16:12,719 INFO L85 PathProgramCache]: Analyzing trace with hash 287182811, now seen corresponding path program 1 times [2022-11-20 16:16:12,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:16:12,719 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1531516700] [2022-11-20 16:16:12,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:16:12,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:16:12,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:16:13,547 INFO L134 CoverageAnalysis]: Checked inductivity of 1073 backedges. 0 proven. 1065 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-20 16:16:13,547 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:16:13,547 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1531516700] [2022-11-20 16:16:13,547 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1531516700] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 16:16:13,548 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [174338485] [2022-11-20 16:16:13,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:16:13,548 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 16:16:13,548 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 [2022-11-20 16:16:13,559 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 16:16:13,562 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (59)] Waiting until timeout for monitored process [2022-11-20 16:16:14,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:16:14,067 INFO L263 TraceCheckSpWp]: Trace formula consists of 668 conjuncts, 32 conjunts are in the unsatisfiable core [2022-11-20 16:16:14,071 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 16:16:14,293 INFO L134 CoverageAnalysis]: Checked inductivity of 1073 backedges. 0 proven. 1065 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-20 16:16:14,293 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 16:16:15,309 INFO L134 CoverageAnalysis]: Checked inductivity of 1073 backedges. 0 proven. 1065 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-20 16:16:15,309 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [174338485] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 16:16:15,309 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 16:16:15,309 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33, 33] total 66 [2022-11-20 16:16:15,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1991661390] [2022-11-20 16:16:15,310 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 16:16:15,310 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 66 states [2022-11-20 16:16:15,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:16:15,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2022-11-20 16:16:15,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1122, Invalid=3168, Unknown=0, NotChecked=0, Total=4290 [2022-11-20 16:16:15,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:16:15,314 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:16:15,314 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 66 states, 66 states have (on average 6.287878787878788) internal successors, (415), 66 states have internal predecessors, (415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:16:15,314 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:16:15,314 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:16:15,314 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:16:15,315 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:16:15,315 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:16:15,315 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-11-20 16:16:15,315 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2022-11-20 16:16:15,315 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:16:16,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:16:16,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:16:16,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:16:16,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:16:16,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:16:16,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-20 16:16:16,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-11-20 16:16:16,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-11-20 16:16:16,652 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (59)] Ended with exit code 0 [2022-11-20 16:16:16,846 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable116,59 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 16:16:16,846 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:16:16,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:16:16,847 INFO L85 PathProgramCache]: Analyzing trace with hash -863474092, now seen corresponding path program 1 times [2022-11-20 16:16:16,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:16:16,847 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1119390681] [2022-11-20 16:16:16,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:16:16,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:16:16,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 16:16:16,886 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 16:16:16,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 16:16:16,945 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 16:16:16,945 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-20 16:16:16,945 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 7 remaining) [2022-11-20 16:16:16,946 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 7 remaining) [2022-11-20 16:16:16,946 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 7 remaining) [2022-11-20 16:16:16,946 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 7 remaining) [2022-11-20 16:16:16,946 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 7 remaining) [2022-11-20 16:16:16,946 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (1 of 7 remaining) [2022-11-20 16:16:16,946 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK (0 of 7 remaining) [2022-11-20 16:16:16,947 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable117 [2022-11-20 16:16:16,950 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 16:16:16,950 WARN L233 ceAbstractionStarter]: 16 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-20 16:16:16,951 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 17 thread instances. [2022-11-20 16:16:17,000 INFO L144 ThreadInstanceAdder]: Constructed 17 joinOtherThreadTransitions. [2022-11-20 16:16:17,004 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 16:16:17,004 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-11-20 16:16:17,004 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 [2022-11-20 16:16:17,005 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-11-20 16:16:17,017 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-11-20 16:16:17,017 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2022-11-20 16:16:17,017 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@46174585, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 16:16:17,018 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-11-20 16:16:17,035 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (60)] Waiting until timeout for monitored process [2022-11-20 16:16:17,043 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:16:17,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:16:17,044 INFO L85 PathProgramCache]: Analyzing trace with hash -854141458, now seen corresponding path program 1 times [2022-11-20 16:16:17,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:16:17,044 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1688454307] [2022-11-20 16:16:17,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:16:17,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:16:17,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:16:17,055 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:16:17,055 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:16:17,055 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1688454307] [2022-11-20 16:16:17,055 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1688454307] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 16:16:17,055 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 16:16:17,055 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 16:16:17,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184454164] [2022-11-20 16:16:17,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 16:16:17,056 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-20 16:16:17,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:16:17,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-20 16:16:17,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-20 16:16:17,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:16:17,058 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:16:17,058 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:16:17,058 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:16:17,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:16:17,059 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable118 [2022-11-20 16:16:17,060 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:16:17,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:16:17,060 INFO L85 PathProgramCache]: Analyzing trace with hash -229798493, now seen corresponding path program 1 times [2022-11-20 16:16:17,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:16:17,060 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [520588778] [2022-11-20 16:16:17,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:16:17,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:16:17,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:16:17,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:16:17,090 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:16:17,090 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [520588778] [2022-11-20 16:16:17,090 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [520588778] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 16:16:17,091 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 16:16:17,091 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 16:16:17,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41252846] [2022-11-20 16:16:17,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 16:16:17,091 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 16:16:17,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:16:17,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 16:16:17,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 16:16:17,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:16:17,093 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:16:17,093 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:16:17,093 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:16:17,093 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:16:17,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:16:17,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:16:17,427 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable119 [2022-11-20 16:16:17,427 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:16:17,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:16:17,428 INFO L85 PathProgramCache]: Analyzing trace with hash -510537448, now seen corresponding path program 1 times [2022-11-20 16:16:17,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:16:17,428 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1131817125] [2022-11-20 16:16:17,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:16:17,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:16:17,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:16:17,478 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:16:17,478 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:16:17,478 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1131817125] [2022-11-20 16:16:17,478 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1131817125] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 16:16:17,478 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [591130401] [2022-11-20 16:16:17,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:16:17,479 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 16:16:17,479 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 [2022-11-20 16:16:17,483 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 16:16:17,503 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (61)] Waiting until timeout for monitored process [2022-11-20 16:16:17,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:16:17,928 INFO L263 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 16:16:17,929 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 16:16:17,952 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:16:17,952 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 16:16:17,984 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:16:17,984 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [591130401] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 16:16:17,984 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 16:16:17,984 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-11-20 16:16:17,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1138320578] [2022-11-20 16:16:17,984 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 16:16:17,984 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-20 16:16:17,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:16:17,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-20 16:16:17,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-20 16:16:17,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:16:17,985 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:16:17,985 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.4) internal successors, (74), 10 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:16:17,986 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:16:17,986 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:16:17,986 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:16:18,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:16:18,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:16:18,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:16:18,175 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (61)] Forceful destruction successful, exit code 0 [2022-11-20 16:16:18,369 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable120,61 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 16:16:18,369 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:16:18,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:16:18,369 INFO L85 PathProgramCache]: Analyzing trace with hash 1552271583, now seen corresponding path program 1 times [2022-11-20 16:16:18,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:16:18,369 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1201958715] [2022-11-20 16:16:18,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:16:18,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:16:18,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:16:18,429 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-20 16:16:18,429 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:16:18,429 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1201958715] [2022-11-20 16:16:18,429 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1201958715] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 16:16:18,429 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 16:16:18,430 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 16:16:18,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1538523274] [2022-11-20 16:16:18,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 16:16:18,430 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 16:16:18,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:16:18,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 16:16:18,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 16:16:18,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:16:18,431 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:16:18,431 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:16:18,431 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:16:18,431 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:16:18,432 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:16:18,432 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:16:18,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:16:18,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:16:18,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:16:18,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 16:16:18,579 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable121 [2022-11-20 16:16:18,579 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:16:18,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:16:18,580 INFO L85 PathProgramCache]: Analyzing trace with hash -1650963878, now seen corresponding path program 1 times [2022-11-20 16:16:18,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:16:18,580 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [811993401] [2022-11-20 16:16:18,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:16:18,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:16:18,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:16:18,608 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-20 16:16:18,608 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:16:18,609 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [811993401] [2022-11-20 16:16:18,609 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [811993401] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 16:16:18,609 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 16:16:18,609 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 16:16:18,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924477929] [2022-11-20 16:16:18,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 16:16:18,610 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 16:16:18,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:16:18,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 16:16:18,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 16:16:18,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:16:18,611 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:16:18,611 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:16:18,611 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:16:18,611 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:16:18,611 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:16:18,611 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-11-20 16:16:18,611 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:16:18,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:16:18,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:16:18,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:16:18,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:16:18,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:16:18,892 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable122 [2022-11-20 16:16:18,892 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:16:18,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:16:18,892 INFO L85 PathProgramCache]: Analyzing trace with hash -2076726527, now seen corresponding path program 1 times [2022-11-20 16:16:18,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:16:18,892 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1959067184] [2022-11-20 16:16:18,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:16:18,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:16:18,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:16:19,037 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-20 16:16:19,037 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:16:19,037 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1959067184] [2022-11-20 16:16:19,037 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1959067184] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 16:16:19,038 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1235297654] [2022-11-20 16:16:19,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:16:19,038 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 16:16:19,038 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 [2022-11-20 16:16:19,039 INFO L229 MonitoredProcess]: Starting monitored process 62 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 16:16:19,042 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (62)] Waiting until timeout for monitored process [2022-11-20 16:16:19,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:16:19,525 INFO L263 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-20 16:16:19,527 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 16:16:19,612 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-20 16:16:19,612 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 16:16:19,728 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-20 16:16:19,728 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1235297654] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 16:16:19,728 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 16:16:19,729 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 9, 9] total 19 [2022-11-20 16:16:19,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [836756392] [2022-11-20 16:16:19,729 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 16:16:19,729 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-20 16:16:19,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:16:19,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-20 16:16:19,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=263, Unknown=0, NotChecked=0, Total=342 [2022-11-20 16:16:19,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:16:19,731 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:16:19,731 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 10.578947368421053) internal successors, (201), 19 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:16:19,731 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:16:19,731 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:16:19,731 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:16:19,731 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:16:19,731 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:16:19,731 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:16:20,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:16:20,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:16:20,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:16:20,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:16:20,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:16:20,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-20 16:16:20,562 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (62)] Forceful destruction successful, exit code 0 [2022-11-20 16:16:20,756 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 62 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable123 [2022-11-20 16:16:20,756 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:16:20,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:16:20,757 INFO L85 PathProgramCache]: Analyzing trace with hash -1468532201, now seen corresponding path program 1 times [2022-11-20 16:16:20,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:16:20,757 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [795158402] [2022-11-20 16:16:20,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:16:20,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:16:20,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:16:21,100 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 217 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-20 16:16:21,101 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:16:21,101 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [795158402] [2022-11-20 16:16:21,101 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [795158402] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 16:16:21,101 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1221157696] [2022-11-20 16:16:21,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:16:21,102 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 16:16:21,102 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 [2022-11-20 16:16:21,103 INFO L229 MonitoredProcess]: Starting monitored process 63 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 16:16:21,132 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (63)] Waiting until timeout for monitored process [2022-11-20 16:16:21,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:16:21,707 INFO L263 TraceCheckSpWp]: Trace formula consists of 460 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-20 16:16:21,710 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 16:16:21,828 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 217 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-20 16:16:21,829 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 16:16:22,190 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 217 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-20 16:16:22,190 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1221157696] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 16:16:22,190 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 16:16:22,190 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 34 [2022-11-20 16:16:22,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806494888] [2022-11-20 16:16:22,191 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 16:16:22,191 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-11-20 16:16:22,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:16:22,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-11-20 16:16:22,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2022-11-20 16:16:22,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:16:22,192 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:16:22,192 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 7.5) internal successors, (255), 34 states have internal predecessors, (255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:16:22,193 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:16:22,193 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:16:22,193 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:16:22,193 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:16:22,193 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:16:22,193 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-11-20 16:16:22,193 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:16:23,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:16:23,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:16:23,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:16:23,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:16:23,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:16:23,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-20 16:16:23,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-11-20 16:16:23,975 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (63)] Ended with exit code 0 [2022-11-20 16:16:24,169 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 63 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable124 [2022-11-20 16:16:24,169 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:16:24,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:16:24,170 INFO L85 PathProgramCache]: Analyzing trace with hash 1821948195, now seen corresponding path program 1 times [2022-11-20 16:16:24,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:16:24,170 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1859095591] [2022-11-20 16:16:24,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:16:24,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:16:24,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:16:25,011 INFO L134 CoverageAnalysis]: Checked inductivity of 1073 backedges. 0 proven. 1065 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-20 16:16:25,011 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:16:25,011 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1859095591] [2022-11-20 16:16:25,011 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1859095591] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 16:16:25,011 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [260662511] [2022-11-20 16:16:25,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:16:25,012 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 16:16:25,012 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 [2022-11-20 16:16:25,013 INFO L229 MonitoredProcess]: Starting monitored process 64 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 16:16:25,016 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (64)] Waiting until timeout for monitored process [2022-11-20 16:16:25,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:16:25,556 INFO L263 TraceCheckSpWp]: Trace formula consists of 668 conjuncts, 32 conjunts are in the unsatisfiable core [2022-11-20 16:16:25,560 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 16:16:25,781 INFO L134 CoverageAnalysis]: Checked inductivity of 1073 backedges. 0 proven. 1065 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-20 16:16:25,781 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 16:16:26,916 INFO L134 CoverageAnalysis]: Checked inductivity of 1073 backedges. 0 proven. 1065 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-20 16:16:26,916 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [260662511] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 16:16:26,916 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 16:16:26,917 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33, 33] total 66 [2022-11-20 16:16:26,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [416762959] [2022-11-20 16:16:26,917 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 16:16:26,918 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 66 states [2022-11-20 16:16:26,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:16:26,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2022-11-20 16:16:26,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1122, Invalid=3168, Unknown=0, NotChecked=0, Total=4290 [2022-11-20 16:16:26,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:16:26,920 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:16:26,920 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 66 states, 66 states have (on average 6.287878787878788) internal successors, (415), 66 states have internal predecessors, (415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:16:26,920 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:16:26,920 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:16:26,920 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:16:26,921 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:16:26,921 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:16:26,921 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-11-20 16:16:26,921 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2022-11-20 16:16:26,921 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:16:28,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:16:28,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:16:28,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:16:28,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:16:28,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:16:28,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-20 16:16:28,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-11-20 16:16:28,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-11-20 16:16:28,545 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (64)] Ended with exit code 0 [2022-11-20 16:16:28,739 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 64 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable125 [2022-11-20 16:16:28,739 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:16:28,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:16:28,739 INFO L85 PathProgramCache]: Analyzing trace with hash -1500609361, now seen corresponding path program 1 times [2022-11-20 16:16:28,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:16:28,739 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [667618268] [2022-11-20 16:16:28,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:16:28,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:16:28,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 16:16:28,778 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 16:16:28,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 16:16:28,838 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 16:16:28,838 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-20 16:16:28,838 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 7 remaining) [2022-11-20 16:16:28,838 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 7 remaining) [2022-11-20 16:16:28,839 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 7 remaining) [2022-11-20 16:16:28,839 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 7 remaining) [2022-11-20 16:16:28,839 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 7 remaining) [2022-11-20 16:16:28,839 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (1 of 7 remaining) [2022-11-20 16:16:28,839 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK (0 of 7 remaining) [2022-11-20 16:16:28,840 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable126 [2022-11-20 16:16:28,843 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 16:16:28,843 WARN L233 ceAbstractionStarter]: 17 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-20 16:16:28,843 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 18 thread instances. [2022-11-20 16:16:28,897 INFO L144 ThreadInstanceAdder]: Constructed 18 joinOtherThreadTransitions. [2022-11-20 16:16:28,901 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 16:16:28,901 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-11-20 16:16:28,902 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 [2022-11-20 16:16:28,903 INFO L229 MonitoredProcess]: Starting monitored process 65 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-11-20 16:16:28,914 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-11-20 16:16:28,914 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2022-11-20 16:16:28,914 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@46174585, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 16:16:28,914 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-11-20 16:16:28,935 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (65)] Waiting until timeout for monitored process [2022-11-20 16:16:28,972 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:16:28,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:16:28,973 INFO L85 PathProgramCache]: Analyzing trace with hash -378036242, now seen corresponding path program 1 times [2022-11-20 16:16:28,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:16:28,973 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1165977980] [2022-11-20 16:16:28,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:16:28,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:16:28,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:16:28,991 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:16:28,991 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:16:28,991 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1165977980] [2022-11-20 16:16:28,991 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1165977980] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 16:16:28,992 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 16:16:28,992 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 16:16:28,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [359680051] [2022-11-20 16:16:28,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 16:16:28,993 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-20 16:16:28,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:16:28,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-20 16:16:28,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-20 16:16:28,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:16:29,002 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:16:29,003 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:16:29,003 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:16:29,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:16:29,006 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable127 [2022-11-20 16:16:29,006 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:16:29,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:16:29,006 INFO L85 PathProgramCache]: Analyzing trace with hash 2040821795, now seen corresponding path program 1 times [2022-11-20 16:16:29,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:16:29,007 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [408213915] [2022-11-20 16:16:29,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:16:29,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:16:29,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:16:29,033 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:16:29,034 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:16:29,034 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [408213915] [2022-11-20 16:16:29,034 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [408213915] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 16:16:29,034 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 16:16:29,034 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 16:16:29,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1284915120] [2022-11-20 16:16:29,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 16:16:29,035 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 16:16:29,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:16:29,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 16:16:29,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 16:16:29,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:16:29,037 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:16:29,037 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:16:29,037 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:16:29,037 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:16:29,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:16:29,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:16:29,324 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable128 [2022-11-20 16:16:29,325 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:16:29,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:16:29,325 INFO L85 PathProgramCache]: Analyzing trace with hash -890226308, now seen corresponding path program 1 times [2022-11-20 16:16:29,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:16:29,325 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [703361889] [2022-11-20 16:16:29,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:16:29,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:16:29,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:16:29,376 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:16:29,377 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:16:29,377 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [703361889] [2022-11-20 16:16:29,377 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [703361889] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 16:16:29,377 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1484767484] [2022-11-20 16:16:29,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:16:29,378 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 16:16:29,378 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 [2022-11-20 16:16:29,383 INFO L229 MonitoredProcess]: Starting monitored process 66 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 16:16:29,403 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (66)] Waiting until timeout for monitored process [2022-11-20 16:16:29,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:16:29,954 INFO L263 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 16:16:29,955 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 16:16:29,979 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:16:29,979 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 16:16:30,012 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:16:30,012 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1484767484] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 16:16:30,012 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 16:16:30,013 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-11-20 16:16:30,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696009600] [2022-11-20 16:16:30,013 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 16:16:30,013 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-20 16:16:30,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:16:30,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-20 16:16:30,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-20 16:16:30,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:16:30,014 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:16:30,014 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.4) internal successors, (74), 10 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:16:30,014 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:16:30,014 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:16:30,014 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:16:30,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:16:30,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:16:30,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:16:30,230 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (66)] Forceful destruction successful, exit code 0 [2022-11-20 16:16:30,424 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 66 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable129 [2022-11-20 16:16:30,424 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:16:30,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:16:30,425 INFO L85 PathProgramCache]: Analyzing trace with hash 1388594699, now seen corresponding path program 1 times [2022-11-20 16:16:30,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:16:30,425 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1114024118] [2022-11-20 16:16:30,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:16:30,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:16:30,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:16:30,499 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-20 16:16:30,499 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:16:30,499 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1114024118] [2022-11-20 16:16:30,499 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1114024118] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 16:16:30,499 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 16:16:30,500 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 16:16:30,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286006041] [2022-11-20 16:16:30,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 16:16:30,500 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 16:16:30,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:16:30,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 16:16:30,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 16:16:30,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:16:30,501 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:16:30,501 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:16:30,501 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:16:30,501 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:16:30,501 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:16:30,502 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:16:30,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:16:30,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:16:30,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:16:30,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 16:16:30,661 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable130 [2022-11-20 16:16:30,661 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:16:30,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:16:30,661 INFO L85 PathProgramCache]: Analyzing trace with hash 2104517042, now seen corresponding path program 1 times [2022-11-20 16:16:30,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:16:30,661 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [994939741] [2022-11-20 16:16:30,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:16:30,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:16:30,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:16:30,704 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-20 16:16:30,704 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:16:30,704 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [994939741] [2022-11-20 16:16:30,704 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [994939741] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 16:16:30,705 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 16:16:30,705 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 16:16:30,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [3347483] [2022-11-20 16:16:30,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 16:16:30,706 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 16:16:30,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:16:30,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 16:16:30,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 16:16:30,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:16:30,707 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:16:30,707 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:16:30,707 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:16:30,708 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:16:30,708 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:16:30,708 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-11-20 16:16:30,708 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:16:31,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:16:31,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:16:31,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:16:31,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:16:31,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:16:31,032 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable131 [2022-11-20 16:16:31,033 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:16:31,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:16:31,033 INFO L85 PathProgramCache]: Analyzing trace with hash -633296848, now seen corresponding path program 1 times [2022-11-20 16:16:31,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:16:31,034 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [778489199] [2022-11-20 16:16:31,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:16:31,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:16:31,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:16:31,107 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-20 16:16:31,108 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:16:31,108 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [778489199] [2022-11-20 16:16:31,108 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [778489199] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 16:16:31,108 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1199244834] [2022-11-20 16:16:31,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:16:31,109 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 16:16:31,109 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 [2022-11-20 16:16:31,110 INFO L229 MonitoredProcess]: Starting monitored process 67 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 16:16:31,123 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (67)] Waiting until timeout for monitored process [2022-11-20 16:16:31,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:16:31,640 INFO L263 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-20 16:16:31,642 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 16:16:31,723 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-20 16:16:31,724 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 16:16:31,870 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-20 16:16:31,871 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1199244834] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 16:16:31,871 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 16:16:31,871 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 9, 9] total 19 [2022-11-20 16:16:31,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219830482] [2022-11-20 16:16:31,871 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 16:16:31,872 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-20 16:16:31,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:16:31,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-20 16:16:31,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=263, Unknown=0, NotChecked=0, Total=342 [2022-11-20 16:16:31,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:16:31,873 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:16:31,873 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 10.578947368421053) internal successors, (201), 19 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:16:31,873 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:16:31,873 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:16:31,873 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:16:31,873 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:16:31,874 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:16:31,874 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:16:32,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:16:32,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:16:32,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:16:32,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:16:32,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:16:32,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-20 16:16:32,618 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (67)] Ended with exit code 0 [2022-11-20 16:16:32,812 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable132,67 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 16:16:32,812 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:16:32,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:16:32,812 INFO L85 PathProgramCache]: Analyzing trace with hash 1611786687, now seen corresponding path program 1 times [2022-11-20 16:16:32,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:16:32,813 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [350078228] [2022-11-20 16:16:32,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:16:32,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:16:32,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:16:33,151 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 217 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-20 16:16:33,151 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:16:33,151 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [350078228] [2022-11-20 16:16:33,151 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [350078228] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 16:16:33,151 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [750416789] [2022-11-20 16:16:33,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:16:33,151 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 16:16:33,151 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 [2022-11-20 16:16:33,154 INFO L229 MonitoredProcess]: Starting monitored process 68 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 16:16:33,156 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (68)] Waiting until timeout for monitored process [2022-11-20 16:16:33,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:16:33,710 INFO L263 TraceCheckSpWp]: Trace formula consists of 460 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-20 16:16:33,711 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 16:16:33,812 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 217 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-20 16:16:33,812 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 16:16:34,114 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 217 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-20 16:16:34,115 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [750416789] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 16:16:34,115 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 16:16:34,115 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 34 [2022-11-20 16:16:34,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [578295872] [2022-11-20 16:16:34,115 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 16:16:34,116 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-11-20 16:16:34,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:16:34,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-11-20 16:16:34,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2022-11-20 16:16:34,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:16:34,117 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:16:34,117 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 7.5) internal successors, (255), 34 states have internal predecessors, (255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:16:34,117 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:16:34,118 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:16:34,118 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:16:34,118 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:16:34,118 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:16:34,118 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-11-20 16:16:34,118 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:16:35,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:16:35,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:16:35,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:16:35,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:16:35,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:16:35,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-20 16:16:35,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-11-20 16:16:35,831 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (68)] Forceful destruction successful, exit code 0 [2022-11-20 16:16:36,024 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 68 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable133 [2022-11-20 16:16:36,024 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:16:36,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:16:36,025 INFO L85 PathProgramCache]: Analyzing trace with hash -1252499029, now seen corresponding path program 1 times [2022-11-20 16:16:36,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:16:36,025 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1350626688] [2022-11-20 16:16:36,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:16:36,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:16:36,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:16:37,336 INFO L134 CoverageAnalysis]: Checked inductivity of 1073 backedges. 0 proven. 1065 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-20 16:16:37,336 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:16:37,336 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1350626688] [2022-11-20 16:16:37,337 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1350626688] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 16:16:37,337 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1669160110] [2022-11-20 16:16:37,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:16:37,337 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 16:16:37,337 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 [2022-11-20 16:16:37,338 INFO L229 MonitoredProcess]: Starting monitored process 69 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 16:16:37,341 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (69)] Waiting until timeout for monitored process [2022-11-20 16:16:37,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:16:37,992 INFO L263 TraceCheckSpWp]: Trace formula consists of 668 conjuncts, 32 conjunts are in the unsatisfiable core [2022-11-20 16:16:37,996 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 16:16:38,240 INFO L134 CoverageAnalysis]: Checked inductivity of 1073 backedges. 0 proven. 1065 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-20 16:16:38,240 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 16:16:39,330 INFO L134 CoverageAnalysis]: Checked inductivity of 1073 backedges. 0 proven. 1065 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-20 16:16:39,330 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1669160110] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 16:16:39,330 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 16:16:39,330 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33, 33] total 66 [2022-11-20 16:16:39,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [294615666] [2022-11-20 16:16:39,330 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 16:16:39,331 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 66 states [2022-11-20 16:16:39,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:16:39,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2022-11-20 16:16:39,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1122, Invalid=3168, Unknown=0, NotChecked=0, Total=4290 [2022-11-20 16:16:39,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:16:39,332 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:16:39,333 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 66 states, 66 states have (on average 6.287878787878788) internal successors, (415), 66 states have internal predecessors, (415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:16:39,333 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:16:39,333 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:16:39,333 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:16:39,333 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:16:39,333 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:16:39,333 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-11-20 16:16:39,333 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2022-11-20 16:16:39,333 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:16:41,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:16:41,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:16:41,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:16:41,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:16:41,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:16:41,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-20 16:16:41,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-11-20 16:16:41,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2022-11-20 16:16:41,199 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (69)] Forceful destruction successful, exit code 0 [2022-11-20 16:16:41,390 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 69 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable134 [2022-11-20 16:16:41,391 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:16:41,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:16:41,391 INFO L85 PathProgramCache]: Analyzing trace with hash -1297892733, now seen corresponding path program 1 times [2022-11-20 16:16:41,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:16:41,391 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1516287709] [2022-11-20 16:16:41,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:16:41,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:16:41,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 16:16:41,425 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 16:16:41,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 16:16:41,493 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 16:16:41,493 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-20 16:16:41,494 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 7 remaining) [2022-11-20 16:16:41,494 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 7 remaining) [2022-11-20 16:16:41,494 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 7 remaining) [2022-11-20 16:16:41,494 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 7 remaining) [2022-11-20 16:16:41,494 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 7 remaining) [2022-11-20 16:16:41,495 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (1 of 7 remaining) [2022-11-20 16:16:41,495 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK (0 of 7 remaining) [2022-11-20 16:16:41,495 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable135 [2022-11-20 16:16:41,499 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 16:16:41,500 WARN L233 ceAbstractionStarter]: 18 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-20 16:16:41,500 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 19 thread instances. [2022-11-20 16:16:41,563 INFO L144 ThreadInstanceAdder]: Constructed 19 joinOtherThreadTransitions. [2022-11-20 16:16:41,568 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 16:16:41,569 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-11-20 16:16:41,569 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 [2022-11-20 16:16:41,570 INFO L229 MonitoredProcess]: Starting monitored process 70 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-11-20 16:16:41,581 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-11-20 16:16:41,581 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2022-11-20 16:16:41,582 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@46174585, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 16:16:41,582 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-11-20 16:16:41,606 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (70)] Waiting until timeout for monitored process [2022-11-20 16:16:41,640 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:16:41,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:16:41,641 INFO L85 PathProgramCache]: Analyzing trace with hash 1981614574, now seen corresponding path program 1 times [2022-11-20 16:16:41,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:16:41,641 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [228808974] [2022-11-20 16:16:41,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:16:41,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:16:41,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:16:41,669 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:16:41,670 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:16:41,670 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [228808974] [2022-11-20 16:16:41,670 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [228808974] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 16:16:41,670 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 16:16:41,672 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 16:16:41,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1621335920] [2022-11-20 16:16:41,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 16:16:41,673 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-20 16:16:41,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:16:41,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-20 16:16:41,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-20 16:16:41,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:16:41,675 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:16:41,675 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:16:41,675 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:16:41,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:16:41,677 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable136 [2022-11-20 16:16:41,677 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:16:41,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:16:41,678 INFO L85 PathProgramCache]: Analyzing trace with hash 1922566819, now seen corresponding path program 1 times [2022-11-20 16:16:41,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:16:41,678 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1566358641] [2022-11-20 16:16:41,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:16:41,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:16:41,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:16:41,708 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:16:41,709 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:16:41,709 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1566358641] [2022-11-20 16:16:41,709 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1566358641] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 16:16:41,709 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 16:16:41,710 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 16:16:41,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553685003] [2022-11-20 16:16:41,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 16:16:41,711 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 16:16:41,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:16:41,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 16:16:41,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 16:16:41,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:16:41,712 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:16:41,712 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:16:41,712 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:16:41,712 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:16:42,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:16:42,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:16:42,113 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable137 [2022-11-20 16:16:42,113 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:16:42,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:16:42,114 INFO L85 PathProgramCache]: Analyzing trace with hash -1369083424, now seen corresponding path program 1 times [2022-11-20 16:16:42,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:16:42,114 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [369071078] [2022-11-20 16:16:42,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:16:42,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:16:42,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:16:42,149 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:16:42,149 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:16:42,149 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [369071078] [2022-11-20 16:16:42,149 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [369071078] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 16:16:42,149 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [735408500] [2022-11-20 16:16:42,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:16:42,149 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 16:16:42,150 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 [2022-11-20 16:16:42,151 INFO L229 MonitoredProcess]: Starting monitored process 71 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 16:16:42,153 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (71)] Waiting until timeout for monitored process [2022-11-20 16:16:42,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:16:42,692 INFO L263 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 16:16:42,693 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 16:16:42,717 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:16:42,717 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 16:16:42,748 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:16:42,748 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [735408500] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 16:16:42,748 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 16:16:42,748 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-11-20 16:16:42,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753833049] [2022-11-20 16:16:42,749 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 16:16:42,749 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-20 16:16:42,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:16:42,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-20 16:16:42,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-20 16:16:42,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:16:42,750 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:16:42,750 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.4) internal successors, (74), 10 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:16:42,750 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:16:42,750 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:16:42,750 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:16:42,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:16:42,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:16:42,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:16:42,959 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (71)] Forceful destruction successful, exit code 0 [2022-11-20 16:16:43,153 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 71 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable138 [2022-11-20 16:16:43,153 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:16:43,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:16:43,153 INFO L85 PathProgramCache]: Analyzing trace with hash 618128183, now seen corresponding path program 1 times [2022-11-20 16:16:43,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:16:43,154 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2132923940] [2022-11-20 16:16:43,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:16:43,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:16:43,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:16:43,213 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-20 16:16:43,213 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:16:43,214 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2132923940] [2022-11-20 16:16:43,214 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2132923940] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 16:16:43,214 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 16:16:43,214 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 16:16:43,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272896553] [2022-11-20 16:16:43,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 16:16:43,215 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 16:16:43,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:16:43,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 16:16:43,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 16:16:43,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:16:43,216 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:16:43,216 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:16:43,216 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:16:43,216 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:16:43,216 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:16:43,217 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:16:43,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:16:43,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:16:43,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:16:43,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 16:16:43,391 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable139 [2022-11-20 16:16:43,391 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:16:43,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:16:43,392 INFO L85 PathProgramCache]: Analyzing trace with hash -486065846, now seen corresponding path program 1 times [2022-11-20 16:16:43,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:16:43,392 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [998994321] [2022-11-20 16:16:43,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:16:43,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:16:43,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:16:43,434 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-20 16:16:43,434 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:16:43,434 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [998994321] [2022-11-20 16:16:43,434 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [998994321] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 16:16:43,434 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 16:16:43,434 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 16:16:43,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1965433057] [2022-11-20 16:16:43,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 16:16:43,435 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 16:16:43,435 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:16:43,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 16:16:43,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 16:16:43,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:16:43,436 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:16:43,436 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:16:43,437 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:16:43,437 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:16:43,437 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:16:43,437 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-11-20 16:16:43,437 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:16:43,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:16:43,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:16:43,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:16:43,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:16:43,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:16:43,749 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable140 [2022-11-20 16:16:43,749 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:16:43,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:16:43,749 INFO L85 PathProgramCache]: Analyzing trace with hash 944397407, now seen corresponding path program 1 times [2022-11-20 16:16:43,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:16:43,749 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [644050670] [2022-11-20 16:16:43,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:16:43,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:16:43,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:16:43,833 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-20 16:16:43,833 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:16:43,833 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [644050670] [2022-11-20 16:16:43,833 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [644050670] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 16:16:43,833 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [714169576] [2022-11-20 16:16:43,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:16:43,834 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 16:16:43,834 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 [2022-11-20 16:16:43,835 INFO L229 MonitoredProcess]: Starting monitored process 72 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 16:16:43,837 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (72)] Waiting until timeout for monitored process [2022-11-20 16:16:44,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:16:44,391 INFO L263 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-20 16:16:44,392 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 16:16:44,501 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-20 16:16:44,502 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 16:16:44,635 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-20 16:16:44,635 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [714169576] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 16:16:44,635 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 16:16:44,635 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 9, 9] total 19 [2022-11-20 16:16:44,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54104431] [2022-11-20 16:16:44,636 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 16:16:44,636 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-20 16:16:44,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:16:44,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-20 16:16:44,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=263, Unknown=0, NotChecked=0, Total=342 [2022-11-20 16:16:44,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:16:44,637 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:16:44,637 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 10.578947368421053) internal successors, (201), 19 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:16:44,637 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:16:44,637 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:16:44,637 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:16:44,637 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:16:44,638 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:16:44,638 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:16:45,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:16:45,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:16:45,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:16:45,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:16:45,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:16:45,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-20 16:16:45,344 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (72)] Forceful destruction successful, exit code 0 [2022-11-20 16:16:45,539 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable141,72 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 16:16:45,539 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:16:45,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:16:45,540 INFO L85 PathProgramCache]: Analyzing trace with hash -1387472473, now seen corresponding path program 1 times [2022-11-20 16:16:45,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:16:45,540 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1919820444] [2022-11-20 16:16:45,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:16:45,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:16:45,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:16:45,930 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 217 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-20 16:16:45,931 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:16:45,931 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1919820444] [2022-11-20 16:16:45,931 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1919820444] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 16:16:45,931 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1649181198] [2022-11-20 16:16:45,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:16:45,932 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 16:16:45,932 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 [2022-11-20 16:16:45,933 INFO L229 MonitoredProcess]: Starting monitored process 73 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 16:16:45,958 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (73)] Waiting until timeout for monitored process [2022-11-20 16:16:46,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:16:46,578 INFO L263 TraceCheckSpWp]: Trace formula consists of 460 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-20 16:16:46,581 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 16:16:46,698 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 217 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-20 16:16:46,698 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 16:16:47,031 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 217 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-20 16:16:47,031 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1649181198] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 16:16:47,032 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 16:16:47,032 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 34 [2022-11-20 16:16:47,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1881248438] [2022-11-20 16:16:47,032 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 16:16:47,032 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-11-20 16:16:47,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:16:47,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-11-20 16:16:47,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2022-11-20 16:16:47,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:16:47,034 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:16:47,034 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 7.5) internal successors, (255), 34 states have internal predecessors, (255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:16:47,034 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:16:47,034 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:16:47,034 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:16:47,034 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:16:47,034 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:16:47,034 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-11-20 16:16:47,034 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:16:48,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:16:48,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:16:48,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:16:48,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:16:48,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:16:48,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-20 16:16:48,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-11-20 16:16:48,849 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (73)] Forceful destruction successful, exit code 0 [2022-11-20 16:16:49,043 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable142,73 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 16:16:49,043 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:16:49,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:16:49,043 INFO L85 PathProgramCache]: Analyzing trace with hash 1158055795, now seen corresponding path program 1 times [2022-11-20 16:16:49,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:16:49,043 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [799462273] [2022-11-20 16:16:49,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:16:49,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:16:49,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:16:49,907 INFO L134 CoverageAnalysis]: Checked inductivity of 1073 backedges. 0 proven. 1065 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-20 16:16:49,907 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:16:49,907 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [799462273] [2022-11-20 16:16:49,907 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [799462273] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 16:16:49,907 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1649911694] [2022-11-20 16:16:49,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:16:49,907 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 16:16:49,907 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 [2022-11-20 16:16:49,908 INFO L229 MonitoredProcess]: Starting monitored process 74 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 16:16:49,911 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (74)] Waiting until timeout for monitored process [2022-11-20 16:16:50,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:16:50,568 INFO L263 TraceCheckSpWp]: Trace formula consists of 668 conjuncts, 32 conjunts are in the unsatisfiable core [2022-11-20 16:16:50,572 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 16:16:50,833 INFO L134 CoverageAnalysis]: Checked inductivity of 1073 backedges. 0 proven. 1065 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-20 16:16:50,834 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 16:16:52,020 INFO L134 CoverageAnalysis]: Checked inductivity of 1073 backedges. 0 proven. 1065 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-20 16:16:52,020 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1649911694] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 16:16:52,020 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 16:16:52,021 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33, 33] total 66 [2022-11-20 16:16:52,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058254704] [2022-11-20 16:16:52,021 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 16:16:52,022 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 66 states [2022-11-20 16:16:52,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:16:52,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2022-11-20 16:16:52,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1122, Invalid=3168, Unknown=0, NotChecked=0, Total=4290 [2022-11-20 16:16:52,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:16:52,024 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:16:52,024 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 66 states, 66 states have (on average 6.287878787878788) internal successors, (415), 66 states have internal predecessors, (415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:16:52,025 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:16:52,025 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:16:52,025 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:16:52,025 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:16:52,025 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:16:52,025 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-11-20 16:16:52,025 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2022-11-20 16:16:52,026 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:16:54,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:16:54,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:16:54,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:16:54,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:16:54,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:16:54,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-20 16:16:54,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-11-20 16:16:54,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-11-20 16:16:54,126 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (74)] Forceful destruction successful, exit code 0 [2022-11-20 16:16:54,323 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable143,74 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 16:16:54,323 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:16:54,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:16:54,323 INFO L85 PathProgramCache]: Analyzing trace with hash -39202416, now seen corresponding path program 1 times [2022-11-20 16:16:54,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:16:54,323 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1480876442] [2022-11-20 16:16:54,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:16:54,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:16:54,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 16:16:54,356 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 16:16:54,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 16:16:54,419 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 16:16:54,420 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-20 16:16:54,420 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 7 remaining) [2022-11-20 16:16:54,420 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 7 remaining) [2022-11-20 16:16:54,420 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 7 remaining) [2022-11-20 16:16:54,421 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 7 remaining) [2022-11-20 16:16:54,421 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 7 remaining) [2022-11-20 16:16:54,421 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (1 of 7 remaining) [2022-11-20 16:16:54,421 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK (0 of 7 remaining) [2022-11-20 16:16:54,421 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable144 [2022-11-20 16:16:54,425 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 16:16:54,425 WARN L233 ceAbstractionStarter]: 19 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-20 16:16:54,426 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 20 thread instances. [2022-11-20 16:16:54,490 INFO L144 ThreadInstanceAdder]: Constructed 20 joinOtherThreadTransitions. [2022-11-20 16:16:54,495 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 16:16:54,496 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-11-20 16:16:54,496 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 [2022-11-20 16:16:54,497 INFO L229 MonitoredProcess]: Starting monitored process 75 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-11-20 16:16:54,509 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-11-20 16:16:54,509 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2022-11-20 16:16:54,509 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@46174585, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 16:16:54,510 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-11-20 16:16:54,534 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (75)] Waiting until timeout for monitored process [2022-11-20 16:16:54,563 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:16:54,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:16:54,563 INFO L85 PathProgramCache]: Analyzing trace with hash 1929843694, now seen corresponding path program 1 times [2022-11-20 16:16:54,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:16:54,563 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [855947538] [2022-11-20 16:16:54,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:16:54,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:16:54,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:16:54,583 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:16:54,583 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:16:54,583 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [855947538] [2022-11-20 16:16:54,583 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [855947538] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 16:16:54,583 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 16:16:54,584 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 16:16:54,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1378688137] [2022-11-20 16:16:54,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 16:16:54,584 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-20 16:16:54,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:16:54,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-20 16:16:54,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-20 16:16:54,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:16:54,585 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:16:54,586 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:16:54,586 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:16:54,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:16:54,587 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable145 [2022-11-20 16:16:54,587 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:16:54,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:16:54,588 INFO L85 PathProgramCache]: Analyzing trace with hash -584563421, now seen corresponding path program 1 times [2022-11-20 16:16:54,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:16:54,588 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [274699501] [2022-11-20 16:16:54,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:16:54,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:16:54,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:16:54,619 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:16:54,619 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:16:54,619 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [274699501] [2022-11-20 16:16:54,621 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [274699501] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 16:16:54,621 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 16:16:54,621 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 16:16:54,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [33592773] [2022-11-20 16:16:54,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 16:16:54,622 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 16:16:54,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:16:54,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 16:16:54,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 16:16:54,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:16:54,627 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:16:54,627 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:16:54,628 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:16:54,628 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:16:54,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:16:54,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:16:54,977 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable146 [2022-11-20 16:16:54,978 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:16:54,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:16:54,978 INFO L85 PathProgramCache]: Analyzing trace with hash -1947108796, now seen corresponding path program 1 times [2022-11-20 16:16:54,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:16:54,979 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1827449313] [2022-11-20 16:16:54,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:16:54,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:16:54,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:16:55,027 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:16:55,028 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:16:55,028 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1827449313] [2022-11-20 16:16:55,028 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1827449313] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 16:16:55,028 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [200163946] [2022-11-20 16:16:55,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:16:55,028 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 16:16:55,028 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 [2022-11-20 16:16:55,031 INFO L229 MonitoredProcess]: Starting monitored process 76 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 16:16:55,032 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (76)] Waiting until timeout for monitored process [2022-11-20 16:16:55,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:16:55,639 INFO L263 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 16:16:55,639 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 16:16:55,671 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:16:55,671 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 16:16:55,704 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:16:55,705 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [200163946] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 16:16:55,705 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 16:16:55,705 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-11-20 16:16:55,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963804402] [2022-11-20 16:16:55,705 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 16:16:55,706 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-20 16:16:55,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:16:55,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-20 16:16:55,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-20 16:16:55,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:16:55,707 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:16:55,707 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.4) internal successors, (74), 10 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:16:55,707 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:16:55,707 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:16:55,707 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:16:55,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:16:55,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:16:55,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:16:55,942 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (76)] Forceful destruction successful, exit code 0 [2022-11-20 16:16:56,141 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 76 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable147 [2022-11-20 16:16:56,142 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:16:56,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:16:56,142 INFO L85 PathProgramCache]: Analyzing trace with hash -759127965, now seen corresponding path program 1 times [2022-11-20 16:16:56,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:16:56,142 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [856189336] [2022-11-20 16:16:56,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:16:56,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:16:56,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:16:56,204 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-20 16:16:56,205 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:16:56,205 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [856189336] [2022-11-20 16:16:56,205 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [856189336] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 16:16:56,205 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 16:16:56,205 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 16:16:56,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [740172826] [2022-11-20 16:16:56,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 16:16:56,206 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 16:16:56,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:16:56,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 16:16:56,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 16:16:56,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:16:56,207 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:16:56,207 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:16:56,207 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:16:56,207 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:16:56,207 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:16:56,207 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:16:56,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:16:56,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:16:56,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:16:56,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 16:16:56,378 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable148 [2022-11-20 16:16:56,379 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:16:56,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:16:56,379 INFO L85 PathProgramCache]: Analyzing trace with hash -832777950, now seen corresponding path program 1 times [2022-11-20 16:16:56,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:16:56,379 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1540888950] [2022-11-20 16:16:56,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:16:56,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:16:56,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:16:56,412 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-20 16:16:56,412 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:16:56,412 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1540888950] [2022-11-20 16:16:56,412 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1540888950] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 16:16:56,412 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 16:16:56,412 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 16:16:56,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570878389] [2022-11-20 16:16:56,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 16:16:56,413 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 16:16:56,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:16:56,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 16:16:56,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 16:16:56,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:16:56,414 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:16:56,414 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:16:56,414 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:16:56,414 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:16:56,414 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:16:56,414 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-11-20 16:16:56,414 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:16:56,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:16:56,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:16:56,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:16:56,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:16:56,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:16:56,722 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable149 [2022-11-20 16:16:56,722 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:16:56,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:16:56,723 INFO L85 PathProgramCache]: Analyzing trace with hash 1799257358, now seen corresponding path program 1 times [2022-11-20 16:16:56,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:16:56,723 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1725759019] [2022-11-20 16:16:56,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:16:56,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:16:56,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:16:56,810 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-20 16:16:56,810 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:16:56,810 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1725759019] [2022-11-20 16:16:56,810 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1725759019] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 16:16:56,811 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [652572680] [2022-11-20 16:16:56,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:16:56,811 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 16:16:56,811 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 [2022-11-20 16:16:56,812 INFO L229 MonitoredProcess]: Starting monitored process 77 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 16:16:56,835 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (77)] Waiting until timeout for monitored process [2022-11-20 16:16:57,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:16:57,625 INFO L263 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-20 16:16:57,627 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 16:16:57,730 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-20 16:16:57,730 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 16:16:57,842 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-20 16:16:57,842 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [652572680] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 16:16:57,843 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 16:16:57,843 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 9, 9] total 19 [2022-11-20 16:16:57,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1918596414] [2022-11-20 16:16:57,843 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 16:16:57,843 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-20 16:16:57,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:16:57,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-20 16:16:57,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=263, Unknown=0, NotChecked=0, Total=342 [2022-11-20 16:16:57,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:16:57,844 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:16:57,844 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 10.578947368421053) internal successors, (201), 19 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:16:57,845 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:16:57,845 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:16:57,845 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:16:57,845 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:16:57,845 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:16:57,845 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:16:58,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:16:58,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:16:58,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:16:58,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:16:58,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:16:58,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-20 16:16:58,739 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (77)] Forceful destruction successful, exit code 0 [2022-11-20 16:16:58,932 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 77 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable150 [2022-11-20 16:16:58,932 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:16:58,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:16:58,933 INFO L85 PathProgramCache]: Analyzing trace with hash 6737743, now seen corresponding path program 1 times [2022-11-20 16:16:58,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:16:58,933 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [703746771] [2022-11-20 16:16:58,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:16:58,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:16:58,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:16:59,307 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 217 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-20 16:16:59,307 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:16:59,308 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [703746771] [2022-11-20 16:16:59,308 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [703746771] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 16:16:59,308 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1753408703] [2022-11-20 16:16:59,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:16:59,309 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 16:16:59,309 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 [2022-11-20 16:16:59,310 INFO L229 MonitoredProcess]: Starting monitored process 78 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 16:16:59,331 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (78)] Waiting until timeout for monitored process [2022-11-20 16:17:00,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:17:00,039 INFO L263 TraceCheckSpWp]: Trace formula consists of 460 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-20 16:17:00,041 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 16:17:00,157 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 217 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-20 16:17:00,157 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 16:17:00,496 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 217 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-20 16:17:00,496 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1753408703] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 16:17:00,496 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 16:17:00,496 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 34 [2022-11-20 16:17:00,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [721868582] [2022-11-20 16:17:00,496 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 16:17:00,497 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-11-20 16:17:00,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:17:00,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-11-20 16:17:00,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2022-11-20 16:17:00,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:17:00,498 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:17:00,498 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 7.5) internal successors, (255), 34 states have internal predecessors, (255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:17:00,498 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:17:00,499 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:17:00,499 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:17:00,499 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:17:00,499 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:17:00,499 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-11-20 16:17:00,499 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:17:02,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:17:02,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:17:02,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:17:02,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:17:02,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:17:02,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-20 16:17:02,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-11-20 16:17:02,231 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (78)] Forceful destruction successful, exit code 0 [2022-11-20 16:17:02,423 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable151,78 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 16:17:02,424 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:17:02,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:17:02,424 INFO L85 PathProgramCache]: Analyzing trace with hash 1356960123, now seen corresponding path program 1 times [2022-11-20 16:17:02,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:17:02,424 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2103334647] [2022-11-20 16:17:02,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:17:02,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:17:02,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:17:03,344 INFO L134 CoverageAnalysis]: Checked inductivity of 1073 backedges. 0 proven. 1065 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-20 16:17:03,344 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:17:03,344 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2103334647] [2022-11-20 16:17:03,344 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2103334647] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 16:17:03,345 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1764618850] [2022-11-20 16:17:03,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:17:03,345 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 16:17:03,345 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 [2022-11-20 16:17:03,346 INFO L229 MonitoredProcess]: Starting monitored process 79 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 16:17:03,349 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (79)] Waiting until timeout for monitored process [2022-11-20 16:17:04,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:17:04,047 INFO L263 TraceCheckSpWp]: Trace formula consists of 668 conjuncts, 32 conjunts are in the unsatisfiable core [2022-11-20 16:17:04,049 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 16:17:04,284 INFO L134 CoverageAnalysis]: Checked inductivity of 1073 backedges. 0 proven. 1065 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-20 16:17:04,284 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 16:17:05,476 INFO L134 CoverageAnalysis]: Checked inductivity of 1073 backedges. 0 proven. 1065 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-20 16:17:05,476 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1764618850] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 16:17:05,476 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 16:17:05,476 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33, 33] total 66 [2022-11-20 16:17:05,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1083223893] [2022-11-20 16:17:05,476 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 16:17:05,477 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 66 states [2022-11-20 16:17:05,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:17:05,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2022-11-20 16:17:05,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1122, Invalid=3168, Unknown=0, NotChecked=0, Total=4290 [2022-11-20 16:17:05,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:17:05,479 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:17:05,480 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 66 states, 66 states have (on average 6.287878787878788) internal successors, (415), 66 states have internal predecessors, (415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:17:05,480 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:17:05,480 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:17:05,480 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:17:05,480 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:17:05,481 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:17:05,481 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-11-20 16:17:05,481 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2022-11-20 16:17:05,481 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:17:07,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:17:07,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:17:07,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:17:07,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:17:07,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:17:07,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-20 16:17:07,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-11-20 16:17:07,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2022-11-20 16:17:07,712 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (79)] Ended with exit code 0 [2022-11-20 16:17:07,905 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 79 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable152 [2022-11-20 16:17:07,905 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:17:07,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:17:07,906 INFO L85 PathProgramCache]: Analyzing trace with hash -361948266, now seen corresponding path program 1 times [2022-11-20 16:17:07,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:17:07,906 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [596912818] [2022-11-20 16:17:07,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:17:07,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:17:07,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 16:17:07,949 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 16:17:07,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 16:17:08,024 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 16:17:08,025 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-20 16:17:08,025 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 7 remaining) [2022-11-20 16:17:08,025 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 7 remaining) [2022-11-20 16:17:08,025 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 7 remaining) [2022-11-20 16:17:08,025 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 7 remaining) [2022-11-20 16:17:08,026 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 7 remaining) [2022-11-20 16:17:08,026 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (1 of 7 remaining) [2022-11-20 16:17:08,026 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK (0 of 7 remaining) [2022-11-20 16:17:08,026 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable153 [2022-11-20 16:17:08,030 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 16:17:08,030 WARN L233 ceAbstractionStarter]: 20 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-20 16:17:08,030 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 21 thread instances. [2022-11-20 16:17:08,094 INFO L144 ThreadInstanceAdder]: Constructed 21 joinOtherThreadTransitions. [2022-11-20 16:17:08,103 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 16:17:08,103 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-11-20 16:17:08,104 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 [2022-11-20 16:17:08,105 INFO L229 MonitoredProcess]: Starting monitored process 80 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-11-20 16:17:08,117 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-11-20 16:17:08,117 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2022-11-20 16:17:08,118 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@46174585, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 16:17:08,118 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-11-20 16:17:08,119 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (80)] Waiting until timeout for monitored process [2022-11-20 16:17:08,160 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:17:08,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:17:08,161 INFO L85 PathProgramCache]: Analyzing trace with hash -533348882, now seen corresponding path program 1 times [2022-11-20 16:17:08,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:17:08,161 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2410270] [2022-11-20 16:17:08,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:17:08,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:17:08,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:17:08,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:17:08,181 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:17:08,182 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2410270] [2022-11-20 16:17:08,182 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2410270] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 16:17:08,182 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 16:17:08,182 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 16:17:08,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793593622] [2022-11-20 16:17:08,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 16:17:08,183 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-20 16:17:08,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:17:08,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-20 16:17:08,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-20 16:17:08,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:17:08,184 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:17:08,184 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:17:08,184 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:17:08,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:17:08,186 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable154 [2022-11-20 16:17:08,186 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:17:08,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:17:08,187 INFO L85 PathProgramCache]: Analyzing trace with hash -1185601629, now seen corresponding path program 1 times [2022-11-20 16:17:08,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:17:08,187 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2033975435] [2022-11-20 16:17:08,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:17:08,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:17:08,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:17:08,220 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:17:08,220 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:17:08,221 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2033975435] [2022-11-20 16:17:08,221 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2033975435] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 16:17:08,221 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 16:17:08,221 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 16:17:08,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030595431] [2022-11-20 16:17:08,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 16:17:08,222 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 16:17:08,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:17:08,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 16:17:08,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 16:17:08,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:17:08,223 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:17:08,223 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:17:08,224 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:17:08,224 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:17:08,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:17:08,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:17:08,594 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable155 [2022-11-20 16:17:08,595 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:17:08,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:17:08,595 INFO L85 PathProgramCache]: Analyzing trace with hash 1670664872, now seen corresponding path program 1 times [2022-11-20 16:17:08,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:17:08,595 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1343099156] [2022-11-20 16:17:08,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:17:08,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:17:08,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:17:08,637 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:17:08,637 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:17:08,637 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1343099156] [2022-11-20 16:17:08,637 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1343099156] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 16:17:08,637 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1112645048] [2022-11-20 16:17:08,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:17:08,638 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 16:17:08,638 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 [2022-11-20 16:17:08,639 INFO L229 MonitoredProcess]: Starting monitored process 81 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 16:17:08,641 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (81)] Waiting until timeout for monitored process [2022-11-20 16:17:09,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:17:09,293 INFO L263 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 16:17:09,294 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 16:17:09,320 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:17:09,320 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 16:17:09,355 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:17:09,355 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1112645048] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 16:17:09,356 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 16:17:09,356 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-11-20 16:17:09,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1228070534] [2022-11-20 16:17:09,356 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 16:17:09,356 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-20 16:17:09,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:17:09,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-20 16:17:09,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-20 16:17:09,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:17:09,357 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:17:09,357 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.4) internal successors, (74), 10 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:17:09,357 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:17:09,357 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:17:09,357 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:17:09,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:17:09,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:17:09,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:17:09,598 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (81)] Forceful destruction successful, exit code 0 [2022-11-20 16:17:09,792 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable156,81 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 16:17:09,792 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:17:09,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:17:09,792 INFO L85 PathProgramCache]: Analyzing trace with hash 1551793551, now seen corresponding path program 1 times [2022-11-20 16:17:09,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:17:09,792 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [603181000] [2022-11-20 16:17:09,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:17:09,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:17:09,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:17:09,946 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-20 16:17:09,946 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:17:09,946 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [603181000] [2022-11-20 16:17:09,946 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [603181000] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 16:17:09,946 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 16:17:09,947 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 16:17:09,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1488643972] [2022-11-20 16:17:09,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 16:17:09,947 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 16:17:09,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:17:09,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 16:17:09,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 16:17:09,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:17:09,948 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:17:09,948 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:17:09,948 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:17:09,948 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:17:09,949 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:17:09,949 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:17:10,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:17:10,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:17:10,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:17:10,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 16:17:10,107 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable157 [2022-11-20 16:17:10,107 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:17:10,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:17:10,108 INFO L85 PathProgramCache]: Analyzing trace with hash 1064380730, now seen corresponding path program 1 times [2022-11-20 16:17:10,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:17:10,108 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [316995978] [2022-11-20 16:17:10,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:17:10,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:17:10,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:17:10,139 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-20 16:17:10,139 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:17:10,139 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [316995978] [2022-11-20 16:17:10,140 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [316995978] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 16:17:10,140 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 16:17:10,140 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 16:17:10,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640280804] [2022-11-20 16:17:10,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 16:17:10,140 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 16:17:10,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:17:10,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 16:17:10,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 16:17:10,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:17:10,142 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:17:10,142 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:17:10,142 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:17:10,143 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:17:10,143 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:17:10,143 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-11-20 16:17:10,143 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:17:10,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:17:10,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:17:10,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:17:10,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:17:10,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:17:10,470 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable158 [2022-11-20 16:17:10,471 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:17:10,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:17:10,471 INFO L85 PathProgramCache]: Analyzing trace with hash 136788797, now seen corresponding path program 1 times [2022-11-20 16:17:10,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:17:10,471 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [769874638] [2022-11-20 16:17:10,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:17:10,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:17:10,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:17:10,541 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-20 16:17:10,541 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:17:10,542 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [769874638] [2022-11-20 16:17:10,542 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [769874638] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 16:17:10,542 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1216924962] [2022-11-20 16:17:10,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:17:10,542 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 16:17:10,542 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 [2022-11-20 16:17:10,543 INFO L229 MonitoredProcess]: Starting monitored process 82 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 16:17:10,545 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (82)] Waiting until timeout for monitored process [2022-11-20 16:17:11,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:17:11,200 INFO L263 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-20 16:17:11,201 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 16:17:11,297 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-20 16:17:11,297 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 16:17:11,417 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-20 16:17:11,417 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1216924962] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 16:17:11,417 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 16:17:11,417 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 9, 9] total 19 [2022-11-20 16:17:11,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1989927387] [2022-11-20 16:17:11,417 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 16:17:11,418 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-20 16:17:11,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:17:11,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-20 16:17:11,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=263, Unknown=0, NotChecked=0, Total=342 [2022-11-20 16:17:11,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:17:11,422 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:17:11,422 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 10.578947368421053) internal successors, (201), 19 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:17:11,422 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:17:11,422 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:17:11,422 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:17:11,422 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:17:11,422 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:17:11,422 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:17:12,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:17:12,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:17:12,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:17:12,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:17:12,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:17:12,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-20 16:17:12,176 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (82)] Forceful destruction successful, exit code 0 [2022-11-20 16:17:12,375 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable159,82 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 16:17:12,375 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:17:12,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:17:12,375 INFO L85 PathProgramCache]: Analyzing trace with hash -622190281, now seen corresponding path program 1 times [2022-11-20 16:17:12,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:17:12,376 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [968415332] [2022-11-20 16:17:12,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:17:12,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:17:12,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:17:12,666 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 217 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-20 16:17:12,666 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:17:12,666 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [968415332] [2022-11-20 16:17:12,666 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [968415332] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 16:17:12,666 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [219397704] [2022-11-20 16:17:12,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:17:12,667 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 16:17:12,667 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 [2022-11-20 16:17:12,668 INFO L229 MonitoredProcess]: Starting monitored process 83 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 16:17:12,670 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (83)] Waiting until timeout for monitored process [2022-11-20 16:17:13,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:17:13,382 INFO L263 TraceCheckSpWp]: Trace formula consists of 460 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-20 16:17:13,384 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 16:17:13,497 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 217 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-20 16:17:13,498 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 16:17:13,829 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 217 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-20 16:17:13,830 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [219397704] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 16:17:13,830 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 16:17:13,830 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 34 [2022-11-20 16:17:13,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105891408] [2022-11-20 16:17:13,830 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 16:17:13,831 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-11-20 16:17:13,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:17:13,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-11-20 16:17:13,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2022-11-20 16:17:13,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:17:13,832 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:17:13,832 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 7.5) internal successors, (255), 34 states have internal predecessors, (255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:17:13,832 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:17:13,832 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:17:13,832 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:17:13,833 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:17:13,833 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:17:13,833 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-11-20 16:17:13,833 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:17:15,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:17:15,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:17:15,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:17:15,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:17:15,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:17:15,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-20 16:17:15,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-11-20 16:17:15,958 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (83)] Ended with exit code 0 [2022-11-20 16:17:16,151 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable160,83 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 16:17:16,151 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:17:16,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:17:16,151 INFO L85 PathProgramCache]: Analyzing trace with hash 2055554499, now seen corresponding path program 1 times [2022-11-20 16:17:16,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:17:16,151 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [216199834] [2022-11-20 16:17:16,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:17:16,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:17:16,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:17:16,986 INFO L134 CoverageAnalysis]: Checked inductivity of 1073 backedges. 0 proven. 1065 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-20 16:17:16,986 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:17:16,986 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [216199834] [2022-11-20 16:17:16,986 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [216199834] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 16:17:16,986 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [594098247] [2022-11-20 16:17:16,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:17:16,987 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 16:17:16,987 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 [2022-11-20 16:17:16,988 INFO L229 MonitoredProcess]: Starting monitored process 84 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 16:17:17,036 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (84)] Waiting until timeout for monitored process [2022-11-20 16:17:17,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:17:17,802 INFO L263 TraceCheckSpWp]: Trace formula consists of 668 conjuncts, 32 conjunts are in the unsatisfiable core [2022-11-20 16:17:17,806 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 16:17:18,098 INFO L134 CoverageAnalysis]: Checked inductivity of 1073 backedges. 0 proven. 1065 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-20 16:17:18,098 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 16:17:19,289 INFO L134 CoverageAnalysis]: Checked inductivity of 1073 backedges. 0 proven. 1065 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-20 16:17:19,289 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [594098247] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 16:17:19,289 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 16:17:19,290 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33, 33] total 66 [2022-11-20 16:17:19,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959343823] [2022-11-20 16:17:19,290 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 16:17:19,291 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 66 states [2022-11-20 16:17:19,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:17:19,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2022-11-20 16:17:19,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1122, Invalid=3168, Unknown=0, NotChecked=0, Total=4290 [2022-11-20 16:17:19,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:17:19,293 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:17:19,293 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 66 states, 66 states have (on average 6.287878787878788) internal successors, (415), 66 states have internal predecessors, (415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:17:19,293 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:17:19,293 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:17:19,293 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:17:19,293 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:17:19,293 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:17:19,293 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-11-20 16:17:19,293 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2022-11-20 16:17:19,293 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:17:22,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:17:22,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:17:22,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:17:22,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:17:22,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:17:22,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-20 16:17:22,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-11-20 16:17:22,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2022-11-20 16:17:22,110 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (84)] Ended with exit code 0 [2022-11-20 16:17:22,302 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 84 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable161 [2022-11-20 16:17:22,302 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:17:22,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:17:22,303 INFO L85 PathProgramCache]: Analyzing trace with hash 469793365, now seen corresponding path program 1 times [2022-11-20 16:17:22,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:17:22,303 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1814299364] [2022-11-20 16:17:22,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:17:22,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:17:22,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 16:17:22,477 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 16:17:22,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 16:17:22,563 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 16:17:22,564 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-20 16:17:22,564 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 7 remaining) [2022-11-20 16:17:22,564 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 7 remaining) [2022-11-20 16:17:22,564 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 7 remaining) [2022-11-20 16:17:22,565 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 7 remaining) [2022-11-20 16:17:22,565 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 7 remaining) [2022-11-20 16:17:22,565 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (1 of 7 remaining) [2022-11-20 16:17:22,565 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK (0 of 7 remaining) [2022-11-20 16:17:22,566 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable162 [2022-11-20 16:17:22,573 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 16:17:22,573 WARN L233 ceAbstractionStarter]: 21 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-20 16:17:22,573 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 22 thread instances. [2022-11-20 16:17:22,664 INFO L144 ThreadInstanceAdder]: Constructed 22 joinOtherThreadTransitions. [2022-11-20 16:17:22,673 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 16:17:22,673 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-11-20 16:17:22,673 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 [2022-11-20 16:17:22,676 INFO L229 MonitoredProcess]: Starting monitored process 85 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-11-20 16:17:22,685 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-11-20 16:17:22,686 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2022-11-20 16:17:22,686 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@46174585, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 16:17:22,686 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-11-20 16:17:22,688 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (85)] Waiting until timeout for monitored process [2022-11-20 16:17:22,728 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:17:22,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:17:22,729 INFO L85 PathProgramCache]: Analyzing trace with hash -1112995858, now seen corresponding path program 1 times [2022-11-20 16:17:22,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:17:22,729 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1375742321] [2022-11-20 16:17:22,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:17:22,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:17:22,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:17:22,759 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:17:22,759 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:17:22,759 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1375742321] [2022-11-20 16:17:22,759 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1375742321] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 16:17:22,759 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 16:17:22,760 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 16:17:22,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316055358] [2022-11-20 16:17:22,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 16:17:22,760 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-20 16:17:22,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:17:22,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-20 16:17:22,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-20 16:17:22,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:17:22,762 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:17:22,762 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:17:22,762 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:17:22,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:17:22,764 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable163 [2022-11-20 16:17:22,764 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:17:22,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:17:22,765 INFO L85 PathProgramCache]: Analyzing trace with hash 119452195, now seen corresponding path program 1 times [2022-11-20 16:17:22,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:17:22,765 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [901603822] [2022-11-20 16:17:22,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:17:22,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:17:22,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:17:22,806 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:17:22,806 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:17:22,806 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [901603822] [2022-11-20 16:17:22,807 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [901603822] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 16:17:22,807 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 16:17:22,807 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 16:17:22,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969176589] WARNING: YOUR LOGFILE WAS TOO LONG, SOME LINES IN THE MIDDLE WERE REMOVED. [2022-11-20 16:17:56,058 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1154407546] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 16:17:56,058 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 16:17:56,058 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 16:17:56,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [971683977] [2022-11-20 16:17:56,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 16:17:56,058 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 16:17:56,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:17:56,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 16:17:56,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 16:17:56,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:17:56,060 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:17:56,060 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:17:56,060 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:17:56,060 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:17:56,060 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:17:56,060 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-11-20 16:17:56,060 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:17:56,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:17:56,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:17:56,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:17:56,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:17:56,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:17:56,455 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable185 [2022-11-20 16:17:56,455 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:17:56,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:17:56,456 INFO L85 PathProgramCache]: Analyzing trace with hash -829104566, now seen corresponding path program 1 times [2022-11-20 16:17:56,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:17:56,456 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1778695873] [2022-11-20 16:17:56,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:17:56,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:17:56,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:17:56,534 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-20 16:17:56,534 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:17:56,534 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1778695873] [2022-11-20 16:17:56,534 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1778695873] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 16:17:56,534 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [878990034] [2022-11-20 16:17:56,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:17:56,535 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 16:17:56,535 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 [2022-11-20 16:17:56,539 INFO L229 MonitoredProcess]: Starting monitored process 97 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 16:17:56,540 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (97)] Waiting until timeout for monitored process [2022-11-20 16:17:57,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:17:57,392 INFO L263 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-20 16:17:57,394 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 16:17:57,486 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-20 16:17:57,487 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 16:17:57,617 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-20 16:17:57,617 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [878990034] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 16:17:57,617 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 16:17:57,617 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 9, 9] total 19 [2022-11-20 16:17:57,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1902101173] [2022-11-20 16:17:57,618 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 16:17:57,618 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-20 16:17:57,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:17:57,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-20 16:17:57,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=263, Unknown=0, NotChecked=0, Total=342 [2022-11-20 16:17:57,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:17:57,619 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:17:57,619 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 10.578947368421053) internal successors, (201), 19 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:17:57,620 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:17:57,620 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:17:57,620 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:17:57,620 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:17:57,620 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:17:57,620 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:17:58,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:17:58,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:17:58,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:17:58,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:17:58,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:17:58,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-20 16:17:58,504 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (97)] Ended with exit code 0 [2022-11-20 16:17:58,696 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable186,97 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 16:17:58,696 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:17:58,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:17:58,696 INFO L85 PathProgramCache]: Analyzing trace with hash 1488743791, now seen corresponding path program 1 times [2022-11-20 16:17:58,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:17:58,697 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1586299132] [2022-11-20 16:17:58,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:17:58,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:17:58,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:17:59,138 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 217 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-20 16:17:59,138 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:17:59,138 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1586299132] [2022-11-20 16:17:59,138 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1586299132] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 16:17:59,138 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [471214614] [2022-11-20 16:17:59,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:17:59,139 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 16:17:59,139 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 [2022-11-20 16:17:59,140 INFO L229 MonitoredProcess]: Starting monitored process 98 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 16:17:59,142 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (98)] Waiting until timeout for monitored process [2022-11-20 16:18:00,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:18:00,007 INFO L263 TraceCheckSpWp]: Trace formula consists of 460 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-20 16:18:00,008 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 16:18:00,116 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 217 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-20 16:18:00,116 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 16:18:00,452 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 217 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-20 16:18:00,452 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [471214614] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 16:18:00,453 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 16:18:00,453 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 34 [2022-11-20 16:18:00,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096357431] [2022-11-20 16:18:00,453 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 16:18:00,454 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-11-20 16:18:00,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:18:00,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-11-20 16:18:00,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2022-11-20 16:18:00,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:18:00,456 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:18:00,456 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 7.5) internal successors, (255), 34 states have internal predecessors, (255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:18:00,456 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:18:00,456 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:18:00,456 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:18:00,456 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:18:00,456 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:18:00,456 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-11-20 16:18:00,456 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:18:02,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:18:02,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:18:02,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:18:02,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:18:02,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:18:02,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-20 16:18:02,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-11-20 16:18:02,531 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (98)] Forceful destruction successful, exit code 0 [2022-11-20 16:18:02,722 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 98 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable187 [2022-11-20 16:18:02,722 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:18:02,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:18:02,723 INFO L85 PathProgramCache]: Analyzing trace with hash -682766053, now seen corresponding path program 1 times [2022-11-20 16:18:02,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:18:02,723 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1146731695] [2022-11-20 16:18:02,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:18:02,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:18:02,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:18:03,549 INFO L134 CoverageAnalysis]: Checked inductivity of 1073 backedges. 0 proven. 1065 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-20 16:18:03,549 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:18:03,549 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1146731695] [2022-11-20 16:18:03,550 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1146731695] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 16:18:03,550 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [856921774] [2022-11-20 16:18:03,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:18:03,550 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 16:18:03,550 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 [2022-11-20 16:18:03,552 INFO L229 MonitoredProcess]: Starting monitored process 99 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 16:18:03,554 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (99)] Waiting until timeout for monitored process [2022-11-20 16:18:04,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:18:04,531 INFO L263 TraceCheckSpWp]: Trace formula consists of 668 conjuncts, 32 conjunts are in the unsatisfiable core [2022-11-20 16:18:04,533 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 16:18:04,764 INFO L134 CoverageAnalysis]: Checked inductivity of 1073 backedges. 0 proven. 1065 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-20 16:18:04,764 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 16:18:05,952 INFO L134 CoverageAnalysis]: Checked inductivity of 1073 backedges. 0 proven. 1065 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-20 16:18:05,952 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [856921774] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 16:18:05,953 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 16:18:05,953 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33, 33] total 66 [2022-11-20 16:18:05,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [840386217] [2022-11-20 16:18:05,953 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 16:18:05,954 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 66 states [2022-11-20 16:18:05,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:18:05,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2022-11-20 16:18:05,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1122, Invalid=3168, Unknown=0, NotChecked=0, Total=4290 [2022-11-20 16:18:05,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:18:05,956 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:18:05,956 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 66 states, 66 states have (on average 6.287878787878788) internal successors, (415), 66 states have internal predecessors, (415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:18:05,956 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:18:05,956 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:18:05,957 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:18:05,957 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:18:05,957 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:18:05,957 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-11-20 16:18:05,957 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2022-11-20 16:18:05,957 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:18:09,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:18:09,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:18:09,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:18:09,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:18:09,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:18:09,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-20 16:18:09,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-11-20 16:18:09,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2022-11-20 16:18:09,879 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (99)] Forceful destruction successful, exit code 0 [2022-11-20 16:18:10,070 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 99 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable188 [2022-11-20 16:18:10,071 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:18:10,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:18:10,071 INFO L85 PathProgramCache]: Analyzing trace with hash -435792792, now seen corresponding path program 1 times [2022-11-20 16:18:10,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:18:10,071 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1854340773] [2022-11-20 16:18:10,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:18:10,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:18:10,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 16:18:10,121 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 16:18:10,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 16:18:10,201 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 16:18:10,201 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-20 16:18:10,201 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 7 remaining) [2022-11-20 16:18:10,201 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 7 remaining) [2022-11-20 16:18:10,202 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 7 remaining) [2022-11-20 16:18:10,202 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 7 remaining) [2022-11-20 16:18:10,202 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 7 remaining) [2022-11-20 16:18:10,202 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (1 of 7 remaining) [2022-11-20 16:18:10,202 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK (0 of 7 remaining) [2022-11-20 16:18:10,203 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable189 [2022-11-20 16:18:10,206 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 16:18:10,206 WARN L233 ceAbstractionStarter]: 24 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-20 16:18:10,207 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 25 thread instances. [2022-11-20 16:18:10,286 INFO L144 ThreadInstanceAdder]: Constructed 25 joinOtherThreadTransitions. [2022-11-20 16:18:10,293 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 16:18:10,294 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-11-20 16:18:10,294 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 [2022-11-20 16:18:10,295 INFO L229 MonitoredProcess]: Starting monitored process 100 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-11-20 16:18:10,305 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-11-20 16:18:10,305 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2022-11-20 16:18:10,305 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@46174585, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 16:18:10,305 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-11-20 16:18:10,324 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (100)] Waiting until timeout for monitored process [2022-11-20 16:18:10,356 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:18:10,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:18:10,356 INFO L85 PathProgramCache]: Analyzing trace with hash -140597778, now seen corresponding path program 1 times [2022-11-20 16:18:10,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:18:10,357 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1266561916] [2022-11-20 16:18:10,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:18:10,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:18:10,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:18:10,374 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:18:10,375 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:18:10,375 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1266561916] [2022-11-20 16:18:10,375 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1266561916] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 16:18:10,375 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 16:18:10,375 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 16:18:10,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1438942023] [2022-11-20 16:18:10,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 16:18:10,375 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-20 16:18:10,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:18:10,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-20 16:18:10,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-20 16:18:10,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:18:10,376 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:18:10,377 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:18:10,377 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:18:10,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:18:10,378 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable190 [2022-11-20 16:18:10,378 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:18:10,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:18:10,379 INFO L85 PathProgramCache]: Analyzing trace with hash -1708703325, now seen corresponding path program 1 times [2022-11-20 16:18:10,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:18:10,380 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [641420551] [2022-11-20 16:18:10,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:18:10,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:18:10,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:18:10,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:18:10,411 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:18:10,411 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [641420551] [2022-11-20 16:18:10,412 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [641420551] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 16:18:10,412 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 16:18:10,412 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 16:18:10,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1626537707] [2022-11-20 16:18:10,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 16:18:10,412 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 16:18:10,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:18:10,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 16:18:10,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 16:18:10,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:18:10,413 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:18:10,413 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:18:10,414 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:18:10,414 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:18:10,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:18:10,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:18:10,853 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable191 [2022-11-20 16:18:10,853 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:18:10,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:18:10,853 INFO L85 PathProgramCache]: Analyzing trace with hash -2029792200, now seen corresponding path program 1 times [2022-11-20 16:18:10,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:18:10,854 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1196547459] [2022-11-20 16:18:10,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:18:10,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:18:10,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:18:10,900 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:18:10,900 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:18:10,900 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1196547459] [2022-11-20 16:18:10,900 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1196547459] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 16:18:10,900 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [408363331] [2022-11-20 16:18:10,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:18:10,901 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 16:18:10,901 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 [2022-11-20 16:18:10,902 INFO L229 MonitoredProcess]: Starting monitored process 101 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 16:18:10,905 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (101)] Waiting until timeout for monitored process [2022-11-20 16:18:11,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:18:11,801 INFO L263 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 16:18:11,802 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 16:18:11,831 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:18:11,831 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 16:18:11,866 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:18:11,866 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [408363331] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 16:18:11,866 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 16:18:11,866 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-11-20 16:18:11,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1754334086] [2022-11-20 16:18:11,866 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 16:18:11,867 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-20 16:18:11,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:18:11,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-20 16:18:11,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-20 16:18:11,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:18:11,868 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:18:11,868 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.4) internal successors, (74), 10 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:18:11,868 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:18:11,868 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:18:11,868 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:18:12,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:18:12,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:18:12,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:18:12,145 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (101)] Ended with exit code 0 [2022-11-20 16:18:12,337 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable192,101 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 16:18:12,337 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:18:12,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:18:12,337 INFO L85 PathProgramCache]: Analyzing trace with hash 432615999, now seen corresponding path program 1 times [2022-11-20 16:18:12,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:18:12,338 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1848841201] [2022-11-20 16:18:12,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:18:12,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:18:12,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:18:12,404 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-20 16:18:12,404 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:18:12,404 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1848841201] [2022-11-20 16:18:12,404 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1848841201] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 16:18:12,405 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 16:18:12,405 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 16:18:12,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814616584] [2022-11-20 16:18:12,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 16:18:12,405 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 16:18:12,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:18:12,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 16:18:12,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 16:18:12,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:18:12,406 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:18:12,406 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:18:12,406 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:18:12,406 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:18:12,406 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:18:12,407 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:18:12,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:18:12,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:18:12,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:18:12,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 16:18:12,647 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable193 [2022-11-20 16:18:12,647 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:18:12,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:18:12,647 INFO L85 PathProgramCache]: Analyzing trace with hash 1026952218, now seen corresponding path program 1 times [2022-11-20 16:18:12,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:18:12,647 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [436284157] [2022-11-20 16:18:12,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:18:12,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:18:12,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:18:12,688 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-20 16:18:12,688 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:18:12,688 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [436284157] [2022-11-20 16:18:12,688 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [436284157] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 16:18:12,688 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 16:18:12,688 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 16:18:12,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1868850813] [2022-11-20 16:18:12,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 16:18:12,689 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 16:18:12,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:18:12,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 16:18:12,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 16:18:12,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:18:12,690 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:18:12,690 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:18:12,690 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:18:12,690 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:18:12,690 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:18:12,690 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-11-20 16:18:12,690 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:18:13,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:18:13,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:18:13,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:18:13,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:18:13,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:18:13,117 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable194 [2022-11-20 16:18:13,117 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:18:13,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:18:13,117 INFO L85 PathProgramCache]: Analyzing trace with hash 999318265, now seen corresponding path program 1 times [2022-11-20 16:18:13,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:18:13,117 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1197687873] [2022-11-20 16:18:13,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:18:13,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:18:13,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:18:13,327 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-20 16:18:13,327 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:18:13,327 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1197687873] [2022-11-20 16:18:13,327 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1197687873] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 16:18:13,327 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1858508896] [2022-11-20 16:18:13,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:18:13,327 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 16:18:13,328 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 [2022-11-20 16:18:13,329 INFO L229 MonitoredProcess]: Starting monitored process 102 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 16:18:13,331 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (102)] Waiting until timeout for monitored process [2022-11-20 16:18:14,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:18:14,274 INFO L263 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-20 16:18:14,276 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 16:18:14,366 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-20 16:18:14,366 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 16:18:14,494 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-20 16:18:14,494 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1858508896] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 16:18:14,495 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 16:18:14,495 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 9, 9] total 19 [2022-11-20 16:18:14,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530980557] [2022-11-20 16:18:14,495 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 16:18:14,495 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-20 16:18:14,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:18:14,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-20 16:18:14,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=263, Unknown=0, NotChecked=0, Total=342 [2022-11-20 16:18:14,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:18:14,497 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:18:14,497 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 10.578947368421053) internal successors, (201), 19 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:18:14,497 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:18:14,497 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:18:14,497 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:18:14,497 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:18:14,497 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:18:14,497 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:18:15,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:18:15,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:18:15,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:18:15,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:18:15,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:18:15,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-20 16:18:15,356 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (102)] Ended with exit code 0 [2022-11-20 16:18:15,548 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable195,102 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 16:18:15,549 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:18:15,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:18:15,549 INFO L85 PathProgramCache]: Analyzing trace with hash 172490071, now seen corresponding path program 1 times [2022-11-20 16:18:15,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:18:15,549 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [834270738] [2022-11-20 16:18:15,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:18:15,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:18:15,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:18:15,839 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 217 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-20 16:18:15,839 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:18:15,839 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [834270738] [2022-11-20 16:18:15,839 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [834270738] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 16:18:15,839 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1114891977] [2022-11-20 16:18:15,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:18:15,840 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 16:18:15,840 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 [2022-11-20 16:18:15,841 INFO L229 MonitoredProcess]: Starting monitored process 103 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 16:18:15,843 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (103)] Waiting until timeout for monitored process [2022-11-20 16:18:16,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:18:16,855 INFO L263 TraceCheckSpWp]: Trace formula consists of 460 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-20 16:18:16,858 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 16:18:16,979 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 217 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-20 16:18:16,979 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 16:18:17,314 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 217 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-20 16:18:17,315 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1114891977] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 16:18:17,315 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 16:18:17,315 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 34 [2022-11-20 16:18:17,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [496237095] [2022-11-20 16:18:17,315 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 16:18:17,315 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-11-20 16:18:17,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:18:17,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-11-20 16:18:17,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2022-11-20 16:18:17,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:18:17,317 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:18:17,317 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 7.5) internal successors, (255), 34 states have internal predecessors, (255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:18:17,317 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:18:17,317 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:18:17,317 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:18:17,317 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:18:17,317 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:18:17,317 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-11-20 16:18:17,317 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:18:19,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:18:19,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:18:19,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:18:19,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:18:19,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:18:19,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-20 16:18:19,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-11-20 16:18:19,648 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (103)] Ended with exit code 0 [2022-11-20 16:18:19,848 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable196,103 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 16:18:19,848 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:18:19,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:18:19,849 INFO L85 PathProgramCache]: Analyzing trace with hash -913388701, now seen corresponding path program 1 times [2022-11-20 16:18:19,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:18:19,849 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [307987389] [2022-11-20 16:18:19,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:18:19,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:18:19,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:18:20,944 INFO L134 CoverageAnalysis]: Checked inductivity of 1073 backedges. 0 proven. 1065 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-20 16:18:20,945 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:18:20,945 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [307987389] [2022-11-20 16:18:20,945 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [307987389] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 16:18:20,945 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1883556237] [2022-11-20 16:18:20,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:18:20,945 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 16:18:20,945 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 [2022-11-20 16:18:20,946 INFO L229 MonitoredProcess]: Starting monitored process 104 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 16:18:20,949 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (104)] Waiting until timeout for monitored process [2022-11-20 16:18:21,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:18:21,982 INFO L263 TraceCheckSpWp]: Trace formula consists of 668 conjuncts, 32 conjunts are in the unsatisfiable core [2022-11-20 16:18:21,984 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 16:18:22,233 INFO L134 CoverageAnalysis]: Checked inductivity of 1073 backedges. 0 proven. 1065 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-20 16:18:22,234 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 16:18:23,463 INFO L134 CoverageAnalysis]: Checked inductivity of 1073 backedges. 0 proven. 1065 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-20 16:18:23,463 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1883556237] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 16:18:23,463 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 16:18:23,463 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33, 33] total 66 [2022-11-20 16:18:23,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [826058027] [2022-11-20 16:18:23,464 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 16:18:23,464 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 66 states [2022-11-20 16:18:23,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:18:23,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2022-11-20 16:18:23,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1122, Invalid=3168, Unknown=0, NotChecked=0, Total=4290 [2022-11-20 16:18:23,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:18:23,467 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:18:23,467 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 66 states, 66 states have (on average 6.287878787878788) internal successors, (415), 66 states have internal predecessors, (415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:18:23,467 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:18:23,467 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:18:23,467 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:18:23,468 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:18:23,468 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:18:23,468 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-11-20 16:18:23,468 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2022-11-20 16:18:23,468 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:18:27,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:18:27,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:18:27,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:18:27,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:18:27,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:18:27,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-20 16:18:27,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-11-20 16:18:27,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2022-11-20 16:18:27,661 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (104)] Ended with exit code 0 [2022-11-20 16:18:27,852 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable197,104 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 16:18:27,853 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:18:27,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:18:27,853 INFO L85 PathProgramCache]: Analyzing trace with hash 296621963, now seen corresponding path program 1 times [2022-11-20 16:18:27,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:18:27,853 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [905389493] [2022-11-20 16:18:27,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:18:27,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:18:27,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 16:18:27,906 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 16:18:27,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 16:18:27,973 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 16:18:27,973 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-20 16:18:27,973 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 7 remaining) [2022-11-20 16:18:27,974 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 7 remaining) [2022-11-20 16:18:27,974 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 7 remaining) [2022-11-20 16:18:27,974 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 7 remaining) [2022-11-20 16:18:27,974 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 7 remaining) [2022-11-20 16:18:27,974 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (1 of 7 remaining) [2022-11-20 16:18:27,975 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK (0 of 7 remaining) [2022-11-20 16:18:27,975 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable198 [2022-11-20 16:18:27,979 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 16:18:27,979 WARN L233 ceAbstractionStarter]: 25 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-20 16:18:27,979 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 26 thread instances. [2022-11-20 16:18:28,065 INFO L144 ThreadInstanceAdder]: Constructed 26 joinOtherThreadTransitions. [2022-11-20 16:18:28,072 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 16:18:28,072 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-11-20 16:18:28,072 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 [2022-11-20 16:18:28,074 INFO L229 MonitoredProcess]: Starting monitored process 105 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-11-20 16:18:28,085 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-11-20 16:18:28,085 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2022-11-20 16:18:28,086 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@46174585, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 16:18:28,086 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-11-20 16:18:28,098 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (105)] Waiting until timeout for monitored process [2022-11-20 16:18:28,113 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:18:28,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:18:28,114 INFO L85 PathProgramCache]: Analyzing trace with hash -1775996946, now seen corresponding path program 1 times [2022-11-20 16:18:28,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:18:28,114 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [11986903] [2022-11-20 16:18:28,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:18:28,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:18:28,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:18:28,131 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:18:28,132 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:18:28,132 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [11986903] [2022-11-20 16:18:28,132 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [11986903] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 16:18:28,132 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 16:18:28,132 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 16:18:28,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [630208802] [2022-11-20 16:18:28,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 16:18:28,132 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-20 16:18:28,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:18:28,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-20 16:18:28,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-20 16:18:28,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:18:28,133 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:18:28,133 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:18:28,133 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:18:28,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:18:28,134 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable199 [2022-11-20 16:18:28,134 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:18:28,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:18:28,135 INFO L85 PathProgramCache]: Analyzing trace with hash -1369215965, now seen corresponding path program 1 times [2022-11-20 16:18:28,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:18:28,135 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [539852844] [2022-11-20 16:18:28,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:18:28,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:18:28,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:18:28,164 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:18:28,164 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:18:28,165 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [539852844] [2022-11-20 16:18:28,165 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [539852844] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 16:18:28,165 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 16:18:28,165 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 16:18:28,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084127359] [2022-11-20 16:18:28,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 16:18:28,165 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 16:18:28,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:18:28,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 16:18:28,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 16:18:28,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:18:28,166 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:18:28,166 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:18:28,166 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:18:28,167 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:18:28,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:18:28,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:18:28,710 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable200 [2022-11-20 16:18:28,710 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:18:28,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:18:28,711 INFO L85 PathProgramCache]: Analyzing trace with hash 1092140188, now seen corresponding path program 1 times [2022-11-20 16:18:28,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:18:28,711 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1188495779] [2022-11-20 16:18:28,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:18:28,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:18:28,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:18:28,753 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:18:28,753 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:18:28,753 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1188495779] [2022-11-20 16:18:28,753 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1188495779] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 16:18:28,754 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1337656538] [2022-11-20 16:18:28,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:18:28,754 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 16:18:28,754 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 [2022-11-20 16:18:28,762 INFO L229 MonitoredProcess]: Starting monitored process 106 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 16:18:28,765 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (106)] Waiting until timeout for monitored process [2022-11-20 16:18:29,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:18:29,724 INFO L263 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 16:18:29,725 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 16:18:29,749 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:18:29,749 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 16:18:29,782 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:18:29,782 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1337656538] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 16:18:29,782 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 16:18:29,782 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-11-20 16:18:29,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1118296172] [2022-11-20 16:18:29,783 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 16:18:29,783 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-20 16:18:29,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:18:29,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-20 16:18:29,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-20 16:18:29,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:18:29,784 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:18:29,784 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.4) internal successors, (74), 10 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:18:29,784 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:18:29,784 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:18:29,784 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:18:30,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:18:30,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:18:30,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:18:30,044 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (106)] Ended with exit code 0 [2022-11-20 16:18:30,236 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 106 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable201 [2022-11-20 16:18:30,236 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:18:30,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:18:30,236 INFO L85 PathProgramCache]: Analyzing trace with hash -290410645, now seen corresponding path program 1 times [2022-11-20 16:18:30,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:18:30,237 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1338575117] [2022-11-20 16:18:30,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:18:30,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:18:30,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:18:30,305 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-20 16:18:30,305 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:18:30,306 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1338575117] [2022-11-20 16:18:30,306 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1338575117] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 16:18:30,306 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 16:18:30,306 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 16:18:30,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969105293] [2022-11-20 16:18:30,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 16:18:30,307 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 16:18:30,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:18:30,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 16:18:30,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 16:18:30,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:18:30,308 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:18:30,308 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:18:30,308 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:18:30,308 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:18:30,308 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:18:30,308 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:18:30,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:18:30,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:18:30,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:18:30,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 16:18:30,587 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable202 [2022-11-20 16:18:30,587 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:18:30,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:18:30,588 INFO L85 PathProgramCache]: Analyzing trace with hash 1258562930, now seen corresponding path program 1 times [2022-11-20 16:18:30,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:18:30,588 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1371901861] [2022-11-20 16:18:30,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:18:30,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:18:30,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:18:30,630 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-20 16:18:30,631 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:18:30,631 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1371901861] [2022-11-20 16:18:30,631 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1371901861] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 16:18:30,631 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 16:18:30,631 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 16:18:30,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1928032597] [2022-11-20 16:18:30,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 16:18:30,631 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 16:18:30,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:18:30,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 16:18:30,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 16:18:30,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:18:30,633 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:18:30,633 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:18:30,633 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:18:30,633 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:18:30,633 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:18:30,633 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-11-20 16:18:30,633 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:18:31,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:18:31,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:18:31,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:18:31,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:18:31,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:18:31,030 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable203 [2022-11-20 16:18:31,031 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:18:31,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:18:31,031 INFO L85 PathProgramCache]: Analyzing trace with hash -435714520, now seen corresponding path program 1 times [2022-11-20 16:18:31,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:18:31,031 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1807030971] [2022-11-20 16:18:31,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:18:31,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:18:31,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:18:31,103 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-20 16:18:31,103 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:18:31,103 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1807030971] [2022-11-20 16:18:31,103 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1807030971] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 16:18:31,104 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1700276709] [2022-11-20 16:18:31,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:18:31,104 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 16:18:31,104 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 [2022-11-20 16:18:31,105 INFO L229 MonitoredProcess]: Starting monitored process 107 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 16:18:31,108 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (107)] Waiting until timeout for monitored process [2022-11-20 16:18:32,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:18:32,081 INFO L263 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-20 16:18:32,083 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 16:18:32,176 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-20 16:18:32,176 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 16:18:32,308 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-20 16:18:32,308 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1700276709] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 16:18:32,308 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 16:18:32,309 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 9, 9] total 19 [2022-11-20 16:18:32,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120184278] [2022-11-20 16:18:32,309 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 16:18:32,310 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-20 16:18:32,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:18:32,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-20 16:18:32,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=263, Unknown=0, NotChecked=0, Total=342 [2022-11-20 16:18:32,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:18:32,311 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:18:32,311 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 10.578947368421053) internal successors, (201), 19 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:18:32,311 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:18:32,311 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:18:32,311 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:18:32,311 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:18:32,311 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:18:32,311 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:18:33,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:18:33,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:18:33,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:18:33,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:18:33,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:18:33,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-20 16:18:33,198 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (107)] Ended with exit code 0 [2022-11-20 16:18:33,389 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable204,107 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 16:18:33,390 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:18:33,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:18:33,390 INFO L85 PathProgramCache]: Analyzing trace with hash 93397631, now seen corresponding path program 1 times [2022-11-20 16:18:33,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:18:33,390 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [31290607] [2022-11-20 16:18:33,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:18:33,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:18:33,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:18:33,814 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 217 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-20 16:18:33,814 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:18:33,814 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [31290607] [2022-11-20 16:18:33,814 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [31290607] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 16:18:33,814 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [474141591] [2022-11-20 16:18:33,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:18:33,815 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 16:18:33,815 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 [2022-11-20 16:18:33,816 INFO L229 MonitoredProcess]: Starting monitored process 108 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 16:18:33,839 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (108)] Waiting until timeout for monitored process [2022-11-20 16:18:34,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:18:34,948 INFO L263 TraceCheckSpWp]: Trace formula consists of 460 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-20 16:18:34,950 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 16:18:35,068 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 217 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-20 16:18:35,068 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 16:18:35,410 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 217 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-20 16:18:35,410 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [474141591] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 16:18:35,410 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 16:18:35,410 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 34 [2022-11-20 16:18:35,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [595682542] [2022-11-20 16:18:35,410 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 16:18:35,411 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-11-20 16:18:35,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:18:35,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-11-20 16:18:35,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2022-11-20 16:18:35,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:18:35,413 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:18:35,413 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 7.5) internal successors, (255), 34 states have internal predecessors, (255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:18:35,413 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:18:35,413 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:18:35,413 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:18:35,413 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:18:35,413 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:18:35,413 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-11-20 16:18:35,413 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:18:37,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:18:37,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:18:37,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:18:37,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:18:37,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:18:37,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-20 16:18:37,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-11-20 16:18:37,764 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (108)] Forceful destruction successful, exit code 0 [2022-11-20 16:18:37,955 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable205,108 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 16:18:37,956 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:18:37,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:18:37,956 INFO L85 PathProgramCache]: Analyzing trace with hash -1355938709, now seen corresponding path program 1 times [2022-11-20 16:18:37,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:18:37,956 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [687955930] [2022-11-20 16:18:37,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:18:37,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:18:38,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:18:38,793 INFO L134 CoverageAnalysis]: Checked inductivity of 1073 backedges. 0 proven. 1065 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-20 16:18:38,794 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:18:38,794 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [687955930] [2022-11-20 16:18:38,794 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [687955930] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 16:18:38,794 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1790896704] [2022-11-20 16:18:38,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:18:38,794 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 16:18:38,794 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 [2022-11-20 16:18:38,795 INFO L229 MonitoredProcess]: Starting monitored process 109 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 16:18:38,798 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (109)] Waiting until timeout for monitored process [2022-11-20 16:18:39,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:18:39,847 INFO L263 TraceCheckSpWp]: Trace formula consists of 668 conjuncts, 32 conjunts are in the unsatisfiable core [2022-11-20 16:18:39,850 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 16:18:40,091 INFO L134 CoverageAnalysis]: Checked inductivity of 1073 backedges. 0 proven. 1065 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-20 16:18:40,091 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 16:18:41,258 INFO L134 CoverageAnalysis]: Checked inductivity of 1073 backedges. 0 proven. 1065 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-20 16:18:41,259 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1790896704] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 16:18:41,259 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 16:18:41,259 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33, 33] total 66 [2022-11-20 16:18:41,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [571089528] [2022-11-20 16:18:41,259 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 16:18:41,260 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 66 states [2022-11-20 16:18:41,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:18:41,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2022-11-20 16:18:41,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1122, Invalid=3168, Unknown=0, NotChecked=0, Total=4290 [2022-11-20 16:18:41,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:18:41,261 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:18:41,262 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 66 states, 66 states have (on average 6.287878787878788) internal successors, (415), 66 states have internal predecessors, (415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:18:41,262 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:18:41,262 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:18:41,262 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:18:41,262 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:18:41,262 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:18:41,262 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-11-20 16:18:41,262 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2022-11-20 16:18:41,262 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:18:45,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:18:45,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:18:45,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:18:45,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:18:45,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:18:45,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-20 16:18:45,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-11-20 16:18:45,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 81 states. [2022-11-20 16:18:45,959 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (109)] Ended with exit code 0 [2022-11-20 16:18:46,147 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 109 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable206 [2022-11-20 16:18:46,147 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:18:46,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:18:46,147 INFO L85 PathProgramCache]: Analyzing trace with hash 372951079, now seen corresponding path program 1 times [2022-11-20 16:18:46,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:18:46,148 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [58281385] [2022-11-20 16:18:46,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:18:46,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:18:46,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 16:18:46,207 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 16:18:46,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 16:18:46,312 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 16:18:46,313 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-20 16:18:46,313 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 7 remaining) [2022-11-20 16:18:46,313 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 7 remaining) [2022-11-20 16:18:46,313 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 7 remaining) [2022-11-20 16:18:46,313 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 7 remaining) [2022-11-20 16:18:46,313 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 7 remaining) [2022-11-20 16:18:46,313 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (1 of 7 remaining) [2022-11-20 16:18:46,314 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK (0 of 7 remaining) [2022-11-20 16:18:46,314 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable207 [2022-11-20 16:18:46,317 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 16:18:46,318 WARN L233 ceAbstractionStarter]: 26 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-20 16:18:46,318 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 27 thread instances. [2022-11-20 16:18:46,402 INFO L144 ThreadInstanceAdder]: Constructed 27 joinOtherThreadTransitions. [2022-11-20 16:18:46,411 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 16:18:46,411 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-11-20 16:18:46,411 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 [2022-11-20 16:18:46,412 INFO L229 MonitoredProcess]: Starting monitored process 110 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-11-20 16:18:46,413 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (110)] Waiting until timeout for monitored process [2022-11-20 16:18:46,416 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-11-20 16:18:46,417 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2022-11-20 16:18:46,417 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@46174585, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 16:18:46,417 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-11-20 16:18:46,448 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:18:46,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:18:46,449 INFO L85 PathProgramCache]: Analyzing trace with hash -1527850514, now seen corresponding path program 1 times [2022-11-20 16:18:46,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:18:46,449 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [703340730] [2022-11-20 16:18:46,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:18:46,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:18:46,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:18:46,468 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:18:46,469 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:18:46,469 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [703340730] [2022-11-20 16:18:46,469 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [703340730] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 16:18:46,469 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 16:18:46,469 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 16:18:46,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [570803599] [2022-11-20 16:18:46,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 16:18:46,469 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-20 16:18:46,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:18:46,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-20 16:18:46,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-20 16:18:46,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:18:46,470 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:18:46,470 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:18:46,470 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:18:46,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:18:46,471 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable208 [2022-11-20 16:18:46,472 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:18:46,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:18:46,472 INFO L85 PathProgramCache]: Analyzing trace with hash 876363427, now seen corresponding path program 1 times [2022-11-20 16:18:46,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:18:46,472 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [709852053] [2022-11-20 16:18:46,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:18:46,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:18:46,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:18:46,502 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:18:46,502 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:18:46,502 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [709852053] [2022-11-20 16:18:46,502 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [709852053] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 16:18:46,503 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 16:18:46,503 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 16:18:46,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1834979466] [2022-11-20 16:18:46,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 16:18:46,503 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 16:18:46,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:18:46,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 16:18:46,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 16:18:46,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:18:46,504 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:18:46,504 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:18:46,504 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:18:46,504 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:18:46,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:18:46,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:18:46,902 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable209 [2022-11-20 16:18:46,902 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:18:46,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:18:46,902 INFO L85 PathProgramCache]: Analyzing trace with hash -180062976, now seen corresponding path program 1 times [2022-11-20 16:18:46,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:18:46,902 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [264300187] [2022-11-20 16:18:46,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:18:46,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:18:46,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:18:46,959 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:18:46,959 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:18:46,960 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [264300187] [2022-11-20 16:18:46,960 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [264300187] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 16:18:46,960 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1577748871] [2022-11-20 16:18:46,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:18:46,960 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 16:18:46,961 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 [2022-11-20 16:18:46,965 INFO L229 MonitoredProcess]: Starting monitored process 111 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 16:18:46,979 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (111)] Waiting until timeout for monitored process [2022-11-20 16:18:48,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:18:48,007 INFO L263 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 16:18:48,007 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 16:18:48,033 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:18:48,033 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 16:18:48,068 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:18:48,068 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1577748871] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 16:18:48,068 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 16:18:48,068 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-11-20 16:18:48,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [950282284] [2022-11-20 16:18:48,069 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 16:18:48,069 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-20 16:18:48,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:18:48,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-20 16:18:48,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-20 16:18:48,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:18:48,070 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:18:48,070 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.4) internal successors, (74), 10 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:18:48,070 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:18:48,070 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:18:48,070 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:18:48,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:18:48,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:18:48,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:18:48,366 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (111)] Ended with exit code 0 [2022-11-20 16:18:48,557 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable210,111 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 16:18:48,557 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:18:48,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:18:48,558 INFO L85 PathProgramCache]: Analyzing trace with hash -1620226921, now seen corresponding path program 1 times [2022-11-20 16:18:48,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:18:48,558 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1787212373] [2022-11-20 16:18:48,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:18:48,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:18:48,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:18:48,655 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-20 16:18:48,655 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:18:48,655 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1787212373] [2022-11-20 16:18:48,656 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1787212373] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 16:18:48,656 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 16:18:48,656 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 16:18:48,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1087211741] [2022-11-20 16:18:48,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 16:18:48,657 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 16:18:48,657 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:18:48,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 16:18:48,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 16:18:48,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:18:48,658 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:18:48,659 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:18:48,659 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:18:48,659 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:18:48,659 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:18:48,659 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:18:48,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:18:48,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:18:48,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:18:48,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 16:18:48,930 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable211 [2022-11-20 16:18:48,931 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:18:48,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:18:48,931 INFO L85 PathProgramCache]: Analyzing trace with hash -560922870, now seen corresponding path program 1 times [2022-11-20 16:18:48,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:18:48,931 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [300478310] [2022-11-20 16:18:48,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:18:48,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:18:48,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:18:48,974 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-20 16:18:48,974 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:18:48,974 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [300478310] [2022-11-20 16:18:48,975 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [300478310] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 16:18:48,975 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 16:18:48,975 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 16:18:48,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1446872059] [2022-11-20 16:18:48,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 16:18:48,975 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 16:18:48,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:18:48,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 16:18:48,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 16:18:48,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:18:48,976 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:18:48,976 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:18:48,976 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:18:48,977 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:18:48,977 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:18:48,977 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-11-20 16:18:48,977 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:18:49,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:18:49,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:18:49,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:18:49,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:18:49,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:18:49,438 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable212 [2022-11-20 16:18:49,438 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:18:49,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:18:49,439 INFO L85 PathProgramCache]: Analyzing trace with hash -1474390953, now seen corresponding path program 1 times [2022-11-20 16:18:49,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:18:49,439 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [262789330] [2022-11-20 16:18:49,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:18:49,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:18:49,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:18:49,517 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-20 16:18:49,517 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:18:49,517 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [262789330] [2022-11-20 16:18:49,518 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [262789330] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 16:18:49,518 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1898391851] [2022-11-20 16:18:49,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:18:49,518 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 16:18:49,518 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 [2022-11-20 16:18:49,519 INFO L229 MonitoredProcess]: Starting monitored process 112 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 16:18:49,522 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (112)] Waiting until timeout for monitored process [2022-11-20 16:18:50,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:18:50,609 INFO L263 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-20 16:18:50,610 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 16:18:50,707 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-20 16:18:50,707 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 16:18:50,840 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-20 16:18:50,841 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1898391851] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 16:18:50,841 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 16:18:50,841 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 9, 9] total 19 [2022-11-20 16:18:50,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [46402206] [2022-11-20 16:18:50,841 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 16:18:50,842 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-20 16:18:50,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:18:50,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-20 16:18:50,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=263, Unknown=0, NotChecked=0, Total=342 [2022-11-20 16:18:50,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:18:50,843 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:18:50,843 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 10.578947368421053) internal successors, (201), 19 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:18:50,843 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:18:50,843 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:18:50,843 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:18:50,843 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:18:50,843 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:18:50,843 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:18:51,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:18:51,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:18:51,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:18:51,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:18:51,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:18:51,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-20 16:18:51,917 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (112)] Forceful destruction successful, exit code 0 [2022-11-20 16:18:52,107 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 112 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable213 [2022-11-20 16:18:52,108 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:18:52,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:18:52,108 INFO L85 PathProgramCache]: Analyzing trace with hash -573572377, now seen corresponding path program 1 times [2022-11-20 16:18:52,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:18:52,108 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [811890896] [2022-11-20 16:18:52,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:18:52,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:18:52,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:18:52,404 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 217 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-20 16:18:52,404 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:18:52,404 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [811890896] [2022-11-20 16:18:52,404 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [811890896] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 16:18:52,405 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [686763899] [2022-11-20 16:18:52,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:18:52,405 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 16:18:52,405 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 [2022-11-20 16:18:52,406 INFO L229 MonitoredProcess]: Starting monitored process 113 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 16:18:52,409 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (113)] Waiting until timeout for monitored process [2022-11-20 16:18:53,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:18:53,592 INFO L263 TraceCheckSpWp]: Trace formula consists of 460 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-20 16:18:53,594 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 16:18:53,727 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 217 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-20 16:18:53,727 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 16:18:54,083 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 217 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-20 16:18:54,083 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [686763899] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 16:18:54,083 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 16:18:54,083 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 34 [2022-11-20 16:18:54,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1970627136] [2022-11-20 16:18:54,083 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 16:18:54,084 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-11-20 16:18:54,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:18:54,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-11-20 16:18:54,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2022-11-20 16:18:54,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:18:54,085 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:18:54,085 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 7.5) internal successors, (255), 34 states have internal predecessors, (255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:18:54,085 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:18:54,085 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:18:54,085 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:18:54,085 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:18:54,085 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:18:54,085 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-11-20 16:18:54,086 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:18:56,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:18:56,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:18:56,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:18:56,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:18:56,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:18:56,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-20 16:18:56,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-11-20 16:18:56,587 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (113)] Forceful destruction successful, exit code 0 [2022-11-20 16:18:56,777 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable214,113 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 16:18:56,778 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:18:56,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:18:56,778 INFO L85 PathProgramCache]: Analyzing trace with hash 1484445875, now seen corresponding path program 1 times [2022-11-20 16:18:56,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:18:56,778 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [545331604] [2022-11-20 16:18:56,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:18:56,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:18:56,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:18:57,697 INFO L134 CoverageAnalysis]: Checked inductivity of 1073 backedges. 0 proven. 1065 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-20 16:18:57,697 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:18:57,697 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [545331604] [2022-11-20 16:18:57,697 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [545331604] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 16:18:57,698 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1410259485] [2022-11-20 16:18:57,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:18:57,698 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 16:18:57,698 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 [2022-11-20 16:18:57,699 INFO L229 MonitoredProcess]: Starting monitored process 114 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 16:18:57,705 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (114)] Waiting until timeout for monitored process [2022-11-20 16:18:59,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:18:59,080 INFO L263 TraceCheckSpWp]: Trace formula consists of 668 conjuncts, 32 conjunts are in the unsatisfiable core [2022-11-20 16:18:59,082 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 16:18:59,320 INFO L134 CoverageAnalysis]: Checked inductivity of 1073 backedges. 0 proven. 1065 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-20 16:18:59,320 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 16:19:00,526 INFO L134 CoverageAnalysis]: Checked inductivity of 1073 backedges. 0 proven. 1065 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-20 16:19:00,526 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1410259485] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 16:19:00,526 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 16:19:00,526 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33, 33] total 66 [2022-11-20 16:19:00,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1858017625] [2022-11-20 16:19:00,527 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 16:19:00,527 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 66 states [2022-11-20 16:19:00,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:19:00,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2022-11-20 16:19:00,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1122, Invalid=3168, Unknown=0, NotChecked=0, Total=4290 [2022-11-20 16:19:00,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:19:00,529 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:19:00,529 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 66 states, 66 states have (on average 6.287878787878788) internal successors, (415), 66 states have internal predecessors, (415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:19:00,529 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:19:00,529 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:19:00,529 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:19:00,529 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:19:00,529 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:19:00,529 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-11-20 16:19:00,529 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2022-11-20 16:19:00,530 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:19:06,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:19:06,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:19:06,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:19:06,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:19:06,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:19:06,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-20 16:19:06,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-11-20 16:19:06,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 84 states. [2022-11-20 16:19:06,439 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (114)] Forceful destruction successful, exit code 0 [2022-11-20 16:19:06,629 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 114 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable215 [2022-11-20 16:19:06,629 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:19:06,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:19:06,629 INFO L85 PathProgramCache]: Analyzing trace with hash 1240639484, now seen corresponding path program 1 times [2022-11-20 16:19:06,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:19:06,630 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1726004141] [2022-11-20 16:19:06,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:19:06,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:19:06,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 16:19:06,686 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 16:19:06,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 16:19:06,766 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 16:19:06,766 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-20 16:19:06,766 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 7 remaining) [2022-11-20 16:19:06,766 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 7 remaining) [2022-11-20 16:19:06,766 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 7 remaining) [2022-11-20 16:19:06,767 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 7 remaining) [2022-11-20 16:19:06,767 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 7 remaining) [2022-11-20 16:19:06,767 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (1 of 7 remaining) [2022-11-20 16:19:06,767 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK (0 of 7 remaining) [2022-11-20 16:19:06,767 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable216 [2022-11-20 16:19:06,773 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 16:19:06,773 WARN L233 ceAbstractionStarter]: 27 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-20 16:19:06,774 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 28 thread instances. [2022-11-20 16:19:06,865 INFO L144 ThreadInstanceAdder]: Constructed 28 joinOtherThreadTransitions. [2022-11-20 16:19:06,872 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 16:19:06,873 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-11-20 16:19:06,873 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 [2022-11-20 16:19:06,874 INFO L229 MonitoredProcess]: Starting monitored process 115 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-11-20 16:19:06,879 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (115)] Waiting until timeout for monitored process [2022-11-20 16:19:06,882 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-11-20 16:19:06,882 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2022-11-20 16:19:06,882 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@46174585, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 16:19:06,883 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-11-20 16:19:06,908 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:19:06,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:19:06,909 INFO L85 PathProgramCache]: Analyzing trace with hash 603841518, now seen corresponding path program 1 times [2022-11-20 16:19:06,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:19:06,909 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1761520314] [2022-11-20 16:19:06,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:19:06,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:19:06,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:19:06,932 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:19:06,932 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:19:06,932 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1761520314] [2022-11-20 16:19:06,932 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1761520314] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 16:19:06,932 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 16:19:06,932 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 16:19:06,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1497945478] [2022-11-20 16:19:06,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 16:19:06,933 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-20 16:19:06,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:19:06,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-20 16:19:06,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-20 16:19:06,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:19:06,934 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:19:06,934 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:19:06,934 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:19:06,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:19:06,935 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable217 [2022-11-20 16:19:06,935 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:19:06,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:19:06,935 INFO L85 PathProgramCache]: Analyzing trace with hash 733067555, now seen corresponding path program 1 times [2022-11-20 16:19:06,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:19:06,935 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [342652048] [2022-11-20 16:19:06,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:19:06,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:19:06,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:19:06,972 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:19:06,972 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:19:06,972 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [342652048] [2022-11-20 16:19:06,973 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [342652048] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 16:19:06,973 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 16:19:06,973 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 16:19:06,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1605145219] [2022-11-20 16:19:06,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 16:19:06,974 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 16:19:06,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:19:06,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 16:19:06,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 16:19:06,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:19:06,975 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:19:06,975 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:19:06,975 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:19:06,975 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:19:07,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:19:07,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:19:07,549 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable218 [2022-11-20 16:19:07,549 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:19:07,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:19:07,550 INFO L85 PathProgramCache]: Analyzing trace with hash -1551434396, now seen corresponding path program 1 times [2022-11-20 16:19:07,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:19:07,550 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [200422319] [2022-11-20 16:19:07,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:19:07,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:19:07,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:19:07,596 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:19:07,596 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:19:07,596 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [200422319] [2022-11-20 16:19:07,596 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [200422319] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 16:19:07,597 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [260566675] [2022-11-20 16:19:07,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:19:07,597 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 16:19:07,597 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 [2022-11-20 16:19:07,599 INFO L229 MonitoredProcess]: Starting monitored process 116 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 16:19:07,600 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (116)] Waiting until timeout for monitored process [2022-11-20 16:19:08,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:19:08,622 INFO L263 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 16:19:08,622 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 16:19:08,646 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:19:08,646 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 16:19:08,678 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:19:08,678 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [260566675] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 16:19:08,679 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 16:19:08,679 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-11-20 16:19:08,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529659380] [2022-11-20 16:19:08,679 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 16:19:08,679 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-20 16:19:08,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:19:08,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-20 16:19:08,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-20 16:19:08,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:19:08,680 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:19:08,680 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.4) internal successors, (74), 10 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:19:08,680 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:19:08,681 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:19:08,681 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:19:08,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:19:08,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:19:08,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:19:08,970 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (116)] Ended with exit code 0 [2022-11-20 16:19:09,163 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable219,116 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 16:19:09,163 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:19:09,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:19:09,163 INFO L85 PathProgramCache]: Analyzing trace with hash 738134467, now seen corresponding path program 1 times [2022-11-20 16:19:09,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:19:09,164 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [614655754] [2022-11-20 16:19:09,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:19:09,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:19:09,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:19:09,249 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-20 16:19:09,249 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:19:09,249 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [614655754] [2022-11-20 16:19:09,249 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [614655754] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 16:19:09,249 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 16:19:09,249 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 16:19:09,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [94390865] [2022-11-20 16:19:09,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 16:19:09,250 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 16:19:09,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:19:09,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 16:19:09,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 16:19:09,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:19:09,251 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:19:09,251 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:19:09,251 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:19:09,251 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:19:09,251 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:19:09,251 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:19:09,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:19:09,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:19:09,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:19:09,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 16:19:09,490 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable220 [2022-11-20 16:19:09,490 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:19:09,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:19:09,490 INFO L85 PathProgramCache]: Analyzing trace with hash -136537886, now seen corresponding path program 1 times [2022-11-20 16:19:09,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:19:09,490 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [345206490] [2022-11-20 16:19:09,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:19:09,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:19:09,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:19:09,531 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-20 16:19:09,531 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:19:09,531 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [345206490] [2022-11-20 16:19:09,531 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [345206490] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 16:19:09,531 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 16:19:09,531 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 16:19:09,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1195427956] [2022-11-20 16:19:09,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 16:19:09,532 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 16:19:09,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:19:09,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 16:19:09,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 16:19:09,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:19:09,533 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:19:09,533 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:19:09,533 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:19:09,533 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:19:09,533 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:19:09,533 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-11-20 16:19:09,533 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:19:09,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:19:09,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:19:09,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:19:09,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:19:09,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:19:09,977 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable221 [2022-11-20 16:19:09,977 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:19:09,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:19:09,978 INFO L85 PathProgramCache]: Analyzing trace with hash -957372154, now seen corresponding path program 1 times [2022-11-20 16:19:09,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:19:09,978 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [73869460] [2022-11-20 16:19:09,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:19:09,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:19:10,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:19:10,053 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-20 16:19:10,054 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:19:10,054 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [73869460] [2022-11-20 16:19:10,054 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [73869460] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 16:19:10,054 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [936111342] [2022-11-20 16:19:10,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:19:10,054 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 16:19:10,054 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 [2022-11-20 16:19:10,055 INFO L229 MonitoredProcess]: Starting monitored process 117 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 16:19:10,058 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (117)] Waiting until timeout for monitored process [2022-11-20 16:19:11,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:19:11,163 INFO L263 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-20 16:19:11,164 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 16:19:11,259 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-20 16:19:11,260 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 16:19:11,407 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-20 16:19:11,407 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [936111342] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 16:19:11,408 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 16:19:11,408 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 9, 9] total 19 [2022-11-20 16:19:11,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [69853561] [2022-11-20 16:19:11,408 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 16:19:11,408 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-20 16:19:11,408 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:19:11,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-20 16:19:11,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=263, Unknown=0, NotChecked=0, Total=342 [2022-11-20 16:19:11,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:19:11,410 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:19:11,410 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 10.578947368421053) internal successors, (201), 19 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:19:11,410 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:19:11,410 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:19:11,410 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:19:11,410 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:19:11,410 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:19:11,410 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:19:12,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:19:12,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:19:12,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:19:12,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:19:12,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:19:12,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-20 16:19:12,325 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (117)] Ended with exit code 0 [2022-11-20 16:19:12,515 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 117 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable222 [2022-11-20 16:19:12,516 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:19:12,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:19:12,516 INFO L85 PathProgramCache]: Analyzing trace with hash 333499279, now seen corresponding path program 1 times [2022-11-20 16:19:12,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:19:12,516 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1386275203] [2022-11-20 16:19:12,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:19:12,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:19:12,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:19:12,804 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 217 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-20 16:19:12,804 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:19:12,804 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1386275203] [2022-11-20 16:19:12,804 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1386275203] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 16:19:12,804 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [335382206] [2022-11-20 16:19:12,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:19:12,805 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 16:19:12,805 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 [2022-11-20 16:19:12,806 INFO L229 MonitoredProcess]: Starting monitored process 118 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 16:19:12,808 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (118)] Waiting until timeout for monitored process [2022-11-20 16:19:13,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:19:13,980 INFO L263 TraceCheckSpWp]: Trace formula consists of 460 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-20 16:19:13,981 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 16:19:14,103 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 217 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-20 16:19:14,103 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 16:19:14,450 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 217 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-20 16:19:14,450 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [335382206] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 16:19:14,450 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 16:19:14,451 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 34 [2022-11-20 16:19:14,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1250479684] [2022-11-20 16:19:14,451 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 16:19:14,451 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-11-20 16:19:14,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:19:14,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-11-20 16:19:14,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2022-11-20 16:19:14,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:19:14,453 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:19:14,453 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 7.5) internal successors, (255), 34 states have internal predecessors, (255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:19:14,453 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:19:14,453 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:19:14,453 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:19:14,453 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:19:14,453 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:19:14,453 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-11-20 16:19:14,454 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:19:16,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:19:16,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:19:16,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:19:16,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:19:16,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:19:16,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-20 16:19:16,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-11-20 16:19:16,589 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (118)] Forceful destruction successful, exit code 0 [2022-11-20 16:19:16,778 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable223,118 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 16:19:16,779 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:19:16,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:19:16,779 INFO L85 PathProgramCache]: Analyzing trace with hash 1256081083, now seen corresponding path program 1 times [2022-11-20 16:19:16,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:19:16,779 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1002549812] [2022-11-20 16:19:16,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:19:16,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:19:16,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:19:17,873 INFO L134 CoverageAnalysis]: Checked inductivity of 1073 backedges. 0 proven. 1065 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-20 16:19:17,873 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:19:17,873 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1002549812] [2022-11-20 16:19:17,873 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1002549812] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 16:19:17,873 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [496057234] [2022-11-20 16:19:17,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:19:17,874 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 16:19:17,874 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 [2022-11-20 16:19:17,875 INFO L229 MonitoredProcess]: Starting monitored process 119 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 16:19:17,877 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (119)] Waiting until timeout for monitored process [2022-11-20 16:19:19,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:19:19,032 INFO L263 TraceCheckSpWp]: Trace formula consists of 668 conjuncts, 32 conjunts are in the unsatisfiable core [2022-11-20 16:19:19,034 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 16:19:19,257 INFO L134 CoverageAnalysis]: Checked inductivity of 1073 backedges. 0 proven. 1065 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-20 16:19:19,257 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 16:19:20,396 INFO L134 CoverageAnalysis]: Checked inductivity of 1073 backedges. 0 proven. 1065 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-20 16:19:20,396 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [496057234] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 16:19:20,396 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 16:19:20,396 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33, 33] total 66 [2022-11-20 16:19:20,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2142277908] [2022-11-20 16:19:20,396 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 16:19:20,397 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 66 states [2022-11-20 16:19:20,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:19:20,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2022-11-20 16:19:20,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1122, Invalid=3168, Unknown=0, NotChecked=0, Total=4290 [2022-11-20 16:19:20,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:19:20,399 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:19:20,399 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 66 states, 66 states have (on average 6.287878787878788) internal successors, (415), 66 states have internal predecessors, (415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:19:20,399 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:19:20,399 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:19:20,399 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:19:20,399 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:19:20,399 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:19:20,399 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-11-20 16:19:20,400 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2022-11-20 16:19:20,400 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:19:24,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:19:24,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:19:24,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:19:24,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:19:24,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:19:24,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-20 16:19:24,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-11-20 16:19:24,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 87 states. [2022-11-20 16:19:24,904 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (119)] Forceful destruction successful, exit code 0 [2022-11-20 16:19:25,094 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 119 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable224 [2022-11-20 16:19:25,094 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:19:25,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:19:25,095 INFO L85 PathProgramCache]: Analyzing trace with hash -404322102, now seen corresponding path program 1 times [2022-11-20 16:19:25,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:19:25,095 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [459730409] [2022-11-20 16:19:25,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:19:25,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:19:25,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 16:19:25,157 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 16:19:25,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 16:19:25,259 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 16:19:25,259 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-20 16:19:25,259 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 7 remaining) [2022-11-20 16:19:25,260 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 7 remaining) [2022-11-20 16:19:25,260 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 7 remaining) [2022-11-20 16:19:25,260 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 7 remaining) [2022-11-20 16:19:25,260 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 7 remaining) [2022-11-20 16:19:25,260 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (1 of 7 remaining) [2022-11-20 16:19:25,261 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK (0 of 7 remaining) [2022-11-20 16:19:25,261 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable225 [2022-11-20 16:19:25,265 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 16:19:25,265 WARN L233 ceAbstractionStarter]: 28 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-20 16:19:25,266 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 29 thread instances. [2022-11-20 16:19:25,353 INFO L144 ThreadInstanceAdder]: Constructed 29 joinOtherThreadTransitions. [2022-11-20 16:19:25,358 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 16:19:25,358 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-11-20 16:19:25,358 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 [2022-11-20 16:19:25,359 INFO L229 MonitoredProcess]: Starting monitored process 120 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-11-20 16:19:25,362 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (120)] Waiting until timeout for monitored process [2022-11-20 16:19:25,364 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-11-20 16:19:25,365 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2022-11-20 16:19:25,365 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@46174585, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 16:19:25,365 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-11-20 16:19:25,392 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:19:25,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:19:25,392 INFO L85 PathProgramCache]: Analyzing trace with hash 324111854, now seen corresponding path program 1 times [2022-11-20 16:19:25,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:19:25,393 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [770841545] [2022-11-20 16:19:25,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:19:25,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:19:25,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:19:25,417 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:19:25,417 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:19:25,417 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [770841545] [2022-11-20 16:19:25,417 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [770841545] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 16:19:25,417 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 16:19:25,417 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 16:19:25,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [611827400] [2022-11-20 16:19:25,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 16:19:25,418 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-20 16:19:25,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:19:25,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-20 16:19:25,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-20 16:19:25,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:19:25,419 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:19:25,419 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:19:25,419 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:19:25,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:19:25,421 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable226 [2022-11-20 16:19:25,421 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:19:25,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:19:25,421 INFO L85 PathProgramCache]: Analyzing trace with hash -1799103581, now seen corresponding path program 1 times [2022-11-20 16:19:25,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:19:25,422 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2147353586] [2022-11-20 16:19:25,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:19:25,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:19:25,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:19:25,452 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:19:25,452 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:19:25,452 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2147353586] [2022-11-20 16:19:25,452 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2147353586] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 16:19:25,452 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 16:19:25,453 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 16:19:25,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791908432] [2022-11-20 16:19:25,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 16:19:25,453 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 16:19:25,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:19:25,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 16:19:25,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 16:19:25,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:19:25,454 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:19:25,455 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:19:25,455 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:19:25,455 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:19:25,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:19:25,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:19:25,926 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable227 [2022-11-20 16:19:25,926 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:19:25,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:19:25,926 INFO L85 PathProgramCache]: Analyzing trace with hash 1272993224, now seen corresponding path program 1 times [2022-11-20 16:19:25,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:19:25,927 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2018144347] [2022-11-20 16:19:25,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:19:25,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:19:25,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:19:25,978 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:19:25,978 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:19:25,978 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2018144347] [2022-11-20 16:19:25,978 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2018144347] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 16:19:25,978 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1573174669] [2022-11-20 16:19:25,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:19:25,979 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 16:19:25,979 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 [2022-11-20 16:19:25,980 INFO L229 MonitoredProcess]: Starting monitored process 121 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 16:19:25,982 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (121)] Waiting until timeout for monitored process [2022-11-20 16:19:27,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:19:27,054 INFO L263 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 16:19:27,054 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 16:19:27,078 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:19:27,078 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 16:19:27,110 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:19:27,110 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1573174669] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 16:19:27,110 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 16:19:27,110 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-11-20 16:19:27,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1003034291] [2022-11-20 16:19:27,111 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 16:19:27,111 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-20 16:19:27,111 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:19:27,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-20 16:19:27,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-20 16:19:27,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:19:27,112 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:19:27,112 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.4) internal successors, (74), 10 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:19:27,112 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:19:27,112 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:19:27,112 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:19:27,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:19:27,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:19:27,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:19:27,415 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (121)] Forceful destruction successful, exit code 0 [2022-11-20 16:19:27,605 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 121 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable228 [2022-11-20 16:19:27,605 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:19:27,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:19:27,606 INFO L85 PathProgramCache]: Analyzing trace with hash -1805261073, now seen corresponding path program 1 times [2022-11-20 16:19:27,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:19:27,606 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [360391885] [2022-11-20 16:19:27,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:19:27,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:19:27,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:19:27,826 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-20 16:19:27,827 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:19:27,827 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [360391885] [2022-11-20 16:19:27,827 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [360391885] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 16:19:27,827 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 16:19:27,827 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 16:19:27,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [14054481] [2022-11-20 16:19:27,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 16:19:27,828 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 16:19:27,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:19:27,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 16:19:27,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 16:19:27,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:19:27,829 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:19:27,829 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:19:27,829 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:19:27,829 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:19:27,829 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:19:27,829 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:19:28,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:19:28,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:19:28,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:19:28,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 16:19:28,055 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable229 [2022-11-20 16:19:28,055 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:19:28,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:19:28,056 INFO L85 PathProgramCache]: Analyzing trace with hash -1763249414, now seen corresponding path program 1 times [2022-11-20 16:19:28,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:19:28,056 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1885559899] [2022-11-20 16:19:28,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:19:28,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:19:28,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:19:28,101 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-20 16:19:28,101 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:19:28,102 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1885559899] [2022-11-20 16:19:28,102 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1885559899] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 16:19:28,102 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 16:19:28,102 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 16:19:28,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [729977768] [2022-11-20 16:19:28,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 16:19:28,102 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 16:19:28,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:19:28,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 16:19:28,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 16:19:28,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:19:28,103 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:19:28,103 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:19:28,103 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:19:28,103 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:19:28,103 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:19:28,103 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-11-20 16:19:28,104 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:19:28,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:19:28,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:19:28,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:19:28,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:19:28,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:19:28,530 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable230 [2022-11-20 16:19:28,530 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:19:28,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:19:28,531 INFO L85 PathProgramCache]: Analyzing trace with hash 2083412533, now seen corresponding path program 1 times [2022-11-20 16:19:28,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:19:28,531 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [756346728] [2022-11-20 16:19:28,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:19:28,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:19:28,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:19:28,605 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-20 16:19:28,605 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:19:28,605 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [756346728] [2022-11-20 16:19:28,605 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [756346728] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 16:19:28,606 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [713324704] [2022-11-20 16:19:28,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:19:28,606 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 16:19:28,606 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 [2022-11-20 16:19:28,607 INFO L229 MonitoredProcess]: Starting monitored process 122 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 16:19:28,609 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (122)] Waiting until timeout for monitored process [2022-11-20 16:19:29,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:19:29,825 INFO L263 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-20 16:19:29,826 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 16:19:29,917 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-20 16:19:29,917 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 16:19:30,033 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-20 16:19:30,033 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [713324704] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 16:19:30,033 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 16:19:30,033 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 9, 9] total 19 [2022-11-20 16:19:30,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423566134] [2022-11-20 16:19:30,033 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 16:19:30,034 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-20 16:19:30,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:19:30,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-20 16:19:30,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=263, Unknown=0, NotChecked=0, Total=342 [2022-11-20 16:19:30,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:19:30,035 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:19:30,035 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 10.578947368421053) internal successors, (201), 19 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:19:30,035 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:19:30,035 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:19:30,035 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:19:30,035 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:19:30,035 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:19:30,035 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:19:30,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:19:30,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:19:30,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:19:30,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:19:30,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:19:30,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-20 16:19:30,964 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (122)] Ended with exit code 0 [2022-11-20 16:19:31,155 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable231,122 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 16:19:31,156 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:19:31,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:19:31,156 INFO L85 PathProgramCache]: Analyzing trace with hash -1875309065, now seen corresponding path program 1 times [2022-11-20 16:19:31,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:19:31,156 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1444000081] [2022-11-20 16:19:31,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:19:31,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:19:31,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:19:31,432 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 217 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-20 16:19:31,433 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:19:31,433 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1444000081] [2022-11-20 16:19:31,433 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1444000081] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 16:19:31,433 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1700030703] [2022-11-20 16:19:31,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:19:31,433 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 16:19:31,433 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 [2022-11-20 16:19:31,434 INFO L229 MonitoredProcess]: Starting monitored process 123 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 16:19:31,437 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (123)] Waiting until timeout for monitored process [2022-11-20 16:19:32,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:19:32,634 INFO L263 TraceCheckSpWp]: Trace formula consists of 460 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-20 16:19:32,637 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 16:19:32,737 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 217 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-20 16:19:32,737 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 16:19:33,041 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 217 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-20 16:19:33,041 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1700030703] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 16:19:33,041 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 16:19:33,041 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 34 [2022-11-20 16:19:33,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [857454962] [2022-11-20 16:19:33,042 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 16:19:33,042 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-11-20 16:19:33,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:19:33,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-11-20 16:19:33,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2022-11-20 16:19:33,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:19:33,043 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:19:33,043 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 7.5) internal successors, (255), 34 states have internal predecessors, (255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:19:33,043 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:19:33,043 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:19:33,043 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:19:33,043 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:19:33,044 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:19:33,044 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-11-20 16:19:33,044 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:19:35,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:19:35,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:19:35,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:19:35,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:19:35,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:19:35,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-20 16:19:35,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-11-20 16:19:35,217 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (123)] Ended with exit code 0 [2022-11-20 16:19:35,408 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 123 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable232 [2022-11-20 16:19:35,408 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:19:35,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:19:35,408 INFO L85 PathProgramCache]: Analyzing trace with hash 1417645699, now seen corresponding path program 1 times [2022-11-20 16:19:35,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:19:35,409 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1190910854] [2022-11-20 16:19:35,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:19:35,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:19:35,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:19:36,260 INFO L134 CoverageAnalysis]: Checked inductivity of 1073 backedges. 0 proven. 1065 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-20 16:19:36,260 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:19:36,261 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1190910854] [2022-11-20 16:19:36,261 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1190910854] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 16:19:36,261 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [822494199] [2022-11-20 16:19:36,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:19:36,261 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 16:19:36,261 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 [2022-11-20 16:19:36,262 INFO L229 MonitoredProcess]: Starting monitored process 124 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 16:19:36,264 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (124)] Waiting until timeout for monitored process [2022-11-20 16:19:37,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:19:37,521 INFO L263 TraceCheckSpWp]: Trace formula consists of 668 conjuncts, 32 conjunts are in the unsatisfiable core [2022-11-20 16:19:37,524 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 16:19:37,767 INFO L134 CoverageAnalysis]: Checked inductivity of 1073 backedges. 0 proven. 1065 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-20 16:19:37,767 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 16:19:38,926 INFO L134 CoverageAnalysis]: Checked inductivity of 1073 backedges. 0 proven. 1065 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-20 16:19:38,926 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [822494199] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 16:19:38,926 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 16:19:38,927 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33, 33] total 66 [2022-11-20 16:19:38,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281979900] [2022-11-20 16:19:38,927 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 16:19:38,928 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 66 states [2022-11-20 16:19:38,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:19:38,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2022-11-20 16:19:38,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1122, Invalid=3168, Unknown=0, NotChecked=0, Total=4290 [2022-11-20 16:19:38,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:19:38,930 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:19:38,931 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 66 states, 66 states have (on average 6.287878787878788) internal successors, (415), 66 states have internal predecessors, (415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:19:38,931 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:19:38,931 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:19:38,931 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:19:38,931 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:19:38,931 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:19:38,931 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-11-20 16:19:38,931 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2022-11-20 16:19:38,931 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:19:44,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:19:44,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:19:44,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:19:44,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:19:44,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:19:44,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-20 16:19:44,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-11-20 16:19:44,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 90 states. [2022-11-20 16:19:44,988 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (124)] Ended with exit code 0 [2022-11-20 16:19:45,179 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 124 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable233 [2022-11-20 16:19:45,179 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:19:45,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:19:45,180 INFO L85 PathProgramCache]: Analyzing trace with hash -1035088815, now seen corresponding path program 1 times [2022-11-20 16:19:45,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:19:45,180 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1775308788] [2022-11-20 16:19:45,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:19:45,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:19:45,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 16:19:45,243 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 16:19:45,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 16:19:45,325 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 16:19:45,325 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-20 16:19:45,325 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 7 remaining) [2022-11-20 16:19:45,325 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 7 remaining) [2022-11-20 16:19:45,325 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 7 remaining) [2022-11-20 16:19:45,326 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 7 remaining) [2022-11-20 16:19:45,326 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 7 remaining) [2022-11-20 16:19:45,326 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (1 of 7 remaining) [2022-11-20 16:19:45,326 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK (0 of 7 remaining) [2022-11-20 16:19:45,326 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable234 [2022-11-20 16:19:45,330 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 16:19:45,330 WARN L233 ceAbstractionStarter]: 29 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-20 16:19:45,330 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 30 thread instances. [2022-11-20 16:19:45,412 INFO L144 ThreadInstanceAdder]: Constructed 30 joinOtherThreadTransitions. [2022-11-20 16:19:45,417 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 16:19:45,418 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-11-20 16:19:45,418 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 [2022-11-20 16:19:45,419 INFO L229 MonitoredProcess]: Starting monitored process 125 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-11-20 16:19:45,422 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (125)] Waiting until timeout for monitored process [2022-11-20 16:19:45,424 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-11-20 16:19:45,424 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2022-11-20 16:19:45,424 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@46174585, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 16:19:45,424 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-11-20 16:19:45,451 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:19:45,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:19:45,451 INFO L85 PathProgramCache]: Analyzing trace with hash 1927927790, now seen corresponding path program 1 times [2022-11-20 16:19:45,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:19:45,452 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [954963930] [2022-11-20 16:19:45,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:19:45,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:19:45,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:19:45,473 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:19:45,473 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:19:45,473 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [954963930] [2022-11-20 16:19:45,473 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [954963930] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 16:19:45,473 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 16:19:45,473 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 16:19:45,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1893547262] [2022-11-20 16:19:45,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 16:19:45,474 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-20 16:19:45,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:19:45,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-20 16:19:45,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-20 16:19:45,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:19:45,474 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:19:45,474 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:19:45,474 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:19:45,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:19:45,475 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable235 [2022-11-20 16:19:45,476 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:19:45,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:19:45,476 INFO L85 PathProgramCache]: Analyzing trace with hash 1869784611, now seen corresponding path program 1 times [2022-11-20 16:19:45,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:19:45,476 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [638532682] [2022-11-20 16:19:45,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:19:45,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:19:45,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:19:45,504 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:19:45,505 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:19:45,505 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [638532682] [2022-11-20 16:19:45,505 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [638532682] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 16:19:45,505 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 16:19:45,505 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 16:19:45,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [384813297] [2022-11-20 16:19:45,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 16:19:45,505 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 16:19:45,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:19:45,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 16:19:45,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 16:19:45,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:19:45,506 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:19:45,506 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:19:45,506 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:19:45,506 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:19:45,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:19:45,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:19:45,926 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable236 [2022-11-20 16:19:45,926 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:19:45,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:19:45,926 INFO L85 PathProgramCache]: Analyzing trace with hash -296714708, now seen corresponding path program 1 times [2022-11-20 16:19:45,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:19:45,926 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1355688611] [2022-11-20 16:19:45,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:19:45,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:19:45,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:19:45,973 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:19:45,973 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:19:45,974 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1355688611] [2022-11-20 16:19:45,974 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1355688611] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 16:19:45,974 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1280528626] [2022-11-20 16:19:45,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:19:45,974 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 16:19:45,974 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 [2022-11-20 16:19:45,975 INFO L229 MonitoredProcess]: Starting monitored process 126 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 16:19:45,978 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (126)] Waiting until timeout for monitored process [2022-11-20 16:19:47,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:19:47,195 INFO L263 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 16:19:47,196 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 16:19:47,221 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:19:47,221 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 16:19:47,258 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:19:47,258 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1280528626] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 16:19:47,258 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 16:19:47,258 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-11-20 16:19:47,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2080550722] [2022-11-20 16:19:47,258 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 16:19:47,259 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-20 16:19:47,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:19:47,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-20 16:19:47,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-20 16:19:47,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:19:47,260 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:19:47,260 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.4) internal successors, (74), 10 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:19:47,260 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:19:47,260 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:19:47,260 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:19:47,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:19:47,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:19:47,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:19:47,565 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (126)] Forceful destruction successful, exit code 0 [2022-11-20 16:19:47,756 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable237,126 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 16:19:47,757 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:19:47,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:19:47,757 INFO L85 PathProgramCache]: Analyzing trace with hash -660478949, now seen corresponding path program 1 times [2022-11-20 16:19:47,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:19:47,757 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [18685377] [2022-11-20 16:19:47,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:19:47,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:19:47,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:19:47,824 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-20 16:19:47,824 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:19:47,824 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [18685377] [2022-11-20 16:19:47,824 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [18685377] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 16:19:47,824 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 16:19:47,824 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 16:19:47,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1856387346] [2022-11-20 16:19:47,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 16:19:47,825 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 16:19:47,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:19:47,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 16:19:47,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 16:19:47,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:19:47,826 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:19:47,827 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:19:47,827 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:19:47,827 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:19:47,827 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:19:47,827 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:19:48,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:19:48,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:19:48,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:19:48,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 16:19:48,107 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable238 [2022-11-20 16:19:48,107 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:19:48,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:19:48,108 INFO L85 PathProgramCache]: Analyzing trace with hash -1146090158, now seen corresponding path program 1 times [2022-11-20 16:19:48,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:19:48,108 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [459288375] [2022-11-20 16:19:48,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:19:48,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:19:48,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:19:48,151 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-20 16:19:48,151 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:19:48,152 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [459288375] [2022-11-20 16:19:48,152 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [459288375] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 16:19:48,152 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 16:19:48,152 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 16:19:48,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038436377] [2022-11-20 16:19:48,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 16:19:48,152 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 16:19:48,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:19:48,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 16:19:48,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 16:19:48,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:19:48,153 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:19:48,154 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:19:48,154 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:19:48,154 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:19:48,154 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:19:48,154 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-11-20 16:19:48,154 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:19:48,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:19:48,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:19:48,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:19:48,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:19:48,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:19:48,728 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable239 [2022-11-20 16:19:48,729 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:19:48,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:19:48,729 INFO L85 PathProgramCache]: Analyzing trace with hash -1052943260, now seen corresponding path program 1 times [2022-11-20 16:19:48,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:19:48,729 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1929681581] [2022-11-20 16:19:48,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:19:48,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:19:48,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:19:48,850 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-20 16:19:48,850 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:19:48,850 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1929681581] [2022-11-20 16:19:48,850 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1929681581] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 16:19:48,851 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2089406266] [2022-11-20 16:19:48,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:19:48,851 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 16:19:48,851 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 [2022-11-20 16:19:48,852 INFO L229 MonitoredProcess]: Starting monitored process 127 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 16:19:48,856 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (127)] Waiting until timeout for monitored process [2022-11-20 16:19:50,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:19:50,049 INFO L263 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-20 16:19:50,050 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 16:19:50,133 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-20 16:19:50,134 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 16:19:50,248 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-20 16:19:50,249 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2089406266] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 16:19:50,249 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 16:19:50,249 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 9, 9] total 19 [2022-11-20 16:19:50,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689905639] [2022-11-20 16:19:50,249 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 16:19:50,250 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-20 16:19:50,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:19:50,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-20 16:19:50,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=263, Unknown=0, NotChecked=0, Total=342 [2022-11-20 16:19:50,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:19:50,251 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:19:50,251 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 10.578947368421053) internal successors, (201), 19 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:19:50,251 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:19:50,251 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:19:50,251 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:19:50,251 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:19:50,251 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:19:50,251 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:19:51,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:19:51,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:19:51,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:19:51,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:19:51,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:19:51,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-20 16:19:51,140 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (127)] Forceful destruction successful, exit code 0 [2022-11-20 16:19:51,331 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable240,127 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 16:19:51,331 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:19:51,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:19:51,331 INFO L85 PathProgramCache]: Analyzing trace with hash 1131941151, now seen corresponding path program 1 times [2022-11-20 16:19:51,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:19:51,332 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1270738693] [2022-11-20 16:19:51,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:19:51,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:19:51,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:19:51,646 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 217 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-20 16:19:51,646 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:19:51,646 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1270738693] [2022-11-20 16:19:51,646 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1270738693] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 16:19:51,646 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1684870297] [2022-11-20 16:19:51,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:19:51,646 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 16:19:51,647 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 [2022-11-20 16:19:51,649 INFO L229 MonitoredProcess]: Starting monitored process 128 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 16:19:51,654 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (128)] Waiting until timeout for monitored process [2022-11-20 16:19:52,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:19:52,911 INFO L263 TraceCheckSpWp]: Trace formula consists of 460 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-20 16:19:52,914 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 16:19:53,035 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 217 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-20 16:19:53,035 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 16:19:53,394 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 217 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-20 16:19:53,394 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1684870297] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 16:19:53,394 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 16:19:53,395 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 34 [2022-11-20 16:19:53,395 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [989474129] [2022-11-20 16:19:53,395 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 16:19:53,395 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-11-20 16:19:53,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:19:53,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-11-20 16:19:53,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2022-11-20 16:19:53,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:19:53,396 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:19:53,397 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 7.5) internal successors, (255), 34 states have internal predecessors, (255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:19:53,397 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:19:53,397 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:19:53,397 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:19:53,397 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:19:53,397 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:19:53,397 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-11-20 16:19:53,397 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:19:55,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:19:55,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:19:55,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:19:55,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:19:55,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:19:55,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-20 16:19:55,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-11-20 16:19:55,582 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (128)] Ended with exit code 0 [2022-11-20 16:19:55,775 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 128 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable241 [2022-11-20 16:19:55,775 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:19:55,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:19:55,775 INFO L85 PathProgramCache]: Analyzing trace with hash 733931787, now seen corresponding path program 1 times [2022-11-20 16:19:55,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:19:55,775 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [794868295] [2022-11-20 16:19:55,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:19:55,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:19:55,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:19:56,616 INFO L134 CoverageAnalysis]: Checked inductivity of 1073 backedges. 0 proven. 1065 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-20 16:19:56,616 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:19:56,616 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [794868295] [2022-11-20 16:19:56,616 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [794868295] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 16:19:56,616 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1903701539] [2022-11-20 16:19:56,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:19:56,617 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 16:19:56,617 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 [2022-11-20 16:19:56,618 INFO L229 MonitoredProcess]: Starting monitored process 129 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 16:19:56,620 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (129)] Waiting until timeout for monitored process [2022-11-20 16:19:57,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:19:57,914 INFO L263 TraceCheckSpWp]: Trace formula consists of 668 conjuncts, 32 conjunts are in the unsatisfiable core [2022-11-20 16:19:57,918 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 16:19:58,149 INFO L134 CoverageAnalysis]: Checked inductivity of 1073 backedges. 0 proven. 1065 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-20 16:19:58,149 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 16:19:59,267 INFO L134 CoverageAnalysis]: Checked inductivity of 1073 backedges. 0 proven. 1065 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-20 16:19:59,267 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1903701539] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 16:19:59,267 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 16:19:59,268 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33, 33] total 66 [2022-11-20 16:19:59,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [347958543] [2022-11-20 16:19:59,268 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 16:19:59,268 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 66 states [2022-11-20 16:19:59,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:19:59,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2022-11-20 16:19:59,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1122, Invalid=3168, Unknown=0, NotChecked=0, Total=4290 [2022-11-20 16:19:59,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:19:59,270 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:19:59,270 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 66 states, 66 states have (on average 6.287878787878788) internal successors, (415), 66 states have internal predecessors, (415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:19:59,270 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:19:59,270 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:19:59,270 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:19:59,270 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:19:59,270 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:19:59,270 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-11-20 16:19:59,270 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2022-11-20 16:19:59,271 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:20:04,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:20:04,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:20:04,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:20:04,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:20:04,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:20:04,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-20 16:20:04,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-11-20 16:20:04,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2022-11-20 16:20:04,708 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (129)] Forceful destruction successful, exit code 0 [2022-11-20 16:20:04,898 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable242,129 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 16:20:04,898 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:20:04,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:20:04,899 INFO L85 PathProgramCache]: Analyzing trace with hash 769811537, now seen corresponding path program 1 times [2022-11-20 16:20:04,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:20:04,899 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1800047597] [2022-11-20 16:20:04,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:20:04,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:20:04,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 16:20:04,962 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 16:20:04,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 16:20:05,094 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 16:20:05,095 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-20 16:20:05,095 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 7 remaining) [2022-11-20 16:20:05,095 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 7 remaining) [2022-11-20 16:20:05,095 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 7 remaining) [2022-11-20 16:20:05,095 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 7 remaining) [2022-11-20 16:20:05,096 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 7 remaining) [2022-11-20 16:20:05,096 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (1 of 7 remaining) [2022-11-20 16:20:05,096 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK (0 of 7 remaining) [2022-11-20 16:20:05,096 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable243 [2022-11-20 16:20:05,099 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 16:20:05,100 WARN L233 ceAbstractionStarter]: 30 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-20 16:20:05,100 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 31 thread instances. [2022-11-20 16:20:05,193 INFO L144 ThreadInstanceAdder]: Constructed 31 joinOtherThreadTransitions. [2022-11-20 16:20:05,200 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 16:20:05,200 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-11-20 16:20:05,201 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 [2022-11-20 16:20:05,202 INFO L229 MonitoredProcess]: Starting monitored process 130 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-11-20 16:20:05,213 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-11-20 16:20:05,213 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2022-11-20 16:20:05,214 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@46174585, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 16:20:05,214 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-11-20 16:20:05,235 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (130)] Waiting until timeout for monitored process [2022-11-20 16:20:05,265 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:20:05,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:20:05,266 INFO L85 PathProgramCache]: Analyzing trace with hash 1120322030, now seen corresponding path program 1 times [2022-11-20 16:20:05,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:20:05,266 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [567500771] [2022-11-20 16:20:05,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:20:05,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:20:05,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:20:05,299 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:20:05,299 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:20:05,299 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [567500771] [2022-11-20 16:20:05,300 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [567500771] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 16:20:05,300 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 16:20:05,300 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 16:20:05,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539663019] [2022-11-20 16:20:05,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 16:20:05,301 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-20 16:20:05,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:20:05,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-20 16:20:05,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-20 16:20:05,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:20:05,302 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:20:05,302 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:20:05,302 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:20:05,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:20:05,304 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable244 [2022-11-20 16:20:05,304 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:20:05,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:20:05,305 INFO L85 PathProgramCache]: Analyzing trace with hash -1145169757, now seen corresponding path program 1 times [2022-11-20 16:20:05,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:20:05,305 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1839449304] [2022-11-20 16:20:05,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:20:05,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:20:05,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:20:05,350 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:20:05,351 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:20:05,351 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1839449304] [2022-11-20 16:20:05,351 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1839449304] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 16:20:05,351 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 16:20:05,351 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 16:20:05,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1592466267] [2022-11-20 16:20:05,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 16:20:05,352 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 16:20:05,352 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:20:05,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 16:20:05,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 16:20:05,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:20:05,353 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:20:05,353 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:20:05,354 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:20:05,354 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:20:05,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:20:05,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:20:05,923 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable245 [2022-11-20 16:20:05,923 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:20:05,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:20:05,924 INFO L85 PathProgramCache]: Analyzing trace with hash -1965590896, now seen corresponding path program 1 times [2022-11-20 16:20:05,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:20:05,924 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [269355044] [2022-11-20 16:20:05,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:20:05,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:20:05,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:20:05,996 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:20:05,996 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:20:05,996 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [269355044] [2022-11-20 16:20:05,997 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [269355044] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 16:20:05,997 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2002829474] [2022-11-20 16:20:05,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:20:05,997 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 16:20:05,997 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 [2022-11-20 16:20:06,002 INFO L229 MonitoredProcess]: Starting monitored process 131 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 16:20:06,018 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (131)] Waiting until timeout for monitored process [2022-11-20 16:20:07,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:20:07,395 INFO L263 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 16:20:07,396 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 16:20:07,423 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:20:07,423 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 16:20:07,460 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:20:07,460 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2002829474] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 16:20:07,460 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 16:20:07,460 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-11-20 16:20:07,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790316908] [2022-11-20 16:20:07,460 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 16:20:07,461 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-20 16:20:07,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:20:07,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-20 16:20:07,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-20 16:20:07,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:20:07,462 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:20:07,462 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.4) internal successors, (74), 10 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:20:07,462 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:20:07,462 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:20:07,462 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:20:07,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:20:07,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:20:07,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:20:07,793 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (131)] Forceful destruction successful, exit code 0 [2022-11-20 16:20:07,984 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 131 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable246 [2022-11-20 16:20:07,984 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:20:07,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:20:07,985 INFO L85 PathProgramCache]: Analyzing trace with hash -122486457, now seen corresponding path program 1 times [2022-11-20 16:20:07,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:20:07,985 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [178348495] [2022-11-20 16:20:07,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:20:07,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:20:08,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:20:08,066 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-20 16:20:08,066 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:20:08,066 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [178348495] [2022-11-20 16:20:08,066 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [178348495] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 16:20:08,066 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 16:20:08,066 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 16:20:08,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1512511133] [2022-11-20 16:20:08,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 16:20:08,067 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 16:20:08,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:20:08,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 16:20:08,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 16:20:08,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:20:08,068 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:20:08,068 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:20:08,068 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:20:08,068 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:20:08,068 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:20:08,068 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:20:08,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:20:08,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:20:08,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:20:08,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 16:20:08,362 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable247 [2022-11-20 16:20:08,362 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:20:08,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:20:08,362 INFO L85 PathProgramCache]: Analyzing trace with hash 1714939882, now seen corresponding path program 1 times [2022-11-20 16:20:08,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:20:08,362 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [411063724] [2022-11-20 16:20:08,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:20:08,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:20:08,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:20:08,406 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-20 16:20:08,406 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:20:08,407 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [411063724] [2022-11-20 16:20:08,407 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [411063724] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 16:20:08,407 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 16:20:08,407 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 16:20:08,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [458102860] [2022-11-20 16:20:08,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 16:20:08,407 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 16:20:08,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:20:08,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 16:20:08,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 16:20:08,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:20:08,408 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:20:08,409 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:20:08,409 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:20:08,409 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:20:08,409 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:20:08,409 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-11-20 16:20:08,409 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:20:09,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:20:09,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:20:09,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:20:09,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:20:09,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:20:09,025 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable248 [2022-11-20 16:20:09,025 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:20:09,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:20:09,025 INFO L85 PathProgramCache]: Analyzing trace with hash -1887476717, now seen corresponding path program 1 times [2022-11-20 16:20:09,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:20:09,026 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [773039546] [2022-11-20 16:20:09,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:20:09,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:20:09,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:20:09,102 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-20 16:20:09,102 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:20:09,102 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [773039546] [2022-11-20 16:20:09,102 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [773039546] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 16:20:09,102 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [336609203] [2022-11-20 16:20:09,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:20:09,103 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 16:20:09,103 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 [2022-11-20 16:20:09,104 INFO L229 MonitoredProcess]: Starting monitored process 132 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 16:20:09,106 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (132)] Waiting until timeout for monitored process [2022-11-20 16:20:10,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:20:10,331 INFO L263 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-20 16:20:10,332 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 16:20:10,415 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-20 16:20:10,415 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 16:20:10,526 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-20 16:20:10,526 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [336609203] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 16:20:10,526 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 16:20:10,526 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 9, 9] total 19 [2022-11-20 16:20:10,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [273955702] [2022-11-20 16:20:10,526 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 16:20:10,527 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-20 16:20:10,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:20:10,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-20 16:20:10,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=263, Unknown=0, NotChecked=0, Total=342 [2022-11-20 16:20:10,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:20:10,527 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:20:10,528 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 10.578947368421053) internal successors, (201), 19 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:20:10,528 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:20:10,528 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:20:10,528 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:20:10,528 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:20:10,528 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:20:10,528 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:20:11,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:20:11,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:20:11,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:20:11,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:20:11,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:20:11,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-20 16:20:11,527 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (132)] Forceful destruction successful, exit code 0 [2022-11-20 16:20:11,717 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 132 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable249 [2022-11-20 16:20:11,717 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:20:11,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:20:11,718 INFO L85 PathProgramCache]: Analyzing trace with hash 1857926407, now seen corresponding path program 1 times [2022-11-20 16:20:11,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:20:11,718 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [867252738] [2022-11-20 16:20:11,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:20:11,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:20:11,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:20:12,015 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 217 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-20 16:20:12,015 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:20:12,015 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [867252738] [2022-11-20 16:20:12,015 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [867252738] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 16:20:12,015 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [515730448] [2022-11-20 16:20:12,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:20:12,015 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 16:20:12,016 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 [2022-11-20 16:20:12,017 INFO L229 MonitoredProcess]: Starting monitored process 133 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 16:20:12,023 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (133)] Waiting until timeout for monitored process [2022-11-20 16:20:13,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:20:13,395 INFO L263 TraceCheckSpWp]: Trace formula consists of 460 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-20 16:20:13,398 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 16:20:13,519 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 217 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-20 16:20:13,519 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 16:20:13,859 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 217 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-20 16:20:13,859 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [515730448] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 16:20:13,860 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 16:20:13,860 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 34 [2022-11-20 16:20:13,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1345484737] [2022-11-20 16:20:13,860 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 16:20:13,861 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-11-20 16:20:13,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:20:13,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-11-20 16:20:13,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2022-11-20 16:20:13,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:20:13,863 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:20:13,863 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 7.5) internal successors, (255), 34 states have internal predecessors, (255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:20:13,863 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:20:13,864 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:20:13,864 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:20:13,864 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:20:13,864 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:20:13,864 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-11-20 16:20:13,864 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:20:16,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:20:16,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:20:16,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:20:16,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:20:16,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:20:16,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-20 16:20:16,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-11-20 16:20:16,403 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (133)] Forceful destruction successful, exit code 0 [2022-11-20 16:20:16,602 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable250,133 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 16:20:16,603 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:20:16,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:20:16,603 INFO L85 PathProgramCache]: Analyzing trace with hash -681927981, now seen corresponding path program 1 times [2022-11-20 16:20:16,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:20:16,603 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1122218464] [2022-11-20 16:20:16,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:20:16,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:20:16,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:20:17,411 INFO L134 CoverageAnalysis]: Checked inductivity of 1073 backedges. 0 proven. 1065 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-20 16:20:17,411 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:20:17,411 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1122218464] [2022-11-20 16:20:17,411 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1122218464] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 16:20:17,411 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1311958111] [2022-11-20 16:20:17,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:20:17,412 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 16:20:17,412 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 [2022-11-20 16:20:17,413 INFO L229 MonitoredProcess]: Starting monitored process 134 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 16:20:17,416 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (134)] Waiting until timeout for monitored process [2022-11-20 16:20:18,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:20:18,768 INFO L263 TraceCheckSpWp]: Trace formula consists of 668 conjuncts, 32 conjunts are in the unsatisfiable core [2022-11-20 16:20:18,770 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 16:20:18,983 INFO L134 CoverageAnalysis]: Checked inductivity of 1073 backedges. 0 proven. 1065 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-20 16:20:18,983 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 16:20:19,997 INFO L134 CoverageAnalysis]: Checked inductivity of 1073 backedges. 0 proven. 1065 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-20 16:20:19,997 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1311958111] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 16:20:19,997 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 16:20:19,997 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33, 33] total 66 [2022-11-20 16:20:19,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441805812] [2022-11-20 16:20:19,998 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 16:20:19,998 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 66 states [2022-11-20 16:20:19,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:20:19,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2022-11-20 16:20:19,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1122, Invalid=3168, Unknown=0, NotChecked=0, Total=4290 [2022-11-20 16:20:19,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:20:20,000 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:20:20,000 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 66 states, 66 states have (on average 6.287878787878788) internal successors, (415), 66 states have internal predecessors, (415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:20:20,000 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:20:20,000 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:20:20,000 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:20:20,000 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:20:20,000 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:20:20,001 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-11-20 16:20:20,001 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2022-11-20 16:20:20,001 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:20:27,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:20:27,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:20:27,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:20:27,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:20:27,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:20:27,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-20 16:20:27,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-11-20 16:20:27,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2022-11-20 16:20:27,808 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (134)] Forceful destruction successful, exit code 0 [2022-11-20 16:20:27,996 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable251,134 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 16:20:27,997 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:20:27,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:20:27,997 INFO L85 PathProgramCache]: Analyzing trace with hash -1822693525, now seen corresponding path program 1 times [2022-11-20 16:20:27,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:20:27,997 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [324356319] [2022-11-20 16:20:27,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:20:27,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:20:28,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:20:31,032 INFO L134 CoverageAnalysis]: Checked inductivity of 4689 backedges. 0 proven. 4681 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-20 16:20:31,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:20:31,033 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [324356319] [2022-11-20 16:20:31,033 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [324356319] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 16:20:31,033 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [878973303] [2022-11-20 16:20:31,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:20:31,033 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 16:20:31,033 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 [2022-11-20 16:20:31,035 INFO L229 MonitoredProcess]: Starting monitored process 135 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 16:20:31,037 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (135)] Waiting until timeout for monitored process [2022-11-20 16:20:32,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:20:32,559 INFO L263 TraceCheckSpWp]: Trace formula consists of 1084 conjuncts, 64 conjunts are in the unsatisfiable core [2022-11-20 16:20:32,562 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 16:20:33,237 INFO L134 CoverageAnalysis]: Checked inductivity of 4689 backedges. 0 proven. 4681 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-20 16:20:33,237 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 16:20:37,468 INFO L134 CoverageAnalysis]: Checked inductivity of 4689 backedges. 0 proven. 4681 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-20 16:20:37,469 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [878973303] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 16:20:37,469 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 16:20:37,469 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [65, 65, 65] total 130 [2022-11-20 16:20:37,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1112271884] [2022-11-20 16:20:37,469 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 16:20:37,470 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 130 states [2022-11-20 16:20:37,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:20:37,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 130 interpolants. [2022-11-20 16:20:37,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4290, Invalid=12480, Unknown=0, NotChecked=0, Total=16770 [2022-11-20 16:20:37,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:20:37,477 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:20:37,478 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 130 states, 130 states have (on average 5.653846153846154) internal successors, (735), 130 states have internal predecessors, (735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:20:37,478 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:20:37,478 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:20:37,478 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:20:37,478 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:20:37,479 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:20:37,479 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-11-20 16:20:37,479 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2022-11-20 16:20:37,479 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 93 states. [2022-11-20 16:20:37,479 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:20:46,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:20:46,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:20:46,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:20:46,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:20:46,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:20:46,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-20 16:20:46,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-11-20 16:20:46,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2022-11-20 16:20:46,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2022-11-20 16:20:46,586 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (135)] Forceful destruction successful, exit code 0 [2022-11-20 16:20:46,775 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable252,135 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 16:20:46,775 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:20:46,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:20:46,775 INFO L85 PathProgramCache]: Analyzing trace with hash -432221558, now seen corresponding path program 1 times [2022-11-20 16:20:46,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:20:46,776 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2128222328] [2022-11-20 16:20:46,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:20:46,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:20:46,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 16:20:46,844 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 16:20:46,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 16:20:46,956 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 16:20:46,956 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-20 16:20:46,957 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 7 remaining) [2022-11-20 16:20:46,957 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 7 remaining) [2022-11-20 16:20:46,957 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 7 remaining) [2022-11-20 16:20:46,957 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 7 remaining) [2022-11-20 16:20:46,957 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 7 remaining) [2022-11-20 16:20:46,957 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (1 of 7 remaining) [2022-11-20 16:20:46,957 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK (0 of 7 remaining) [2022-11-20 16:20:46,957 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable253 [2022-11-20 16:20:46,962 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 16:20:46,962 WARN L233 ceAbstractionStarter]: 31 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-20 16:20:46,962 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 32 thread instances. [2022-11-20 16:20:47,056 INFO L144 ThreadInstanceAdder]: Constructed 32 joinOtherThreadTransitions. [2022-11-20 16:20:47,063 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 16:20:47,064 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-11-20 16:20:47,064 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 [2022-11-20 16:20:47,065 INFO L229 MonitoredProcess]: Starting monitored process 136 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-11-20 16:20:47,071 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-11-20 16:20:47,071 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2022-11-20 16:20:47,072 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@46174585, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 16:20:47,072 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-11-20 16:20:47,095 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (136)] Waiting until timeout for monitored process [2022-11-20 16:20:47,105 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:20:47,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:20:47,106 INFO L85 PathProgramCache]: Analyzing trace with hash -2098705426, now seen corresponding path program 1 times [2022-11-20 16:20:47,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:20:47,106 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [697121528] [2022-11-20 16:20:47,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:20:47,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:20:47,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:20:47,130 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:20:47,130 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:20:47,130 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [697121528] [2022-11-20 16:20:47,130 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [697121528] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 16:20:47,130 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 16:20:47,131 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 16:20:47,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363280443] [2022-11-20 16:20:47,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 16:20:47,131 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-20 16:20:47,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:20:47,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-20 16:20:47,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-20 16:20:47,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:20:47,132 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:20:47,132 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:20:47,132 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:20:47,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:20:47,134 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable254 [2022-11-20 16:20:47,135 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:20:47,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:20:47,135 INFO L85 PathProgramCache]: Analyzing trace with hash 2040935203, now seen corresponding path program 1 times [2022-11-20 16:20:47,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:20:47,136 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [780988218] [2022-11-20 16:20:47,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:20:47,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:20:47,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:20:47,170 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:20:47,171 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:20:47,171 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [780988218] [2022-11-20 16:20:47,171 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [780988218] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 16:20:47,171 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 16:20:47,171 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 16:20:47,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1765028634] [2022-11-20 16:20:47,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 16:20:47,172 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 16:20:47,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:20:47,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 16:20:47,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 16:20:47,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:20:47,174 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:20:47,174 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:20:47,174 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:20:47,174 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:20:47,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:20:47,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:20:47,700 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable255 [2022-11-20 16:20:47,701 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:20:47,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:20:47,701 INFO L85 PathProgramCache]: Analyzing trace with hash 561331956, now seen corresponding path program 1 times [2022-11-20 16:20:47,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:20:47,702 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1792868] [2022-11-20 16:20:47,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:20:47,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:20:47,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:20:47,754 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:20:47,755 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:20:47,755 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1792868] [2022-11-20 16:20:47,755 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1792868] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 16:20:47,755 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [907220907] [2022-11-20 16:20:47,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:20:47,755 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 16:20:47,755 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 [2022-11-20 16:20:47,758 INFO L229 MonitoredProcess]: Starting monitored process 137 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 16:20:47,759 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (137)] Waiting until timeout for monitored process [2022-11-20 16:20:49,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:20:49,048 INFO L263 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 16:20:49,049 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 16:20:49,073 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:20:49,073 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 16:20:49,107 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:20:49,107 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [907220907] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 16:20:49,107 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 16:20:49,107 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-11-20 16:20:49,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1458507123] [2022-11-20 16:20:49,108 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 16:20:49,108 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-20 16:20:49,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:20:49,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-20 16:20:49,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-20 16:20:49,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:20:49,110 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:20:49,110 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.4) internal successors, (74), 10 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:20:49,110 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:20:49,110 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:20:49,110 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:20:49,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:20:49,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:20:49,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:20:49,434 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (137)] Ended with exit code 0 [2022-11-20 16:20:49,624 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 137 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable256 [2022-11-20 16:20:49,624 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:20:49,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:20:49,624 INFO L85 PathProgramCache]: Analyzing trace with hash -191283597, now seen corresponding path program 1 times [2022-11-20 16:20:49,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:20:49,625 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1008535605] [2022-11-20 16:20:49,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:20:49,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:20:49,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:20:49,697 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-20 16:20:49,697 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:20:49,698 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1008535605] [2022-11-20 16:20:49,698 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1008535605] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 16:20:49,698 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 16:20:49,698 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 16:20:49,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [341250587] [2022-11-20 16:20:49,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 16:20:49,699 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 16:20:49,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:20:49,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 16:20:49,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 16:20:49,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:20:49,700 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:20:49,701 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:20:49,701 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:20:49,701 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:20:49,701 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:20:49,701 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:20:50,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:20:50,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:20:50,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:20:50,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 16:20:50,002 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable257 [2022-11-20 16:20:50,002 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:20:50,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:20:50,002 INFO L85 PathProgramCache]: Analyzing trace with hash -1770093886, now seen corresponding path program 1 times [2022-11-20 16:20:50,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:20:50,003 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [211983914] [2022-11-20 16:20:50,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:20:50,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:20:50,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:20:50,048 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-20 16:20:50,048 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:20:50,048 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [211983914] [2022-11-20 16:20:50,048 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [211983914] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 16:20:50,048 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 16:20:50,048 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 16:20:50,048 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1757091938] [2022-11-20 16:20:50,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 16:20:50,049 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 16:20:50,049 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:20:50,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 16:20:50,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 16:20:50,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:20:50,050 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:20:50,050 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:20:50,050 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:20:50,050 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:20:50,051 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:20:50,051 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-11-20 16:20:50,051 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:20:50,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:20:50,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:20:50,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:20:50,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:20:50,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:20:50,582 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable258 [2022-11-20 16:20:50,583 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:20:50,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:20:50,583 INFO L85 PathProgramCache]: Analyzing trace with hash 103995714, now seen corresponding path program 1 times [2022-11-20 16:20:50,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:20:50,583 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [254603482] [2022-11-20 16:20:50,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:20:50,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:20:50,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:20:50,662 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-20 16:20:50,662 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:20:50,663 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [254603482] [2022-11-20 16:20:50,663 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [254603482] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 16:20:50,663 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1478898293] [2022-11-20 16:20:50,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:20:50,663 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 16:20:50,664 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 [2022-11-20 16:20:50,668 INFO L229 MonitoredProcess]: Starting monitored process 138 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 16:20:50,690 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (138)] Waiting until timeout for monitored process [2022-11-20 16:20:52,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:20:52,030 INFO L263 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-20 16:20:52,031 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 16:20:52,118 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-20 16:20:52,118 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 16:20:52,237 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-20 16:20:52,238 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1478898293] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 16:20:52,238 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 16:20:52,238 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 9, 9] total 19 [2022-11-20 16:20:52,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267039344] [2022-11-20 16:20:52,238 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 16:20:52,239 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-20 16:20:52,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:20:52,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-20 16:20:52,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=263, Unknown=0, NotChecked=0, Total=342 [2022-11-20 16:20:52,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:20:52,240 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:20:52,240 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 10.578947368421053) internal successors, (201), 19 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:20:52,240 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:20:52,240 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:20:52,240 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:20:52,240 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:20:52,240 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:20:52,241 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:20:53,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:20:53,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:20:53,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:20:53,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:20:53,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:20:53,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-20 16:20:53,283 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (138)] Forceful destruction successful, exit code 0 [2022-11-20 16:20:53,470 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 138 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable259 [2022-11-20 16:20:53,470 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:20:53,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:20:53,471 INFO L85 PathProgramCache]: Analyzing trace with hash -1225790673, now seen corresponding path program 1 times [2022-11-20 16:20:53,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:20:53,471 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1343447432] [2022-11-20 16:20:53,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:20:53,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:20:53,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:20:53,750 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 217 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-20 16:20:53,751 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:20:53,751 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1343447432] [2022-11-20 16:20:53,751 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1343447432] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 16:20:53,751 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1527991812] [2022-11-20 16:20:53,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:20:53,751 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 16:20:53,751 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 [2022-11-20 16:20:53,752 INFO L229 MonitoredProcess]: Starting monitored process 139 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 16:20:53,756 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (139)] Waiting until timeout for monitored process [2022-11-20 16:20:55,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:20:55,096 INFO L263 TraceCheckSpWp]: Trace formula consists of 460 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-20 16:20:55,098 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 16:20:55,209 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 217 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-20 16:20:55,209 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 16:20:55,523 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 217 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-20 16:20:55,524 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1527991812] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 16:20:55,524 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 16:20:55,524 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 34 [2022-11-20 16:20:55,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689661980] [2022-11-20 16:20:55,524 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 16:20:55,524 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-11-20 16:20:55,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:20:55,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-11-20 16:20:55,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2022-11-20 16:20:55,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:20:55,526 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:20:55,527 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 7.5) internal successors, (255), 34 states have internal predecessors, (255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:20:55,527 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:20:55,527 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:20:55,527 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:20:55,527 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:20:55,527 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:20:55,527 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-11-20 16:20:55,527 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:20:58,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:20:58,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:20:58,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:20:58,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:20:58,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:20:58,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-20 16:20:58,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-11-20 16:20:58,050 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (139)] Forceful destruction successful, exit code 0 [2022-11-20 16:20:58,250 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable260,139 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 16:20:58,250 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:20:58,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:20:58,250 INFO L85 PathProgramCache]: Analyzing trace with hash 1521896539, now seen corresponding path program 1 times [2022-11-20 16:20:58,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:20:58,251 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1272634169] [2022-11-20 16:20:58,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:20:58,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:20:58,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:20:59,070 INFO L134 CoverageAnalysis]: Checked inductivity of 1073 backedges. 0 proven. 1065 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-20 16:20:59,071 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:20:59,071 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1272634169] [2022-11-20 16:20:59,071 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1272634169] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 16:20:59,071 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [179103081] [2022-11-20 16:20:59,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:20:59,071 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 16:20:59,071 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 [2022-11-20 16:20:59,072 INFO L229 MonitoredProcess]: Starting monitored process 140 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 16:20:59,075 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (140)] Waiting until timeout for monitored process [2022-11-20 16:21:00,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:21:00,474 INFO L263 TraceCheckSpWp]: Trace formula consists of 668 conjuncts, 32 conjunts are in the unsatisfiable core [2022-11-20 16:21:00,477 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 16:21:00,718 INFO L134 CoverageAnalysis]: Checked inductivity of 1073 backedges. 0 proven. 1065 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-20 16:21:00,719 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 16:21:01,967 INFO L134 CoverageAnalysis]: Checked inductivity of 1073 backedges. 0 proven. 1065 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-20 16:21:01,968 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [179103081] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 16:21:01,968 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 16:21:01,968 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33, 33] total 66 [2022-11-20 16:21:01,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [347763743] [2022-11-20 16:21:01,968 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 16:21:01,969 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 66 states [2022-11-20 16:21:01,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:21:01,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2022-11-20 16:21:01,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1122, Invalid=3168, Unknown=0, NotChecked=0, Total=4290 [2022-11-20 16:21:01,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:21:01,970 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:21:01,970 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 66 states, 66 states have (on average 6.287878787878788) internal successors, (415), 66 states have internal predecessors, (415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:21:01,970 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:21:01,970 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:21:01,970 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:21:01,970 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:21:01,971 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:21:01,971 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-11-20 16:21:01,971 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2022-11-20 16:21:01,971 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:21:11,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:21:11,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:21:11,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:21:11,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:21:11,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:21:11,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-20 16:21:11,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-11-20 16:21:11,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2022-11-20 16:21:11,740 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (140)] Forceful destruction successful, exit code 0 [2022-11-20 16:21:11,929 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable261,140 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 16:21:11,929 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:21:11,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:21:11,930 INFO L85 PathProgramCache]: Analyzing trace with hash -2138809677, now seen corresponding path program 1 times [2022-11-20 16:21:11,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:21:11,930 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [69542702] [2022-11-20 16:21:11,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:21:11,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:21:12,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:21:15,129 INFO L134 CoverageAnalysis]: Checked inductivity of 4689 backedges. 0 proven. 4681 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-20 16:21:15,129 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:21:15,129 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [69542702] [2022-11-20 16:21:15,129 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [69542702] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 16:21:15,129 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1147840010] [2022-11-20 16:21:15,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:21:15,129 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 16:21:15,130 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 [2022-11-20 16:21:15,131 INFO L229 MonitoredProcess]: Starting monitored process 141 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 16:21:15,151 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (141)] Waiting until timeout for monitored process [2022-11-20 16:21:16,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:21:16,735 INFO L263 TraceCheckSpWp]: Trace formula consists of 1084 conjuncts, 64 conjunts are in the unsatisfiable core [2022-11-20 16:21:16,740 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 16:21:17,244 INFO L134 CoverageAnalysis]: Checked inductivity of 4689 backedges. 0 proven. 4681 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-20 16:21:17,244 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 16:21:21,290 INFO L134 CoverageAnalysis]: Checked inductivity of 4689 backedges. 0 proven. 4681 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-20 16:21:21,290 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1147840010] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 16:21:21,291 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 16:21:21,291 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [65, 65, 65] total 130 [2022-11-20 16:21:21,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [665361121] [2022-11-20 16:21:21,291 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 16:21:21,292 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 130 states [2022-11-20 16:21:21,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:21:21,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 130 interpolants. [2022-11-20 16:21:21,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4290, Invalid=12480, Unknown=0, NotChecked=0, Total=16770 [2022-11-20 16:21:21,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:21:21,296 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:21:21,297 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 130 states, 130 states have (on average 5.653846153846154) internal successors, (735), 130 states have internal predecessors, (735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:21:21,297 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:21:21,297 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:21:21,297 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:21:21,297 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:21:21,297 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:21:21,297 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-11-20 16:21:21,297 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2022-11-20 16:21:21,297 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 93 states. [2022-11-20 16:21:21,297 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:21:31,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:21:31,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:21:31,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:21:31,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:21:31,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:21:31,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-20 16:21:31,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-11-20 16:21:31,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2022-11-20 16:21:31,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 99 states. [2022-11-20 16:21:31,186 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (141)] Forceful destruction successful, exit code 0 [2022-11-20 16:21:31,377 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable262,141 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 16:21:31,377 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:21:31,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:21:31,377 INFO L85 PathProgramCache]: Analyzing trace with hash -1422907204, now seen corresponding path program 1 times [2022-11-20 16:21:31,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:21:31,378 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1384620359] [2022-11-20 16:21:31,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:21:31,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:21:31,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 16:21:31,455 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 16:21:31,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 16:21:31,561 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 16:21:31,561 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-20 16:21:31,561 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 7 remaining) [2022-11-20 16:21:31,561 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 7 remaining) [2022-11-20 16:21:31,561 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 7 remaining) [2022-11-20 16:21:31,561 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 7 remaining) [2022-11-20 16:21:31,562 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 7 remaining) [2022-11-20 16:21:31,562 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (1 of 7 remaining) [2022-11-20 16:21:31,562 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK (0 of 7 remaining) [2022-11-20 16:21:31,562 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable263 [2022-11-20 16:21:31,567 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 16:21:31,567 WARN L233 ceAbstractionStarter]: 32 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-20 16:21:31,567 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 33 thread instances. [2022-11-20 16:21:31,679 INFO L144 ThreadInstanceAdder]: Constructed 33 joinOtherThreadTransitions. [2022-11-20 16:21:31,688 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 16:21:31,688 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-11-20 16:21:31,688 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 [2022-11-20 16:21:31,690 INFO L229 MonitoredProcess]: Starting monitored process 142 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-11-20 16:21:31,701 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-11-20 16:21:31,701 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2022-11-20 16:21:31,702 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@46174585, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 16:21:31,702 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-11-20 16:21:31,727 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (142)] Waiting until timeout for monitored process [2022-11-20 16:21:31,753 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:21:31,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:21:31,754 INFO L85 PathProgramCache]: Analyzing trace with hash 860780014, now seen corresponding path program 1 times [2022-11-20 16:21:31,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:21:31,754 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1472091507] [2022-11-20 16:21:31,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:21:31,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:21:31,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:21:31,780 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:21:31,780 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:21:31,780 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1472091507] [2022-11-20 16:21:31,780 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1472091507] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 16:21:31,781 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 16:21:31,781 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 16:21:31,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264063076] [2022-11-20 16:21:31,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 16:21:31,781 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-20 16:21:31,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:21:31,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-20 16:21:31,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-20 16:21:31,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:21:31,782 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:21:31,782 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:21:31,782 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:21:31,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:21:31,783 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable264 [2022-11-20 16:21:31,783 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:21:31,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:21:31,784 INFO L85 PathProgramCache]: Analyzing trace with hash -1456802397, now seen corresponding path program 1 times [2022-11-20 16:21:31,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:21:31,784 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [172793143] [2022-11-20 16:21:31,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:21:31,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:21:31,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:21:31,821 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:21:31,821 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:21:31,822 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [172793143] [2022-11-20 16:21:31,822 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [172793143] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 16:21:31,822 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 16:21:31,822 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 16:21:31,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1998494147] [2022-11-20 16:21:31,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 16:21:31,822 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 16:21:31,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:21:31,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 16:21:31,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 16:21:31,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:21:31,823 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:21:31,823 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:21:31,823 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:21:31,823 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:21:32,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:21:32,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:21:32,307 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable265 [2022-11-20 16:21:32,307 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:21:32,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:21:32,307 INFO L85 PathProgramCache]: Analyzing trace with hash -1305880744, now seen corresponding path program 1 times [2022-11-20 16:21:32,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:21:32,308 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [47874836] [2022-11-20 16:21:32,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:21:32,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:21:32,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:21:32,361 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:21:32,362 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:21:32,362 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [47874836] [2022-11-20 16:21:32,362 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [47874836] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 16:21:32,362 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2118982807] [2022-11-20 16:21:32,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:21:32,362 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 16:21:32,362 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 [2022-11-20 16:21:32,364 INFO L229 MonitoredProcess]: Starting monitored process 143 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 16:21:32,366 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (143)] Waiting until timeout for monitored process [2022-11-20 16:21:33,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:21:33,866 INFO L263 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 16:21:33,867 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 16:21:33,892 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:21:33,893 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 16:21:33,927 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:21:33,928 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2118982807] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 16:21:33,928 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 16:21:33,928 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-11-20 16:21:33,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219281875] [2022-11-20 16:21:33,928 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 16:21:33,928 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-20 16:21:33,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:21:33,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-20 16:21:33,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-20 16:21:33,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:21:33,929 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:21:33,930 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.4) internal successors, (74), 10 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:21:33,930 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:21:33,930 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:21:33,930 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:21:34,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:21:34,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:21:34,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:21:34,288 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (143)] Forceful destruction successful, exit code 0 [2022-11-20 16:21:34,478 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 143 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable266 [2022-11-20 16:21:34,478 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:21:34,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:21:34,478 INFO L85 PathProgramCache]: Analyzing trace with hash -866870369, now seen corresponding path program 1 times [2022-11-20 16:21:34,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:21:34,478 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [750311054] [2022-11-20 16:21:34,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:21:34,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:21:34,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:21:34,555 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-20 16:21:34,555 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:21:34,556 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [750311054] [2022-11-20 16:21:34,556 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [750311054] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 16:21:34,556 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 16:21:34,556 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 16:21:34,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1385322289] [2022-11-20 16:21:34,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 16:21:34,556 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 16:21:34,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:21:34,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 16:21:34,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 16:21:34,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:21:34,557 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:21:34,558 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:21:34,558 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:21:34,558 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:21:34,558 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:21:34,558 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:21:34,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:21:34,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:21:34,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:21:34,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 16:21:34,889 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable267 [2022-11-20 16:21:34,889 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:21:34,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:21:34,889 INFO L85 PathProgramCache]: Analyzing trace with hash 1283710426, now seen corresponding path program 1 times [2022-11-20 16:21:34,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:21:34,890 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1922668120] [2022-11-20 16:21:34,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:21:34,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:21:34,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:21:34,939 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-20 16:21:34,939 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:21:34,939 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1922668120] [2022-11-20 16:21:34,940 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1922668120] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 16:21:34,940 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 16:21:34,940 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 16:21:34,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744452880] [2022-11-20 16:21:34,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 16:21:34,940 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 16:21:34,940 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:21:34,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 16:21:34,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 16:21:34,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:21:34,941 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:21:34,941 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:21:34,942 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:21:34,942 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:21:34,942 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:21:34,942 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-11-20 16:21:34,942 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:21:35,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:21:35,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:21:35,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:21:35,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:21:35,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:21:35,593 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable268 [2022-11-20 16:21:35,594 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:21:35,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:21:35,594 INFO L85 PathProgramCache]: Analyzing trace with hash 1705549169, now seen corresponding path program 1 times [2022-11-20 16:21:35,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:21:35,594 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1692683740] [2022-11-20 16:21:35,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:21:35,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:21:35,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:21:35,683 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-20 16:21:35,684 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:21:35,684 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1692683740] [2022-11-20 16:21:35,684 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1692683740] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 16:21:35,684 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1967217667] [2022-11-20 16:21:35,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:21:35,684 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 16:21:35,684 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 [2022-11-20 16:21:35,686 INFO L229 MonitoredProcess]: Starting monitored process 144 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 16:21:35,688 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (144)] Waiting until timeout for monitored process [2022-11-20 16:21:37,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:21:37,110 INFO L263 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-20 16:21:37,111 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 16:21:37,188 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-20 16:21:37,188 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 16:21:37,294 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-20 16:21:37,294 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1967217667] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 16:21:37,294 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 16:21:37,295 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 9, 9] total 19 [2022-11-20 16:21:37,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188021821] [2022-11-20 16:21:37,295 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 16:21:37,295 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-20 16:21:37,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:21:37,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-20 16:21:37,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=263, Unknown=0, NotChecked=0, Total=342 [2022-11-20 16:21:37,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:21:37,296 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:21:37,296 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 10.578947368421053) internal successors, (201), 19 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:21:37,297 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:21:37,297 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:21:37,297 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:21:37,297 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:21:37,297 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:21:37,297 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:21:38,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:21:38,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:21:38,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:21:38,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:21:38,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:21:38,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-20 16:21:38,286 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (144)] Ended with exit code 0 [2022-11-20 16:21:38,475 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 144 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable269 [2022-11-20 16:21:38,476 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:21:38,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:21:38,476 INFO L85 PathProgramCache]: Analyzing trace with hash -1319080937, now seen corresponding path program 1 times [2022-11-20 16:21:38,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:21:38,476 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [233347426] [2022-11-20 16:21:38,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:21:38,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:21:38,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:21:38,786 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 217 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-20 16:21:38,786 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:21:38,786 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [233347426] [2022-11-20 16:21:38,786 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [233347426] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 16:21:38,786 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1191409300] [2022-11-20 16:21:38,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:21:38,786 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 16:21:38,787 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 [2022-11-20 16:21:38,788 INFO L229 MonitoredProcess]: Starting monitored process 145 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 16:21:38,791 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (145)] Waiting until timeout for monitored process [2022-11-20 16:21:40,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:21:40,314 INFO L263 TraceCheckSpWp]: Trace formula consists of 460 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-20 16:21:40,316 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 16:21:40,425 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 217 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-20 16:21:40,425 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 16:21:40,749 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 217 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-20 16:21:40,750 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1191409300] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 16:21:40,750 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 16:21:40,750 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 34 [2022-11-20 16:21:40,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1036777041] [2022-11-20 16:21:40,750 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 16:21:40,751 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-11-20 16:21:40,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:21:40,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-11-20 16:21:40,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2022-11-20 16:21:40,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:21:40,752 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:21:40,753 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 7.5) internal successors, (255), 34 states have internal predecessors, (255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:21:40,753 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:21:40,753 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:21:40,753 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:21:40,753 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:21:40,753 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:21:40,753 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-11-20 16:21:40,753 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:21:43,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:21:43,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:21:43,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:21:43,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:21:43,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:21:43,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-20 16:21:43,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-11-20 16:21:43,016 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (145)] Forceful destruction successful, exit code 0 [2022-11-20 16:21:43,205 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable270,145 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 16:21:43,206 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:21:43,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:21:43,206 INFO L85 PathProgramCache]: Analyzing trace with hash -1753078621, now seen corresponding path program 1 times [2022-11-20 16:21:43,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:21:43,206 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1849368589] [2022-11-20 16:21:43,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:21:43,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:21:43,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:21:44,111 INFO L134 CoverageAnalysis]: Checked inductivity of 1073 backedges. 0 proven. 1065 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-20 16:21:44,111 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:21:44,111 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1849368589] [2022-11-20 16:21:44,111 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1849368589] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 16:21:44,111 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1799276861] [2022-11-20 16:21:44,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:21:44,112 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 16:21:44,112 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 [2022-11-20 16:21:44,116 INFO L229 MonitoredProcess]: Starting monitored process 146 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 16:21:44,119 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (146)] Waiting until timeout for monitored process [2022-11-20 16:21:45,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:21:45,724 INFO L263 TraceCheckSpWp]: Trace formula consists of 668 conjuncts, 32 conjunts are in the unsatisfiable core [2022-11-20 16:21:45,726 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 16:21:45,949 INFO L134 CoverageAnalysis]: Checked inductivity of 1073 backedges. 0 proven. 1065 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-20 16:21:45,949 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 16:21:47,112 INFO L134 CoverageAnalysis]: Checked inductivity of 1073 backedges. 0 proven. 1065 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-20 16:21:47,112 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1799276861] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 16:21:47,112 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 16:21:47,113 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33, 33] total 66 [2022-11-20 16:21:47,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [338831301] [2022-11-20 16:21:47,113 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 16:21:47,114 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 66 states [2022-11-20 16:21:47,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:21:47,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2022-11-20 16:21:47,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1122, Invalid=3168, Unknown=0, NotChecked=0, Total=4290 [2022-11-20 16:21:47,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:21:47,116 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:21:47,116 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 66 states, 66 states have (on average 6.287878787878788) internal successors, (415), 66 states have internal predecessors, (415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:21:47,116 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:21:47,116 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:21:47,116 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:21:47,116 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:21:47,116 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:21:47,116 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-11-20 16:21:47,116 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2022-11-20 16:21:47,116 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:21:54,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:21:54,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:21:54,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:21:54,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:21:54,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:21:54,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-20 16:21:54,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-11-20 16:21:54,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2022-11-20 16:21:54,763 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (146)] Forceful destruction successful, exit code 0 [2022-11-20 16:21:54,953 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 146 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable271 [2022-11-20 16:21:54,953 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:21:54,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:21:54,953 INFO L85 PathProgramCache]: Analyzing trace with hash 1304065211, now seen corresponding path program 1 times [2022-11-20 16:21:54,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:21:54,953 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1069907253] [2022-11-20 16:21:54,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:21:54,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:21:55,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:21:57,710 INFO L134 CoverageAnalysis]: Checked inductivity of 4689 backedges. 0 proven. 4681 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-20 16:21:57,710 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:21:57,710 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1069907253] [2022-11-20 16:21:57,710 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1069907253] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 16:21:57,710 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1012896993] [2022-11-20 16:21:57,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:21:57,710 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 16:21:57,711 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 [2022-11-20 16:21:57,712 INFO L229 MonitoredProcess]: Starting monitored process 147 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 16:21:57,714 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (147)] Waiting until timeout for monitored process [2022-11-20 16:21:59,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:21:59,334 INFO L263 TraceCheckSpWp]: Trace formula consists of 1084 conjuncts, 64 conjunts are in the unsatisfiable core [2022-11-20 16:21:59,337 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 16:21:59,795 INFO L134 CoverageAnalysis]: Checked inductivity of 4689 backedges. 0 proven. 4681 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-20 16:21:59,796 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 16:22:03,680 INFO L134 CoverageAnalysis]: Checked inductivity of 4689 backedges. 0 proven. 4681 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-20 16:22:03,681 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1012896993] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 16:22:03,681 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 16:22:03,681 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [65, 65, 65] total 130 [2022-11-20 16:22:03,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [959259212] [2022-11-20 16:22:03,682 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 16:22:03,682 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 130 states [2022-11-20 16:22:03,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:22:03,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 130 interpolants. [2022-11-20 16:22:03,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4290, Invalid=12480, Unknown=0, NotChecked=0, Total=16770 [2022-11-20 16:22:03,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:22:03,686 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:22:03,687 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 130 states, 130 states have (on average 5.653846153846154) internal successors, (735), 130 states have internal predecessors, (735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:22:03,687 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:22:03,687 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:22:03,687 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:22:03,687 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:22:03,687 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:22:03,687 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-11-20 16:22:03,687 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2022-11-20 16:22:03,688 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 93 states. [2022-11-20 16:22:03,688 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:22:13,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:22:13,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:22:13,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:22:13,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:22:13,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:22:13,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-20 16:22:13,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-11-20 16:22:13,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2022-11-20 16:22:13,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 102 states. [2022-11-20 16:22:13,870 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (147)] Forceful destruction successful, exit code 0 [2022-11-20 16:22:14,058 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable272,147 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 16:22:14,058 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:22:14,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:22:14,058 INFO L85 PathProgramCache]: Analyzing trace with hash 1462110375, now seen corresponding path program 1 times [2022-11-20 16:22:14,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:22:14,059 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [607027733] [2022-11-20 16:22:14,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:22:14,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:22:14,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 16:22:14,135 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 16:22:14,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 16:22:14,318 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 16:22:14,318 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-20 16:22:14,319 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 7 remaining) [2022-11-20 16:22:14,319 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 7 remaining) [2022-11-20 16:22:14,319 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 7 remaining) [2022-11-20 16:22:14,319 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 7 remaining) [2022-11-20 16:22:14,319 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 7 remaining) [2022-11-20 16:22:14,320 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (1 of 7 remaining) [2022-11-20 16:22:14,320 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK (0 of 7 remaining) [2022-11-20 16:22:14,320 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable273 [2022-11-20 16:22:14,324 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 16:22:14,324 WARN L233 ceAbstractionStarter]: 33 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-20 16:22:14,325 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 34 thread instances. [2022-11-20 16:22:14,429 INFO L144 ThreadInstanceAdder]: Constructed 34 joinOtherThreadTransitions. [2022-11-20 16:22:14,451 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 16:22:14,451 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-11-20 16:22:14,459 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 [2022-11-20 16:22:14,460 INFO L229 MonitoredProcess]: Starting monitored process 148 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-11-20 16:22:14,466 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-11-20 16:22:14,467 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2022-11-20 16:22:14,467 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@46174585, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 16:22:14,467 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-11-20 16:22:14,477 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (148)] Waiting until timeout for monitored process [2022-11-20 16:22:14,508 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:22:14,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:22:14,508 INFO L85 PathProgramCache]: Analyzing trace with hash 1408843758, now seen corresponding path program 1 times [2022-11-20 16:22:14,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:22:14,509 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [618296020] [2022-11-20 16:22:14,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:22:14,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:22:14,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:22:14,545 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:22:14,546 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:22:14,546 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [618296020] [2022-11-20 16:22:14,546 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [618296020] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 16:22:14,546 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 16:22:14,547 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 16:22:14,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [419266777] [2022-11-20 16:22:14,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 16:22:14,547 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-20 16:22:14,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:22:14,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-20 16:22:14,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-20 16:22:14,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:22:14,548 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:22:14,549 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:22:14,549 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:22:14,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:22:14,551 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable274 [2022-11-20 16:22:14,551 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:22:14,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:22:14,551 INFO L85 PathProgramCache]: Analyzing trace with hash 1246519331, now seen corresponding path program 1 times [2022-11-20 16:22:14,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:22:14,552 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [246668600] [2022-11-20 16:22:14,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:22:14,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:22:14,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:22:14,600 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:22:14,601 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:22:14,601 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [246668600] [2022-11-20 16:22:14,601 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [246668600] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 16:22:14,601 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 16:22:14,601 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 16:22:14,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1394472650] [2022-11-20 16:22:14,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 16:22:14,602 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 16:22:14,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:22:14,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 16:22:14,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 16:22:14,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:22:14,603 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:22:14,603 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:22:14,604 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:22:14,604 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:22:15,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:22:15,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:22:15,262 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable275 [2022-11-20 16:22:15,263 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:22:15,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:22:15,263 INFO L85 PathProgramCache]: Analyzing trace with hash 1022705596, now seen corresponding path program 1 times [2022-11-20 16:22:15,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:22:15,263 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [853634542] [2022-11-20 16:22:15,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:22:15,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:22:15,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:22:15,317 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:22:15,317 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:22:15,317 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [853634542] [2022-11-20 16:22:15,317 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [853634542] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 16:22:15,318 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [429567100] [2022-11-20 16:22:15,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:22:15,318 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 16:22:15,318 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 [2022-11-20 16:22:15,319 INFO L229 MonitoredProcess]: Starting monitored process 149 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 16:22:15,322 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (149)] Waiting until timeout for monitored process [2022-11-20 16:22:16,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:22:16,793 INFO L263 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 16:22:16,794 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 16:22:16,818 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:22:16,818 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 16:22:16,850 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:22:16,850 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [429567100] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 16:22:16,850 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 16:22:16,850 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-11-20 16:22:16,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1402187285] [2022-11-20 16:22:16,850 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 16:22:16,851 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-20 16:22:16,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:22:16,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-20 16:22:16,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-20 16:22:16,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:22:16,851 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:22:16,852 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.4) internal successors, (74), 10 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:22:16,852 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:22:16,852 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:22:16,852 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:22:17,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:22:17,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:22:17,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:22:17,190 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (149)] Forceful destruction successful, exit code 0 [2022-11-20 16:22:17,378 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable276,149 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 16:22:17,379 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:22:17,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:22:17,379 INFO L85 PathProgramCache]: Analyzing trace with hash 2145720523, now seen corresponding path program 1 times [2022-11-20 16:22:17,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:22:17,379 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [634834252] [2022-11-20 16:22:17,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:22:17,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:22:17,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:22:17,471 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-20 16:22:17,471 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:22:17,471 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [634834252] [2022-11-20 16:22:17,471 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [634834252] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 16:22:17,471 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 16:22:17,472 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 16:22:17,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [463094993] [2022-11-20 16:22:17,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 16:22:17,472 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 16:22:17,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:22:17,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 16:22:17,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 16:22:17,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:22:17,473 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:22:17,473 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:22:17,473 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:22:17,473 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:22:17,473 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:22:17,473 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:22:17,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:22:17,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:22:17,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:22:17,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 16:22:17,781 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable277 [2022-11-20 16:22:17,781 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:22:17,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:22:17,782 INFO L85 PathProgramCache]: Analyzing trace with hash -2008549070, now seen corresponding path program 1 times [2022-11-20 16:22:17,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:22:17,782 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [735130905] [2022-11-20 16:22:17,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:22:17,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:22:17,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:22:17,830 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-20 16:22:17,830 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:22:17,830 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [735130905] [2022-11-20 16:22:17,830 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [735130905] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 16:22:17,830 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 16:22:17,830 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 16:22:17,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222506233] [2022-11-20 16:22:17,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 16:22:17,831 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 16:22:17,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:22:17,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 16:22:17,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 16:22:17,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:22:17,836 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:22:17,836 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:22:17,836 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:22:17,837 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:22:17,837 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:22:17,837 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-11-20 16:22:17,837 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:22:18,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:22:18,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:22:18,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:22:18,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:22:18,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:22:18,375 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable278 [2022-11-20 16:22:18,375 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:22:18,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:22:18,375 INFO L85 PathProgramCache]: Analyzing trace with hash -218444768, now seen corresponding path program 1 times [2022-11-20 16:22:18,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:22:18,375 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [374585271] [2022-11-20 16:22:18,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:22:18,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:22:18,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:22:18,455 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-20 16:22:18,456 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:22:18,456 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [374585271] [2022-11-20 16:22:18,456 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [374585271] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 16:22:18,456 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [295600088] [2022-11-20 16:22:18,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:22:18,456 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 16:22:18,456 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 [2022-11-20 16:22:18,457 INFO L229 MonitoredProcess]: Starting monitored process 150 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 16:22:18,460 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (150)] Waiting until timeout for monitored process [2022-11-20 16:22:19,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:22:19,963 INFO L263 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-20 16:22:19,964 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 16:22:20,041 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-20 16:22:20,041 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 16:22:20,149 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-20 16:22:20,149 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [295600088] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 16:22:20,150 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 16:22:20,150 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 9, 9] total 19 [2022-11-20 16:22:20,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2064211995] [2022-11-20 16:22:20,150 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 16:22:20,150 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-20 16:22:20,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:22:20,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-20 16:22:20,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=263, Unknown=0, NotChecked=0, Total=342 [2022-11-20 16:22:20,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:22:20,152 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:22:20,152 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 10.578947368421053) internal successors, (201), 19 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:22:20,152 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:22:20,152 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:22:20,152 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:22:20,152 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:22:20,153 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:22:20,153 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:22:21,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:22:21,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:22:21,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:22:21,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:22:21,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:22:21,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-20 16:22:21,162 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (150)] Ended with exit code 0 [2022-11-20 16:22:21,351 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 150 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable279 [2022-11-20 16:22:21,351 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:22:21,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:22:21,352 INFO L85 PathProgramCache]: Analyzing trace with hash 49487551, now seen corresponding path program 1 times [2022-11-20 16:22:21,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:22:21,352 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [533432340] [2022-11-20 16:22:21,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:22:21,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:22:21,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:22:21,646 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 217 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-20 16:22:21,646 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:22:21,646 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [533432340] [2022-11-20 16:22:21,646 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [533432340] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 16:22:21,646 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1904577866] [2022-11-20 16:22:21,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:22:21,646 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 16:22:21,647 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 [2022-11-20 16:22:21,648 INFO L229 MonitoredProcess]: Starting monitored process 151 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 16:22:21,650 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (151)] Waiting until timeout for monitored process [2022-11-20 16:22:23,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:22:23,216 INFO L263 TraceCheckSpWp]: Trace formula consists of 460 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-20 16:22:23,217 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 16:22:23,321 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 217 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-20 16:22:23,322 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 16:22:23,642 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 217 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-20 16:22:23,642 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1904577866] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 16:22:23,642 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 16:22:23,642 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 34 [2022-11-20 16:22:23,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892532563] [2022-11-20 16:22:23,643 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 16:22:23,643 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-11-20 16:22:23,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:22:23,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-11-20 16:22:23,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2022-11-20 16:22:23,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:22:23,644 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:22:23,644 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 7.5) internal successors, (255), 34 states have internal predecessors, (255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:22:23,645 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:22:23,645 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:22:23,645 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:22:23,645 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:22:23,645 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:22:23,645 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-11-20 16:22:23,645 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:22:25,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:22:25,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:22:25,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:22:25,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:22:25,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:22:25,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-20 16:22:25,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-11-20 16:22:25,862 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (151)] Forceful destruction successful, exit code 0 [2022-11-20 16:22:26,051 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable280,151 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 16:22:26,051 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:22:26,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:22:26,051 INFO L85 PathProgramCache]: Analyzing trace with hash 2115825963, now seen corresponding path program 1 times [2022-11-20 16:22:26,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:22:26,051 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [46212293] [2022-11-20 16:22:26,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:22:26,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:22:26,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:22:26,793 INFO L134 CoverageAnalysis]: Checked inductivity of 1073 backedges. 0 proven. 1065 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-20 16:22:26,793 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:22:26,793 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [46212293] [2022-11-20 16:22:26,793 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [46212293] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 16:22:26,793 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1369539051] [2022-11-20 16:22:26,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:22:26,793 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 16:22:26,794 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 [2022-11-20 16:22:26,795 INFO L229 MonitoredProcess]: Starting monitored process 152 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 16:22:26,797 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (152)] Waiting until timeout for monitored process [2022-11-20 16:22:28,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:22:28,342 INFO L263 TraceCheckSpWp]: Trace formula consists of 668 conjuncts, 32 conjunts are in the unsatisfiable core [2022-11-20 16:22:28,344 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 16:22:28,550 INFO L134 CoverageAnalysis]: Checked inductivity of 1073 backedges. 0 proven. 1065 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-20 16:22:28,550 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 16:22:29,627 INFO L134 CoverageAnalysis]: Checked inductivity of 1073 backedges. 0 proven. 1065 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-20 16:22:29,627 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1369539051] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 16:22:29,628 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 16:22:29,628 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33, 33] total 66 [2022-11-20 16:22:29,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1946556943] [2022-11-20 16:22:29,628 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 16:22:29,629 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 66 states [2022-11-20 16:22:29,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:22:29,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2022-11-20 16:22:29,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1122, Invalid=3168, Unknown=0, NotChecked=0, Total=4290 [2022-11-20 16:22:29,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:22:29,631 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:22:29,632 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 66 states, 66 states have (on average 6.287878787878788) internal successors, (415), 66 states have internal predecessors, (415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:22:29,632 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:22:29,632 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:22:29,632 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:22:29,633 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:22:29,633 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:22:29,633 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-11-20 16:22:29,633 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2022-11-20 16:22:29,633 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:22:39,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:22:39,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:22:39,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:22:39,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:22:39,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:22:39,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-20 16:22:39,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-11-20 16:22:39,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2022-11-20 16:22:39,087 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (152)] Ended with exit code 0 [2022-11-20 16:22:39,273 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 152 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable281 [2022-11-20 16:22:39,273 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:22:39,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:22:39,274 INFO L85 PathProgramCache]: Analyzing trace with hash -346225917, now seen corresponding path program 1 times [2022-11-20 16:22:39,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:22:39,274 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1269180126] [2022-11-20 16:22:39,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:22:39,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:22:39,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:22:42,253 INFO L134 CoverageAnalysis]: Checked inductivity of 4689 backedges. 0 proven. 4681 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-20 16:22:42,254 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:22:42,254 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1269180126] [2022-11-20 16:22:42,254 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1269180126] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 16:22:42,254 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1755789069] [2022-11-20 16:22:42,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:22:42,254 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 16:22:42,254 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 [2022-11-20 16:22:42,255 INFO L229 MonitoredProcess]: Starting monitored process 153 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 16:22:42,257 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (153)] Waiting until timeout for monitored process [2022-11-20 16:22:43,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:22:43,994 INFO L263 TraceCheckSpWp]: Trace formula consists of 1084 conjuncts, 64 conjunts are in the unsatisfiable core [2022-11-20 16:22:43,997 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 16:22:44,495 INFO L134 CoverageAnalysis]: Checked inductivity of 4689 backedges. 0 proven. 4681 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-20 16:22:44,495 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 16:22:48,750 INFO L134 CoverageAnalysis]: Checked inductivity of 4689 backedges. 0 proven. 4681 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-20 16:22:48,751 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1755789069] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 16:22:48,751 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 16:22:48,751 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [65, 65, 65] total 130 [2022-11-20 16:22:48,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583273221] [2022-11-20 16:22:48,752 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 16:22:48,753 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 130 states [2022-11-20 16:22:48,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:22:48,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 130 interpolants. [2022-11-20 16:22:48,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4290, Invalid=12480, Unknown=0, NotChecked=0, Total=16770 [2022-11-20 16:22:48,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:22:48,758 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:22:48,759 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 130 states, 130 states have (on average 5.653846153846154) internal successors, (735), 130 states have internal predecessors, (735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:22:48,759 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:22:48,759 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:22:48,759 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:22:48,760 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:22:48,760 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:22:48,760 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-11-20 16:22:48,760 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2022-11-20 16:22:48,760 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 93 states. [2022-11-20 16:22:48,760 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:23:00,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:23:00,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:23:00,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:23:00,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:23:00,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:23:00,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-20 16:23:00,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-11-20 16:23:00,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2022-11-20 16:23:00,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 105 states. [2022-11-20 16:23:00,349 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (153)] Forceful destruction successful, exit code 0 [2022-11-20 16:23:00,537 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 153 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable282 [2022-11-20 16:23:00,537 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:23:00,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:23:00,538 INFO L85 PathProgramCache]: Analyzing trace with hash 779789323, now seen corresponding path program 1 times [2022-11-20 16:23:00,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:23:00,538 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1502149504] [2022-11-20 16:23:00,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:23:00,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:23:00,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 16:23:00,621 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 16:23:00,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 16:23:00,739 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 16:23:00,739 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-20 16:23:00,739 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 7 remaining) [2022-11-20 16:23:00,740 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 7 remaining) [2022-11-20 16:23:00,740 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 7 remaining) [2022-11-20 16:23:00,740 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 7 remaining) [2022-11-20 16:23:00,740 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 7 remaining) [2022-11-20 16:23:00,740 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (1 of 7 remaining) [2022-11-20 16:23:00,740 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK (0 of 7 remaining) [2022-11-20 16:23:00,740 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable283 [2022-11-20 16:23:00,744 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 16:23:00,744 WARN L233 ceAbstractionStarter]: 34 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-20 16:23:00,745 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 35 thread instances. [2022-11-20 16:23:00,847 INFO L144 ThreadInstanceAdder]: Constructed 35 joinOtherThreadTransitions. [2022-11-20 16:23:00,855 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 16:23:00,856 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-11-20 16:23:00,856 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 [2022-11-20 16:23:00,857 INFO L229 MonitoredProcess]: Starting monitored process 154 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-11-20 16:23:00,865 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-11-20 16:23:00,866 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2022-11-20 16:23:00,866 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@46174585, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 16:23:00,866 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-11-20 16:23:00,877 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (154)] Waiting until timeout for monitored process [2022-11-20 16:23:00,898 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:23:00,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:23:00,899 INFO L85 PathProgramCache]: Analyzing trace with hash -454514194, now seen corresponding path program 1 times [2022-11-20 16:23:00,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:23:00,899 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1792227746] [2022-11-20 16:23:00,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:23:00,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:23:00,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:23:00,935 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:23:00,935 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:23:00,935 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1792227746] [2022-11-20 16:23:00,935 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1792227746] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 16:23:00,935 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 16:23:00,936 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 16:23:00,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [160393450] [2022-11-20 16:23:00,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 16:23:00,936 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-20 16:23:00,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:23:00,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-20 16:23:00,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-20 16:23:00,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:23:00,937 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:23:00,937 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:23:00,937 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:23:00,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:23:00,939 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable284 [2022-11-20 16:23:00,939 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:23:00,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:23:00,940 INFO L85 PathProgramCache]: Analyzing trace with hash 1560965795, now seen corresponding path program 1 times [2022-11-20 16:23:00,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:23:00,940 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [581368929] [2022-11-20 16:23:00,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:23:00,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:23:00,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:23:00,985 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:23:00,986 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:23:00,986 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [581368929] [2022-11-20 16:23:00,986 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [581368929] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 16:23:00,986 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 16:23:00,986 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 16:23:00,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1232478070] [2022-11-20 16:23:00,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 16:23:00,987 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 16:23:00,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:23:00,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 16:23:00,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 16:23:00,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:23:00,989 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:23:00,989 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:23:00,989 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:23:00,989 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:23:01,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:23:01,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:23:01,635 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable285 [2022-11-20 16:23:01,635 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:23:01,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:23:01,636 INFO L85 PathProgramCache]: Analyzing trace with hash -1042843616, now seen corresponding path program 1 times [2022-11-20 16:23:01,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:23:01,636 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [152377388] [2022-11-20 16:23:01,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:23:01,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:23:01,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:23:01,696 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:23:01,696 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:23:01,696 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [152377388] [2022-11-20 16:23:01,696 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [152377388] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 16:23:01,697 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1386509374] [2022-11-20 16:23:01,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:23:01,697 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 16:23:01,697 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 [2022-11-20 16:23:01,699 INFO L229 MonitoredProcess]: Starting monitored process 155 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 16:23:01,701 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (155)] Waiting until timeout for monitored process [2022-11-20 16:23:03,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:23:03,304 INFO L263 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 16:23:03,305 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 16:23:03,327 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:23:03,327 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 16:23:03,356 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:23:03,356 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1386509374] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 16:23:03,356 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 16:23:03,356 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-11-20 16:23:03,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326972164] [2022-11-20 16:23:03,357 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 16:23:03,357 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-20 16:23:03,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:23:03,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-20 16:23:03,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-20 16:23:03,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:23:03,358 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:23:03,358 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.4) internal successors, (74), 10 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:23:03,358 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:23:03,358 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:23:03,358 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:23:03,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:23:03,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:23:03,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:23:03,679 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (155)] Forceful destruction successful, exit code 0 [2022-11-20 16:23:03,867 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable286,155 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 16:23:03,868 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:23:03,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:23:03,868 INFO L85 PathProgramCache]: Analyzing trace with hash 256554487, now seen corresponding path program 1 times [2022-11-20 16:23:03,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:23:03,868 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1448760363] [2022-11-20 16:23:03,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:23:03,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:23:03,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:23:03,933 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-20 16:23:03,933 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:23:03,933 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1448760363] [2022-11-20 16:23:03,934 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1448760363] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 16:23:03,934 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 16:23:03,934 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 16:23:03,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340397564] [2022-11-20 16:23:03,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 16:23:03,934 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 16:23:03,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:23:03,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 16:23:03,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 16:23:03,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:23:03,936 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:23:03,936 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:23:03,936 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:23:03,936 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:23:03,936 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:23:03,937 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:23:04,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:23:04,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:23:04,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:23:04,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 16:23:04,267 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable287 [2022-11-20 16:23:04,267 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:23:04,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:23:04,267 INFO L85 PathProgramCache]: Analyzing trace with hash 1238029514, now seen corresponding path program 1 times [2022-11-20 16:23:04,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:23:04,267 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1242355081] [2022-11-20 16:23:04,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:23:04,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:23:04,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:23:04,313 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-20 16:23:04,313 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:23:04,313 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1242355081] [2022-11-20 16:23:04,313 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1242355081] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 16:23:04,313 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 16:23:04,313 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 16:23:04,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1879343000] [2022-11-20 16:23:04,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 16:23:04,314 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 16:23:04,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:23:04,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 16:23:04,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 16:23:04,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:23:04,316 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:23:04,316 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:23:04,316 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:23:04,316 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:23:04,316 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:23:04,316 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-11-20 16:23:04,316 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:23:04,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:23:04,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:23:04,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:23:04,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:23:04,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:23:04,892 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable288 [2022-11-20 16:23:04,893 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:23:04,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:23:04,893 INFO L85 PathProgramCache]: Analyzing trace with hash 683567183, now seen corresponding path program 1 times [2022-11-20 16:23:04,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:23:04,893 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1236146040] [2022-11-20 16:23:04,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:23:04,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:23:04,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:23:04,997 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-20 16:23:04,997 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:23:04,997 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1236146040] [2022-11-20 16:23:04,997 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1236146040] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 16:23:04,997 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1887145357] [2022-11-20 16:23:04,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:23:04,997 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 16:23:04,998 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 [2022-11-20 16:23:05,007 INFO L229 MonitoredProcess]: Starting monitored process 156 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 16:23:05,032 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (156)] Waiting until timeout for monitored process [2022-11-20 16:23:06,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:23:06,727 INFO L263 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-20 16:23:06,728 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 16:23:06,820 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-20 16:23:06,820 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 16:23:06,937 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-20 16:23:06,937 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1887145357] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 16:23:06,937 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 16:23:06,937 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 9, 9] total 19 [2022-11-20 16:23:06,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312057229] [2022-11-20 16:23:06,938 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 16:23:06,938 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-20 16:23:06,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:23:06,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-20 16:23:06,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=263, Unknown=0, NotChecked=0, Total=342 [2022-11-20 16:23:06,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:23:06,939 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:23:06,939 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 10.578947368421053) internal successors, (201), 19 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:23:06,939 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:23:06,939 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:23:06,940 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:23:06,940 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:23:06,940 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:23:06,940 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:23:08,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:23:08,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:23:08,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:23:08,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:23:08,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:23:08,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-20 16:23:08,066 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (156)] Ended with exit code 0 [2022-11-20 16:23:08,253 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 156 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable289 [2022-11-20 16:23:08,253 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:23:08,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:23:08,254 INFO L85 PathProgramCache]: Analyzing trace with hash -42293209, now seen corresponding path program 1 times [2022-11-20 16:23:08,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:23:08,254 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [945351887] [2022-11-20 16:23:08,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:23:08,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:23:08,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:23:08,550 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 217 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-20 16:23:08,550 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:23:08,550 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [945351887] [2022-11-20 16:23:08,550 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [945351887] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 16:23:08,551 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1720704011] [2022-11-20 16:23:08,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:23:08,551 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 16:23:08,551 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 [2022-11-20 16:23:08,552 INFO L229 MonitoredProcess]: Starting monitored process 157 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 16:23:08,555 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (157)] Waiting until timeout for monitored process [2022-11-20 16:23:10,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:23:10,248 INFO L263 TraceCheckSpWp]: Trace formula consists of 460 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-20 16:23:10,251 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 16:23:10,377 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 217 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-20 16:23:10,378 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 16:23:10,733 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 217 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-20 16:23:10,733 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1720704011] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 16:23:10,733 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 16:23:10,734 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 34 [2022-11-20 16:23:10,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1288660609] [2022-11-20 16:23:10,734 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 16:23:10,735 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-11-20 16:23:10,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:23:10,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-11-20 16:23:10,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2022-11-20 16:23:10,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:23:10,736 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:23:10,736 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 7.5) internal successors, (255), 34 states have internal predecessors, (255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:23:10,736 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:23:10,736 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:23:10,736 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:23:10,736 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:23:10,736 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:23:10,736 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-11-20 16:23:10,736 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:23:13,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:23:13,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:23:13,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:23:13,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:23:13,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:23:13,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-20 16:23:13,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-11-20 16:23:13,742 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (157)] Forceful destruction successful, exit code 0 [2022-11-20 16:23:13,930 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable290,157 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 16:23:13,930 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:23:13,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:23:13,931 INFO L85 PathProgramCache]: Analyzing trace with hash 127098099, now seen corresponding path program 1 times [2022-11-20 16:23:13,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:23:13,931 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [113723011] [2022-11-20 16:23:13,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:23:13,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:23:13,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:23:14,902 INFO L134 CoverageAnalysis]: Checked inductivity of 1073 backedges. 0 proven. 1065 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-20 16:23:14,902 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:23:14,902 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [113723011] [2022-11-20 16:23:14,902 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [113723011] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 16:23:14,903 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [353889574] [2022-11-20 16:23:14,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:23:14,903 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 16:23:14,903 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 [2022-11-20 16:23:14,904 INFO L229 MonitoredProcess]: Starting monitored process 158 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 16:23:14,906 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (158)] Waiting until timeout for monitored process [2022-11-20 16:23:16,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:23:16,633 INFO L263 TraceCheckSpWp]: Trace formula consists of 668 conjuncts, 32 conjunts are in the unsatisfiable core [2022-11-20 16:23:16,635 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 16:23:16,847 INFO L134 CoverageAnalysis]: Checked inductivity of 1073 backedges. 0 proven. 1065 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-20 16:23:16,847 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 16:23:17,927 INFO L134 CoverageAnalysis]: Checked inductivity of 1073 backedges. 0 proven. 1065 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-20 16:23:17,927 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [353889574] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 16:23:17,928 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 16:23:17,928 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33, 33] total 66 [2022-11-20 16:23:17,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262577247] [2022-11-20 16:23:17,928 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 16:23:17,928 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 66 states [2022-11-20 16:23:17,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:23:17,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2022-11-20 16:23:17,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1122, Invalid=3168, Unknown=0, NotChecked=0, Total=4290 [2022-11-20 16:23:17,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:23:17,930 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:23:17,930 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 66 states, 66 states have (on average 6.287878787878788) internal successors, (415), 66 states have internal predecessors, (415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:23:17,930 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:23:17,930 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:23:17,930 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:23:17,930 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:23:17,930 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:23:17,930 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-11-20 16:23:17,931 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2022-11-20 16:23:17,931 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:23:30,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:23:30,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:23:30,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:23:30,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:23:30,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:23:30,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-20 16:23:30,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-11-20 16:23:30,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2022-11-20 16:23:30,120 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (158)] Ended with exit code 0 [2022-11-20 16:23:30,309 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable291,158 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 16:23:30,309 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:23:30,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:23:30,309 INFO L85 PathProgramCache]: Analyzing trace with hash 1383641227, now seen corresponding path program 1 times [2022-11-20 16:23:30,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:23:30,310 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1941892161] [2022-11-20 16:23:30,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:23:30,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:23:30,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:23:33,172 INFO L134 CoverageAnalysis]: Checked inductivity of 4689 backedges. 0 proven. 4681 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-20 16:23:33,172 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:23:33,172 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1941892161] [2022-11-20 16:23:33,172 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1941892161] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 16:23:33,172 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [437325421] [2022-11-20 16:23:33,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:23:33,173 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 16:23:33,173 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 [2022-11-20 16:23:33,174 INFO L229 MonitoredProcess]: Starting monitored process 159 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 16:23:33,176 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (159)] Waiting until timeout for monitored process [2022-11-20 16:23:34,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:23:34,887 INFO L263 TraceCheckSpWp]: Trace formula consists of 1084 conjuncts, 64 conjunts are in the unsatisfiable core [2022-11-20 16:23:34,890 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 16:23:35,322 INFO L134 CoverageAnalysis]: Checked inductivity of 4689 backedges. 0 proven. 4681 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-20 16:23:35,322 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 16:23:39,189 INFO L134 CoverageAnalysis]: Checked inductivity of 4689 backedges. 0 proven. 4681 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-20 16:23:39,190 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [437325421] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 16:23:39,190 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 16:23:39,190 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [65, 65, 65] total 130 [2022-11-20 16:23:39,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [662230365] [2022-11-20 16:23:39,191 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 16:23:39,191 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 130 states [2022-11-20 16:23:39,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:23:39,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 130 interpolants. [2022-11-20 16:23:39,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4290, Invalid=12480, Unknown=0, NotChecked=0, Total=16770 [2022-11-20 16:23:39,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:23:39,196 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:23:39,196 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 130 states, 130 states have (on average 5.653846153846154) internal successors, (735), 130 states have internal predecessors, (735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:23:39,196 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:23:39,196 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:23:39,196 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:23:39,196 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:23:39,196 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:23:39,196 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-11-20 16:23:39,196 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2022-11-20 16:23:39,197 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 93 states. [2022-11-20 16:23:39,197 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:23:52,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:23:52,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:23:52,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:23:52,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:23:52,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:23:52,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-20 16:23:52,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-11-20 16:23:52,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2022-11-20 16:23:52,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 108 states. [2022-11-20 16:23:52,438 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (159)] Ended with exit code 0 [2022-11-20 16:23:52,625 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable292,159 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 16:23:52,625 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:23:52,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:23:52,625 INFO L85 PathProgramCache]: Analyzing trace with hash 668515496, now seen corresponding path program 1 times [2022-11-20 16:23:52,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:23:52,625 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [368933666] [2022-11-20 16:23:52,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:23:52,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:23:52,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 16:23:52,715 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 16:23:52,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 16:23:52,854 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 16:23:52,854 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-20 16:23:52,854 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 7 remaining) [2022-11-20 16:23:52,854 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 7 remaining) [2022-11-20 16:23:52,854 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 7 remaining) [2022-11-20 16:23:52,854 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 7 remaining) [2022-11-20 16:23:52,855 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 7 remaining) [2022-11-20 16:23:52,855 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (1 of 7 remaining) [2022-11-20 16:23:52,855 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK (0 of 7 remaining) [2022-11-20 16:23:52,855 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable293 [2022-11-20 16:23:52,858 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 16:23:52,858 WARN L233 ceAbstractionStarter]: 35 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-20 16:23:52,859 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 36 thread instances. [2022-11-20 16:23:52,957 INFO L144 ThreadInstanceAdder]: Constructed 36 joinOtherThreadTransitions. [2022-11-20 16:23:52,966 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 16:23:52,966 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-11-20 16:23:52,966 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 [2022-11-20 16:23:52,968 INFO L229 MonitoredProcess]: Starting monitored process 160 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-11-20 16:23:52,973 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-11-20 16:23:52,974 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2022-11-20 16:23:52,974 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@46174585, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 16:23:52,974 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-11-20 16:23:52,987 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (160)] Waiting until timeout for monitored process [2022-11-20 16:23:53,003 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:23:53,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:23:53,003 INFO L85 PathProgramCache]: Analyzing trace with hash -434326546, now seen corresponding path program 1 times [2022-11-20 16:23:53,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:23:53,003 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [665179991] [2022-11-20 16:23:53,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:23:53,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:23:53,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:23:53,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:23:53,032 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:23:53,032 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [665179991] [2022-11-20 16:23:53,032 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [665179991] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 16:23:53,032 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 16:23:53,032 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 16:23:53,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [725547572] [2022-11-20 16:23:53,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 16:23:53,033 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-20 16:23:53,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:23:53,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-20 16:23:53,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-20 16:23:53,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:23:53,034 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:23:53,034 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:23:53,034 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:23:53,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:23:53,035 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable294 [2022-11-20 16:23:53,035 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:23:53,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:23:53,035 INFO L85 PathProgramCache]: Analyzing trace with hash -513463005, now seen corresponding path program 1 times [2022-11-20 16:23:53,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:23:53,035 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1679082588] [2022-11-20 16:23:53,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:23:53,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:23:53,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:23:53,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:23:53,075 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:23:53,076 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1679082588] [2022-11-20 16:23:53,076 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1679082588] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 16:23:53,076 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 16:23:53,076 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 16:23:53,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1345604807] [2022-11-20 16:23:53,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 16:23:53,076 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 16:23:53,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:23:53,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 16:23:53,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 16:23:53,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:23:53,077 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:23:53,077 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:23:53,077 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:23:53,077 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:23:53,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:23:53,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:23:53,628 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable295 [2022-11-20 16:23:53,628 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:23:53,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:23:53,629 INFO L85 PathProgramCache]: Analyzing trace with hash 1087406212, now seen corresponding path program 1 times [2022-11-20 16:23:53,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:23:53,629 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303931647] [2022-11-20 16:23:53,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:23:53,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:23:53,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:23:53,683 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:23:53,683 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:23:53,683 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [303931647] [2022-11-20 16:23:53,683 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [303931647] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 16:23:53,683 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2142432183] [2022-11-20 16:23:53,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:23:53,684 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 16:23:53,684 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 [2022-11-20 16:23:53,685 INFO L229 MonitoredProcess]: Starting monitored process 161 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 16:23:53,689 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (161)] Waiting until timeout for monitored process [2022-11-20 16:23:55,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:23:55,421 INFO L263 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 16:23:55,422 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 16:23:55,447 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:23:55,447 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 16:23:55,481 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:23:55,481 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2142432183] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 16:23:55,481 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 16:23:55,481 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-11-20 16:23:55,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2112456695] [2022-11-20 16:23:55,481 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 16:23:55,481 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-20 16:23:55,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:23:55,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-20 16:23:55,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-20 16:23:55,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:23:55,482 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:23:55,483 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.4) internal successors, (74), 10 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:23:55,483 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:23:55,483 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:23:55,483 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:23:55,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:23:55,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:23:55,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:23:55,874 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (161)] Ended with exit code 0 [2022-11-20 16:23:56,064 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable296,161 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 16:23:56,064 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:23:56,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:23:56,064 INFO L85 PathProgramCache]: Analyzing trace with hash 2055566115, now seen corresponding path program 1 times [2022-11-20 16:23:56,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:23:56,065 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1240079758] [2022-11-20 16:23:56,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:23:56,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:23:56,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:23:56,136 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-20 16:23:56,136 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:23:56,137 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1240079758] [2022-11-20 16:23:56,137 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1240079758] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 16:23:56,137 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 16:23:56,137 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 16:23:56,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873211318] [2022-11-20 16:23:56,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 16:23:56,137 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 16:23:56,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:23:56,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 16:23:56,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 16:23:56,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:23:56,138 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:23:56,138 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:23:56,138 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:23:56,138 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:23:56,138 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:23:56,139 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:23:56,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:23:56,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:23:56,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:23:56,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 16:23:56,487 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable297 [2022-11-20 16:23:56,487 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:23:56,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:23:56,487 INFO L85 PathProgramCache]: Analyzing trace with hash -1861455710, now seen corresponding path program 1 times [2022-11-20 16:23:56,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:23:56,487 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1260305841] [2022-11-20 16:23:56,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:23:56,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:23:56,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:23:56,536 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-20 16:23:56,537 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:23:56,537 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1260305841] [2022-11-20 16:23:56,537 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1260305841] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 16:23:56,537 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 16:23:56,537 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 16:23:56,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1823728783] [2022-11-20 16:23:56,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 16:23:56,537 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 16:23:56,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:23:56,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 16:23:56,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 16:23:56,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:23:56,538 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:23:56,539 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:23:56,539 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:23:56,539 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:23:56,539 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:23:56,539 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-11-20 16:23:56,539 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:23:57,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:23:57,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:23:57,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:23:57,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:23:57,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:23:57,249 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable298 [2022-11-20 16:23:57,250 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:23:57,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:23:57,250 INFO L85 PathProgramCache]: Analyzing trace with hash 1941787262, now seen corresponding path program 1 times [2022-11-20 16:23:57,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:23:57,250 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [112595241] [2022-11-20 16:23:57,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:23:57,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:23:57,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:23:57,338 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-20 16:23:57,338 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:23:57,338 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [112595241] [2022-11-20 16:23:57,339 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [112595241] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 16:23:57,339 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [85347327] [2022-11-20 16:23:57,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:23:57,339 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 16:23:57,339 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 [2022-11-20 16:23:57,340 INFO L229 MonitoredProcess]: Starting monitored process 162 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 16:23:57,343 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (162)] Waiting until timeout for monitored process [2022-11-20 16:23:59,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:23:59,030 INFO L263 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-20 16:23:59,031 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 16:23:59,116 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-20 16:23:59,116 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 16:23:59,242 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-20 16:23:59,242 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [85347327] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 16:23:59,243 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 16:23:59,243 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 9, 9] total 19 [2022-11-20 16:23:59,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [344301558] [2022-11-20 16:23:59,243 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 16:23:59,243 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-20 16:23:59,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:23:59,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-20 16:23:59,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=263, Unknown=0, NotChecked=0, Total=342 [2022-11-20 16:23:59,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:23:59,245 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:23:59,245 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 10.578947368421053) internal successors, (201), 19 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:23:59,245 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:23:59,245 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:23:59,245 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:23:59,245 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:23:59,245 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:23:59,246 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:24:00,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:24:00,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:24:00,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:24:00,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:24:00,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:24:00,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-20 16:24:00,290 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (162)] Ended with exit code 0 [2022-11-20 16:24:00,479 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 162 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable299 [2022-11-20 16:24:00,479 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:24:00,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:24:00,480 INFO L85 PathProgramCache]: Analyzing trace with hash -212678449, now seen corresponding path program 1 times [2022-11-20 16:24:00,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:24:00,480 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [308316127] [2022-11-20 16:24:00,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:24:00,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:24:00,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:24:00,754 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 217 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-20 16:24:00,754 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:24:00,754 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [308316127] [2022-11-20 16:24:00,754 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [308316127] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 16:24:00,754 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [924707091] [2022-11-20 16:24:00,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:24:00,755 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 16:24:00,755 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 [2022-11-20 16:24:00,756 INFO L229 MonitoredProcess]: Starting monitored process 163 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 16:24:00,758 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (163)] Waiting until timeout for monitored process [2022-11-20 16:24:02,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:24:02,520 INFO L263 TraceCheckSpWp]: Trace formula consists of 460 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-20 16:24:02,522 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 16:24:02,637 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 217 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-20 16:24:02,637 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 16:24:02,973 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 217 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-20 16:24:02,973 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [924707091] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 16:24:02,973 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 16:24:02,973 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 34 [2022-11-20 16:24:02,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2106197051] [2022-11-20 16:24:02,973 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 16:24:02,974 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-11-20 16:24:02,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:24:02,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-11-20 16:24:02,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2022-11-20 16:24:02,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:24:02,975 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:24:02,976 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 7.5) internal successors, (255), 34 states have internal predecessors, (255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:24:02,976 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:24:02,976 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:24:02,976 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:24:02,976 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:24:02,976 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:24:02,976 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-11-20 16:24:02,976 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:24:05,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:24:05,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:24:05,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:24:05,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:24:05,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:24:05,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-20 16:24:05,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-11-20 16:24:05,660 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (163)] Ended with exit code 0 [2022-11-20 16:24:05,847 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 163 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable300 [2022-11-20 16:24:05,847 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:24:05,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:24:05,847 INFO L85 PathProgramCache]: Analyzing trace with hash 1780538363, now seen corresponding path program 1 times [2022-11-20 16:24:05,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:24:05,848 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1883981702] [2022-11-20 16:24:05,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:24:05,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:24:05,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:24:06,748 INFO L134 CoverageAnalysis]: Checked inductivity of 1073 backedges. 0 proven. 1065 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-20 16:24:06,748 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:24:06,748 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1883981702] [2022-11-20 16:24:06,748 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1883981702] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 16:24:06,748 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1619058151] [2022-11-20 16:24:06,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:24:06,748 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 16:24:06,749 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 [2022-11-20 16:24:06,750 INFO L229 MonitoredProcess]: Starting monitored process 164 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 16:24:06,752 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (164)] Waiting until timeout for monitored process [2022-11-20 16:24:08,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:24:08,488 INFO L263 TraceCheckSpWp]: Trace formula consists of 668 conjuncts, 32 conjunts are in the unsatisfiable core [2022-11-20 16:24:08,490 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 16:24:08,708 INFO L134 CoverageAnalysis]: Checked inductivity of 1073 backedges. 0 proven. 1065 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-20 16:24:08,709 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 16:24:09,847 INFO L134 CoverageAnalysis]: Checked inductivity of 1073 backedges. 0 proven. 1065 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-20 16:24:09,848 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1619058151] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 16:24:09,848 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 16:24:09,848 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33, 33] total 66 [2022-11-20 16:24:09,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1204925518] [2022-11-20 16:24:09,849 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 16:24:09,849 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 66 states [2022-11-20 16:24:09,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:24:09,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2022-11-20 16:24:09,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1122, Invalid=3168, Unknown=0, NotChecked=0, Total=4290 [2022-11-20 16:24:09,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:24:09,851 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:24:09,851 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 66 states, 66 states have (on average 6.287878787878788) internal successors, (415), 66 states have internal predecessors, (415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:24:09,851 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:24:09,851 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:24:09,851 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:24:09,851 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:24:09,852 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:24:09,852 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-11-20 16:24:09,852 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2022-11-20 16:24:09,852 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:24:19,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:24:19,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:24:19,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:24:19,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:24:19,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:24:19,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-20 16:24:19,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-11-20 16:24:19,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2022-11-20 16:24:19,528 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (164)] Ended with exit code 0 [2022-11-20 16:24:19,716 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 164 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable301 [2022-11-20 16:24:19,716 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:24:19,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:24:19,717 INFO L85 PathProgramCache]: Analyzing trace with hash -1186401965, now seen corresponding path program 1 times [2022-11-20 16:24:19,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:24:19,717 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [65499982] [2022-11-20 16:24:19,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:24:19,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:24:19,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:24:22,714 INFO L134 CoverageAnalysis]: Checked inductivity of 4689 backedges. 0 proven. 4681 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-20 16:24:22,714 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:24:22,714 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [65499982] [2022-11-20 16:24:22,714 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [65499982] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 16:24:22,714 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [336597847] [2022-11-20 16:24:22,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:24:22,715 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 16:24:22,715 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 [2022-11-20 16:24:22,716 INFO L229 MonitoredProcess]: Starting monitored process 165 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 16:24:22,719 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (165)] Waiting until timeout for monitored process [2022-11-20 16:24:24,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:24:24,632 INFO L263 TraceCheckSpWp]: Trace formula consists of 1084 conjuncts, 64 conjunts are in the unsatisfiable core [2022-11-20 16:24:24,635 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 16:24:25,109 INFO L134 CoverageAnalysis]: Checked inductivity of 4689 backedges. 0 proven. 4681 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-20 16:24:25,110 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 16:24:29,067 INFO L134 CoverageAnalysis]: Checked inductivity of 4689 backedges. 0 proven. 4681 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-20 16:24:29,067 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [336597847] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 16:24:29,068 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 16:24:29,068 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [65, 65, 65] total 130 [2022-11-20 16:24:29,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1651918065] [2022-11-20 16:24:29,068 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 16:24:29,069 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 130 states [2022-11-20 16:24:29,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:24:29,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 130 interpolants. [2022-11-20 16:24:29,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4290, Invalid=12480, Unknown=0, NotChecked=0, Total=16770 [2022-11-20 16:24:29,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:24:29,074 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:24:29,075 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 130 states, 130 states have (on average 5.653846153846154) internal successors, (735), 130 states have internal predecessors, (735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:24:29,075 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:24:29,075 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:24:29,075 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:24:29,075 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:24:29,075 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:24:29,076 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-11-20 16:24:29,076 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2022-11-20 16:24:29,076 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 93 states. [2022-11-20 16:24:29,076 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:24:42,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:24:42,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:24:42,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:24:42,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:24:42,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:24:42,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-20 16:24:42,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-11-20 16:24:42,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2022-11-20 16:24:42,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 111 states. [2022-11-20 16:24:42,251 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (165)] Forceful destruction successful, exit code 0 [2022-11-20 16:24:42,440 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable302,165 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 16:24:42,440 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:24:42,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:24:42,440 INFO L85 PathProgramCache]: Analyzing trace with hash -308960194, now seen corresponding path program 1 times [2022-11-20 16:24:42,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:24:42,440 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1281391714] [2022-11-20 16:24:42,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:24:42,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:24:42,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 16:24:42,529 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 16:24:42,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 16:24:42,672 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 16:24:42,672 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-20 16:24:42,672 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 7 remaining) [2022-11-20 16:24:42,672 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 7 remaining) [2022-11-20 16:24:42,672 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 7 remaining) [2022-11-20 16:24:42,672 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 7 remaining) [2022-11-20 16:24:42,673 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 7 remaining) [2022-11-20 16:24:42,673 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (1 of 7 remaining) [2022-11-20 16:24:42,673 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK (0 of 7 remaining) [2022-11-20 16:24:42,673 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable303 [2022-11-20 16:24:42,677 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 16:24:42,677 WARN L233 ceAbstractionStarter]: 36 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-20 16:24:42,677 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 37 thread instances. [2022-11-20 16:24:42,796 INFO L144 ThreadInstanceAdder]: Constructed 37 joinOtherThreadTransitions. [2022-11-20 16:24:42,805 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 16:24:42,805 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-11-20 16:24:42,805 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 [2022-11-20 16:24:42,806 INFO L229 MonitoredProcess]: Starting monitored process 166 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-11-20 16:24:42,807 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (166)] Waiting until timeout for monitored process [2022-11-20 16:24:42,811 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-11-20 16:24:42,812 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2022-11-20 16:24:42,812 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@46174585, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 16:24:42,812 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-11-20 16:24:42,838 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:24:42,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:24:42,838 INFO L85 PathProgramCache]: Analyzing trace with hash 1469406702, now seen corresponding path program 1 times [2022-11-20 16:24:42,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:24:42,838 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1590243200] [2022-11-20 16:24:42,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:24:42,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:24:42,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:24:42,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:24:42,870 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:24:42,870 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1590243200] [2022-11-20 16:24:42,870 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1590243200] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 16:24:42,871 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 16:24:42,871 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 16:24:42,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [409209271] [2022-11-20 16:24:42,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 16:24:42,871 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-20 16:24:42,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:24:42,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-20 16:24:42,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-20 16:24:42,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:24:42,873 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:24:42,873 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:24:42,873 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:24:42,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:24:42,875 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable304 [2022-11-20 16:24:42,875 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:24:42,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:24:42,876 INFO L85 PathProgramCache]: Analyzing trace with hash -681799773, now seen corresponding path program 1 times [2022-11-20 16:24:42,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:24:42,876 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1362696400] [2022-11-20 16:24:42,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:24:42,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:24:42,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:24:42,929 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:24:42,930 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:24:42,930 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1362696400] [2022-11-20 16:24:42,930 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1362696400] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 16:24:42,930 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 16:24:42,931 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 16:24:42,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1545647618] [2022-11-20 16:24:42,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 16:24:42,931 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 16:24:42,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:24:42,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 16:24:42,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 16:24:42,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:24:42,933 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:24:42,933 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:24:42,933 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:24:42,933 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:24:43,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:24:43,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:24:43,511 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable305 [2022-11-20 16:24:43,511 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:24:43,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:24:43,511 INFO L85 PathProgramCache]: Analyzing trace with hash -1176479512, now seen corresponding path program 1 times [2022-11-20 16:24:43,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:24:43,511 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [574108969] [2022-11-20 16:24:43,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:24:43,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:24:43,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:24:43,567 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:24:43,567 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:24:43,567 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [574108969] [2022-11-20 16:24:43,567 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [574108969] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 16:24:43,567 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [423402323] [2022-11-20 16:24:43,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:24:43,567 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 16:24:43,568 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 [2022-11-20 16:24:43,569 INFO L229 MonitoredProcess]: Starting monitored process 167 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 16:24:43,571 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (167)] Waiting until timeout for monitored process [2022-11-20 16:24:45,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:24:45,312 INFO L263 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 16:24:45,312 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 16:24:45,335 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:24:45,335 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 16:24:45,366 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:24:45,367 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [423402323] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 16:24:45,367 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 16:24:45,367 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-11-20 16:24:45,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924962961] [2022-11-20 16:24:45,367 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 16:24:45,367 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-20 16:24:45,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:24:45,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-20 16:24:45,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-20 16:24:45,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:24:45,371 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:24:45,371 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.4) internal successors, (74), 10 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:24:45,372 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:24:45,372 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:24:45,372 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:24:45,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:24:45,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:24:45,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:24:45,766 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (167)] Forceful destruction successful, exit code 0 [2022-11-20 16:24:45,953 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable306,167 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 16:24:45,953 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:24:45,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:24:45,953 INFO L85 PathProgramCache]: Analyzing trace with hash -1047179185, now seen corresponding path program 1 times [2022-11-20 16:24:45,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:24:45,954 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [257221570] [2022-11-20 16:24:45,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:24:45,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:24:45,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:24:46,033 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-20 16:24:46,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:24:46,033 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [257221570] [2022-11-20 16:24:46,033 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [257221570] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 16:24:46,033 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 16:24:46,033 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 16:24:46,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934786008] [2022-11-20 16:24:46,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 16:24:46,034 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 16:24:46,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:24:46,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 16:24:46,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 16:24:46,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:24:46,035 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:24:46,035 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:24:46,035 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:24:46,035 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:24:46,035 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:24:46,035 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:24:46,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:24:46,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:24:46,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:24:46,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 16:24:46,479 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable307 [2022-11-20 16:24:46,479 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:24:46,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:24:46,480 INFO L85 PathProgramCache]: Analyzing trace with hash 1577897146, now seen corresponding path program 1 times [2022-11-20 16:24:46,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:24:46,480 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [392990010] [2022-11-20 16:24:46,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:24:46,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:24:46,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:24:46,536 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-20 16:24:46,536 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:24:46,536 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [392990010] [2022-11-20 16:24:46,536 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [392990010] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 16:24:46,536 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 16:24:46,536 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 16:24:46,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226176837] [2022-11-20 16:24:46,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 16:24:46,537 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 16:24:46,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:24:46,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 16:24:46,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 16:24:46,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:24:46,538 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:24:46,538 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:24:46,538 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:24:46,538 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:24:46,538 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:24:46,538 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-11-20 16:24:46,538 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:24:47,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:24:47,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:24:47,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:24:47,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:24:47,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:24:47,089 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable308 [2022-11-20 16:24:47,089 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:24:47,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:24:47,089 INFO L85 PathProgramCache]: Analyzing trace with hash -1928766035, now seen corresponding path program 1 times [2022-11-20 16:24:47,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:24:47,090 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [979579702] [2022-11-20 16:24:47,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:24:47,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:24:47,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:24:47,168 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-20 16:24:47,168 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:24:47,168 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [979579702] [2022-11-20 16:24:47,168 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [979579702] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 16:24:47,168 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1654766483] [2022-11-20 16:24:47,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:24:47,169 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 16:24:47,169 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 [2022-11-20 16:24:47,170 INFO L229 MonitoredProcess]: Starting monitored process 168 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 16:24:47,172 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (168)] Waiting until timeout for monitored process [2022-11-20 16:24:48,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:24:48,963 INFO L263 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-20 16:24:48,964 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 16:24:49,052 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-20 16:24:49,052 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 16:24:49,173 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-20 16:24:49,173 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1654766483] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 16:24:49,173 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 16:24:49,173 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 9, 9] total 19 [2022-11-20 16:24:49,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [868675456] [2022-11-20 16:24:49,173 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 16:24:49,174 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-20 16:24:49,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:24:49,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-20 16:24:49,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=263, Unknown=0, NotChecked=0, Total=342 [2022-11-20 16:24:49,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:24:49,175 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:24:49,175 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 10.578947368421053) internal successors, (201), 19 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:24:49,175 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:24:49,175 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:24:49,175 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:24:49,175 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:24:49,175 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:24:49,175 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:24:50,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:24:50,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:24:50,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:24:50,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:24:50,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:24:50,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-20 16:24:50,221 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (168)] Forceful destruction successful, exit code 0 [2022-11-20 16:24:50,408 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 168 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable309 [2022-11-20 16:24:50,409 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:24:50,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:24:50,409 INFO L85 PathProgramCache]: Analyzing trace with hash 21774135, now seen corresponding path program 1 times [2022-11-20 16:24:50,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:24:50,409 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [168782551] [2022-11-20 16:24:50,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:24:50,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:24:50,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:24:50,701 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 217 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-20 16:24:50,702 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:24:50,702 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [168782551] [2022-11-20 16:24:50,702 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [168782551] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 16:24:50,702 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1482724383] [2022-11-20 16:24:50,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:24:50,702 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 16:24:50,702 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 [2022-11-20 16:24:50,705 INFO L229 MonitoredProcess]: Starting monitored process 169 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 16:24:50,706 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (169)] Waiting until timeout for monitored process [2022-11-20 16:24:52,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:24:52,568 INFO L263 TraceCheckSpWp]: Trace formula consists of 460 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-20 16:24:52,569 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 16:24:52,696 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 217 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-20 16:24:52,696 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 16:24:53,032 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 217 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-20 16:24:53,032 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1482724383] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 16:24:53,032 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 16:24:53,033 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 34 [2022-11-20 16:24:53,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [970263627] [2022-11-20 16:24:53,033 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 16:24:53,033 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-11-20 16:24:53,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:24:53,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-11-20 16:24:53,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2022-11-20 16:24:53,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:24:53,035 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:24:53,035 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 7.5) internal successors, (255), 34 states have internal predecessors, (255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:24:53,035 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:24:53,035 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:24:53,035 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:24:53,035 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:24:53,035 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:24:53,035 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-11-20 16:24:53,035 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:24:55,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:24:55,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:24:55,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:24:55,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:24:55,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:24:55,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-20 16:24:55,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-11-20 16:24:55,508 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (169)] Ended with exit code 0 [2022-11-20 16:24:55,697 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 169 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable310 [2022-11-20 16:24:55,697 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:24:55,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:24:55,698 INFO L85 PathProgramCache]: Analyzing trace with hash 896393155, now seen corresponding path program 1 times [2022-11-20 16:24:55,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:24:55,698 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1899595108] [2022-11-20 16:24:55,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:24:55,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:24:55,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:24:56,746 INFO L134 CoverageAnalysis]: Checked inductivity of 1073 backedges. 0 proven. 1065 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-20 16:24:56,746 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:24:56,746 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1899595108] [2022-11-20 16:24:56,746 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1899595108] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 16:24:56,746 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1419951569] [2022-11-20 16:24:56,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:24:56,747 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 16:24:56,747 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 [2022-11-20 16:24:56,748 INFO L229 MonitoredProcess]: Starting monitored process 170 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 16:24:56,750 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (170)] Waiting until timeout for monitored process [2022-11-20 16:24:58,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:24:58,616 INFO L263 TraceCheckSpWp]: Trace formula consists of 668 conjuncts, 32 conjunts are in the unsatisfiable core [2022-11-20 16:24:58,618 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 16:24:58,864 INFO L134 CoverageAnalysis]: Checked inductivity of 1073 backedges. 0 proven. 1065 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-20 16:24:58,864 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 16:24:59,983 INFO L134 CoverageAnalysis]: Checked inductivity of 1073 backedges. 0 proven. 1065 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-20 16:24:59,983 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1419951569] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 16:24:59,983 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 16:24:59,983 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33, 33] total 66 [2022-11-20 16:24:59,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [273026728] [2022-11-20 16:24:59,984 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 16:24:59,984 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 66 states [2022-11-20 16:24:59,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:24:59,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2022-11-20 16:24:59,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1122, Invalid=3168, Unknown=0, NotChecked=0, Total=4290 [2022-11-20 16:24:59,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:24:59,986 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:24:59,987 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 66 states, 66 states have (on average 6.287878787878788) internal successors, (415), 66 states have internal predecessors, (415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:24:59,987 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:24:59,987 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:24:59,987 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:24:59,987 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:24:59,987 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:24:59,988 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-11-20 16:24:59,988 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2022-11-20 16:24:59,988 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:25:11,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:25:11,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:25:11,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:25:11,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:25:11,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:25:11,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-20 16:25:11,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-11-20 16:25:11,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2022-11-20 16:25:11,302 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (170)] Ended with exit code 0 [2022-11-20 16:25:11,490 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 170 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable311 [2022-11-20 16:25:11,491 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:25:11,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:25:11,491 INFO L85 PathProgramCache]: Analyzing trace with hash -1351207205, now seen corresponding path program 1 times [2022-11-20 16:25:11,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:25:11,491 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [316253808] [2022-11-20 16:25:11,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:25:11,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:25:11,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:25:14,812 INFO L134 CoverageAnalysis]: Checked inductivity of 4689 backedges. 0 proven. 4681 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-20 16:25:14,812 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:25:14,812 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [316253808] [2022-11-20 16:25:14,813 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [316253808] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 16:25:14,813 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1722544318] [2022-11-20 16:25:14,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:25:14,813 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 16:25:14,813 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 [2022-11-20 16:25:14,814 INFO L229 MonitoredProcess]: Starting monitored process 171 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 16:25:14,816 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (171)] Waiting until timeout for monitored process [2022-11-20 16:25:16,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:25:16,969 INFO L263 TraceCheckSpWp]: Trace formula consists of 1084 conjuncts, 64 conjunts are in the unsatisfiable core [2022-11-20 16:25:16,974 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 16:25:17,436 INFO L134 CoverageAnalysis]: Checked inductivity of 4689 backedges. 0 proven. 4681 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-20 16:25:17,436 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 16:25:21,563 INFO L134 CoverageAnalysis]: Checked inductivity of 4689 backedges. 0 proven. 4681 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-20 16:25:21,563 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1722544318] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 16:25:21,563 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 16:25:21,564 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [65, 65, 65] total 130 [2022-11-20 16:25:21,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [528881734] [2022-11-20 16:25:21,564 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 16:25:21,564 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 130 states [2022-11-20 16:25:21,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:25:21,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 130 interpolants. [2022-11-20 16:25:21,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4290, Invalid=12480, Unknown=0, NotChecked=0, Total=16770 [2022-11-20 16:25:21,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:25:21,568 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:25:21,568 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 130 states, 130 states have (on average 5.653846153846154) internal successors, (735), 130 states have internal predecessors, (735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:25:21,568 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:25:21,568 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:25:21,568 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:25:21,568 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:25:21,568 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:25:21,569 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-11-20 16:25:21,569 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2022-11-20 16:25:21,569 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 93 states. [2022-11-20 16:25:21,569 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:25:37,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:25:37,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:25:37,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:25:37,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:25:37,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:25:37,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-20 16:25:37,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-11-20 16:25:37,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2022-11-20 16:25:37,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 114 states. [2022-11-20 16:25:37,117 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (171)] Forceful destruction successful, exit code 0 [2022-11-20 16:25:37,316 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 171 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable312 [2022-11-20 16:25:37,316 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:25:37,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:25:37,316 INFO L85 PathProgramCache]: Analyzing trace with hash 1477262477, now seen corresponding path program 1 times [2022-11-20 16:25:37,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:25:37,316 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1370101877] [2022-11-20 16:25:37,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:25:37,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:25:37,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 16:25:37,569 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 16:25:37,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 16:25:37,712 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 16:25:37,712 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-20 16:25:37,712 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 7 remaining) [2022-11-20 16:25:37,712 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 7 remaining) [2022-11-20 16:25:37,713 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 7 remaining) [2022-11-20 16:25:37,713 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 7 remaining) [2022-11-20 16:25:37,713 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 7 remaining) [2022-11-20 16:25:37,713 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (1 of 7 remaining) [2022-11-20 16:25:37,713 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK (0 of 7 remaining) [2022-11-20 16:25:37,713 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable313 [2022-11-20 16:25:37,717 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 16:25:37,718 WARN L233 ceAbstractionStarter]: 37 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-20 16:25:37,718 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 38 thread instances. [2022-11-20 16:25:37,816 INFO L144 ThreadInstanceAdder]: Constructed 38 joinOtherThreadTransitions. [2022-11-20 16:25:37,820 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 16:25:37,821 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-11-20 16:25:37,821 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 [2022-11-20 16:25:37,822 INFO L229 MonitoredProcess]: Starting monitored process 172 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-11-20 16:25:37,823 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (172)] Waiting until timeout for monitored process [2022-11-20 16:25:37,827 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-11-20 16:25:37,827 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2022-11-20 16:25:37,827 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@46174585, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 16:25:37,827 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-11-20 16:25:37,851 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:25:37,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:25:37,852 INFO L85 PathProgramCache]: Analyzing trace with hash 961718254, now seen corresponding path program 1 times [2022-11-20 16:25:37,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:25:37,852 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1189005761] [2022-11-20 16:25:37,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:25:37,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:25:37,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:25:37,884 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:25:37,884 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:25:37,884 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1189005761] [2022-11-20 16:25:37,884 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1189005761] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 16:25:37,884 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 16:25:37,884 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 16:25:37,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [370448452] [2022-11-20 16:25:37,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 16:25:37,885 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-20 16:25:37,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:25:37,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-20 16:25:37,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-20 16:25:37,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:25:37,886 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:25:37,886 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:25:37,886 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:25:37,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:25:37,887 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable314 [2022-11-20 16:25:37,887 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:25:37,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:25:37,887 INFO L85 PathProgramCache]: Analyzing trace with hash 1055955491, now seen corresponding path program 1 times [2022-11-20 16:25:37,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:25:37,887 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1080815254] [2022-11-20 16:25:37,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:25:37,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:25:37,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:25:37,928 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:25:37,928 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:25:37,928 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1080815254] [2022-11-20 16:25:37,928 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1080815254] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 16:25:37,928 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 16:25:37,928 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 16:25:37,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1668341884] [2022-11-20 16:25:37,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 16:25:37,929 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 16:25:37,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:25:37,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 16:25:37,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 16:25:37,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:25:37,930 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:25:37,930 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:25:37,930 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:25:37,930 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:25:38,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:25:38,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:25:38,528 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable315 [2022-11-20 16:25:38,528 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:25:38,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:25:38,529 INFO L85 PathProgramCache]: Analyzing trace with hash 755433804, now seen corresponding path program 1 times [2022-11-20 16:25:38,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:25:38,529 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [904046360] [2022-11-20 16:25:38,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:25:38,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:25:38,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:25:38,588 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:25:38,589 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:25:38,589 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [904046360] [2022-11-20 16:25:38,589 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [904046360] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 16:25:38,589 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [291940243] [2022-11-20 16:25:38,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:25:38,589 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 16:25:38,589 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 [2022-11-20 16:25:38,591 INFO L229 MonitoredProcess]: Starting monitored process 173 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 16:25:38,593 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (173)] Waiting until timeout for monitored process [2022-11-20 16:25:40,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:25:40,582 INFO L263 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 16:25:40,582 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 16:25:40,608 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:25:40,608 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 16:25:40,644 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:25:40,644 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [291940243] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 16:25:40,644 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 16:25:40,645 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-11-20 16:25:40,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1155501959] [2022-11-20 16:25:40,645 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 16:25:40,645 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-20 16:25:40,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:25:40,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-20 16:25:40,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-20 16:25:40,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:25:40,646 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:25:40,646 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.4) internal successors, (74), 10 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:25:40,646 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:25:40,647 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:25:40,647 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:25:41,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:25:41,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:25:41,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:25:41,065 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (173)] Forceful destruction successful, exit code 0 [2022-11-20 16:25:41,259 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable316,173 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 16:25:41,259 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:25:41,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:25:41,259 INFO L85 PathProgramCache]: Analyzing trace with hash -461746821, now seen corresponding path program 1 times [2022-11-20 16:25:41,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:25:41,259 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [432786163] [2022-11-20 16:25:41,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:25:41,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:25:41,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:25:41,364 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-20 16:25:41,364 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:25:41,364 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [432786163] [2022-11-20 16:25:41,364 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [432786163] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 16:25:41,364 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 16:25:41,365 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 16:25:41,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [584042773] [2022-11-20 16:25:41,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 16:25:41,365 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 16:25:41,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:25:41,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 16:25:41,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 16:25:41,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:25:41,366 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:25:41,366 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:25:41,366 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:25:41,366 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:25:41,366 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:25:41,367 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:25:41,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:25:41,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:25:41,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:25:41,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 16:25:41,725 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable317 [2022-11-20 16:25:41,725 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:25:41,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:25:41,725 INFO L85 PathProgramCache]: Analyzing trace with hash -1328813806, now seen corresponding path program 1 times [2022-11-20 16:25:41,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:25:41,725 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [296736428] [2022-11-20 16:25:41,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:25:41,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:25:41,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:25:41,775 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-20 16:25:41,776 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:25:41,776 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [296736428] [2022-11-20 16:25:41,776 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [296736428] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 16:25:41,776 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 16:25:41,776 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 16:25:41,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1336436989] [2022-11-20 16:25:41,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 16:25:41,776 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 16:25:41,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:25:41,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 16:25:41,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 16:25:41,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:25:41,778 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:25:41,778 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:25:41,778 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:25:41,778 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:25:41,778 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:25:41,778 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-11-20 16:25:41,778 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:25:42,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:25:42,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:25:42,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:25:42,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:25:42,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:25:42,379 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable318 [2022-11-20 16:25:42,379 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:25:42,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:25:42,379 INFO L85 PathProgramCache]: Analyzing trace with hash -1107995684, now seen corresponding path program 1 times [2022-11-20 16:25:42,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:25:42,380 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1739946053] [2022-11-20 16:25:42,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:25:42,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:25:42,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:25:42,458 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-20 16:25:42,458 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:25:42,458 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1739946053] [2022-11-20 16:25:42,459 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1739946053] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 16:25:42,459 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [650245843] [2022-11-20 16:25:42,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:25:42,459 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 16:25:42,459 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 [2022-11-20 16:25:42,460 INFO L229 MonitoredProcess]: Starting monitored process 174 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 16:25:42,462 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (174)] Waiting until timeout for monitored process [2022-11-20 16:25:44,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:25:44,409 INFO L263 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-20 16:25:44,411 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 16:25:44,499 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-20 16:25:44,499 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 16:25:44,614 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-20 16:25:44,615 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [650245843] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 16:25:44,615 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 16:25:44,615 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 9, 9] total 19 [2022-11-20 16:25:44,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [543931827] [2022-11-20 16:25:44,615 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 16:25:44,615 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-20 16:25:44,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:25:44,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-20 16:25:44,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=263, Unknown=0, NotChecked=0, Total=342 [2022-11-20 16:25:44,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:25:44,617 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:25:44,617 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 10.578947368421053) internal successors, (201), 19 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:25:44,617 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:25:44,617 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:25:44,617 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:25:44,617 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:25:44,617 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:25:44,618 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:25:46,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:25:46,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:25:46,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:25:46,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:25:46,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:25:46,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-20 16:25:46,018 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (174)] Forceful destruction successful, exit code 0 [2022-11-20 16:25:46,206 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable319,174 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 16:25:46,206 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:25:46,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:25:46,207 INFO L85 PathProgramCache]: Analyzing trace with hash 152384479, now seen corresponding path program 1 times [2022-11-20 16:25:46,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:25:46,207 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [549172598] [2022-11-20 16:25:46,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:25:46,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:25:46,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:25:46,492 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 217 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-20 16:25:46,492 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:25:46,492 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [549172598] [2022-11-20 16:25:46,492 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [549172598] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 16:25:46,492 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [339682131] [2022-11-20 16:25:46,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:25:46,493 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 16:25:46,493 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 [2022-11-20 16:25:46,494 INFO L229 MonitoredProcess]: Starting monitored process 175 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 16:25:46,496 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (175)] Waiting until timeout for monitored process [2022-11-20 16:25:48,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:25:48,318 INFO L263 TraceCheckSpWp]: Trace formula consists of 460 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-20 16:25:48,319 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 16:25:48,423 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 217 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-20 16:25:48,424 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 16:25:48,723 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 217 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-20 16:25:48,723 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [339682131] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 16:25:48,723 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 16:25:48,723 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 34 [2022-11-20 16:25:48,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1427319896] [2022-11-20 16:25:48,724 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 16:25:48,724 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-11-20 16:25:48,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:25:48,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-11-20 16:25:48,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2022-11-20 16:25:48,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:25:48,725 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:25:48,725 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 7.5) internal successors, (255), 34 states have internal predecessors, (255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:25:48,725 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:25:48,725 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:25:48,725 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:25:48,725 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:25:48,725 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:25:48,725 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-11-20 16:25:48,725 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:25:51,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:25:51,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:25:51,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:25:51,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:25:51,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:25:51,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-20 16:25:51,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-11-20 16:25:51,458 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (175)] Forceful destruction successful, exit code 0 [2022-11-20 16:25:51,647 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 175 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable320 [2022-11-20 16:25:51,648 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:25:51,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:25:51,648 INFO L85 PathProgramCache]: Analyzing trace with hash 925280459, now seen corresponding path program 1 times [2022-11-20 16:25:51,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:25:51,648 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2068943285] [2022-11-20 16:25:51,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:25:51,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:25:51,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:25:52,373 INFO L134 CoverageAnalysis]: Checked inductivity of 1073 backedges. 0 proven. 1065 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-20 16:25:52,373 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:25:52,373 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2068943285] [2022-11-20 16:25:52,374 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2068943285] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 16:25:52,374 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1685396473] [2022-11-20 16:25:52,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:25:52,374 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 16:25:52,374 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 [2022-11-20 16:25:52,375 INFO L229 MonitoredProcess]: Starting monitored process 176 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 16:25:52,377 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (176)] Waiting until timeout for monitored process [2022-11-20 16:25:54,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:25:54,231 INFO L263 TraceCheckSpWp]: Trace formula consists of 668 conjuncts, 32 conjunts are in the unsatisfiable core [2022-11-20 16:25:54,233 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 16:25:54,557 INFO L134 CoverageAnalysis]: Checked inductivity of 1073 backedges. 0 proven. 1065 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-20 16:25:54,557 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 16:25:55,575 INFO L134 CoverageAnalysis]: Checked inductivity of 1073 backedges. 0 proven. 1065 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-20 16:25:55,575 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1685396473] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 16:25:55,575 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 16:25:55,575 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33, 33] total 66 [2022-11-20 16:25:55,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [771633881] [2022-11-20 16:25:55,576 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 16:25:55,576 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 66 states [2022-11-20 16:25:55,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:25:55,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2022-11-20 16:25:55,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1122, Invalid=3168, Unknown=0, NotChecked=0, Total=4290 [2022-11-20 16:25:55,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:25:55,577 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:25:55,578 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 66 states, 66 states have (on average 6.287878787878788) internal successors, (415), 66 states have internal predecessors, (415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:25:55,578 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:25:55,578 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:25:55,578 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:25:55,578 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:25:55,578 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:25:55,578 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-11-20 16:25:55,578 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2022-11-20 16:25:55,578 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:26:05,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:26:05,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:26:05,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:26:05,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:26:05,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:26:05,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-20 16:26:05,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-11-20 16:26:05,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2022-11-20 16:26:05,296 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (176)] Ended with exit code 0 [2022-11-20 16:26:05,487 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 176 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable321 [2022-11-20 16:26:05,487 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:26:05,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:26:05,487 INFO L85 PathProgramCache]: Analyzing trace with hash 44876195, now seen corresponding path program 1 times [2022-11-20 16:26:05,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:26:05,487 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [275536131] [2022-11-20 16:26:05,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:26:05,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:26:05,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:26:08,383 INFO L134 CoverageAnalysis]: Checked inductivity of 4689 backedges. 0 proven. 4681 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-20 16:26:08,383 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:26:08,383 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [275536131] [2022-11-20 16:26:08,383 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [275536131] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 16:26:08,383 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1013469756] [2022-11-20 16:26:08,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:26:08,384 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 16:26:08,384 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 [2022-11-20 16:26:08,385 INFO L229 MonitoredProcess]: Starting monitored process 177 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 16:26:08,387 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (177)] Waiting until timeout for monitored process [2022-11-20 16:26:10,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:26:10,327 INFO L263 TraceCheckSpWp]: Trace formula consists of 1084 conjuncts, 64 conjunts are in the unsatisfiable core [2022-11-20 16:26:10,330 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 16:26:10,738 INFO L134 CoverageAnalysis]: Checked inductivity of 4689 backedges. 0 proven. 4681 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-20 16:26:10,738 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 16:26:14,411 INFO L134 CoverageAnalysis]: Checked inductivity of 4689 backedges. 0 proven. 4681 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-20 16:26:14,412 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1013469756] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 16:26:14,412 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 16:26:14,412 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [65, 65, 65] total 130 [2022-11-20 16:26:14,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85271542] [2022-11-20 16:26:14,412 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 16:26:14,413 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 130 states [2022-11-20 16:26:14,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:26:14,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 130 interpolants. [2022-11-20 16:26:14,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4290, Invalid=12480, Unknown=0, NotChecked=0, Total=16770 [2022-11-20 16:26:14,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:26:14,417 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:26:14,418 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 130 states, 130 states have (on average 5.653846153846154) internal successors, (735), 130 states have internal predecessors, (735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:26:14,418 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:26:14,418 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:26:14,418 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:26:14,418 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:26:14,418 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:26:14,418 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-11-20 16:26:14,418 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2022-11-20 16:26:14,418 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 93 states. [2022-11-20 16:26:14,418 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:26:28,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:26:28,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:26:28,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:26:28,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:26:28,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:26:28,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-20 16:26:28,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-11-20 16:26:28,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2022-11-20 16:26:28,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 117 states. [2022-11-20 16:26:28,466 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (177)] Forceful destruction successful, exit code 0 [2022-11-20 16:26:28,654 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 177 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable322 [2022-11-20 16:26:28,655 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:26:28,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:26:28,655 INFO L85 PathProgramCache]: Analyzing trace with hash 553514837, now seen corresponding path program 1 times [2022-11-20 16:26:28,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:26:28,655 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1142970273] [2022-11-20 16:26:28,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:26:28,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:26:28,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 16:26:28,741 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 16:26:28,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 16:26:28,896 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 16:26:28,896 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-20 16:26:28,896 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 7 remaining) [2022-11-20 16:26:28,897 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 7 remaining) [2022-11-20 16:26:28,897 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 7 remaining) [2022-11-20 16:26:28,897 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 7 remaining) [2022-11-20 16:26:28,897 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 7 remaining) [2022-11-20 16:26:28,897 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (1 of 7 remaining) [2022-11-20 16:26:28,897 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK (0 of 7 remaining) [2022-11-20 16:26:28,897 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable323 [2022-11-20 16:26:28,900 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 16:26:28,901 WARN L233 ceAbstractionStarter]: 38 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-20 16:26:28,901 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 39 thread instances. [2022-11-20 16:26:28,993 INFO L144 ThreadInstanceAdder]: Constructed 39 joinOtherThreadTransitions. [2022-11-20 16:26:28,998 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 16:26:28,998 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-11-20 16:26:28,999 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 [2022-11-20 16:26:29,000 INFO L229 MonitoredProcess]: Starting monitored process 178 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-11-20 16:26:29,002 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (178)] Waiting until timeout for monitored process [2022-11-20 16:26:29,004 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-11-20 16:26:29,005 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2022-11-20 16:26:29,005 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@46174585, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 16:26:29,005 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-11-20 16:26:29,060 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:26:29,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:26:29,061 INFO L85 PathProgramCache]: Analyzing trace with hash -1957391890, now seen corresponding path program 1 times [2022-11-20 16:26:29,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:26:29,061 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [9192526] [2022-11-20 16:26:29,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:26:29,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:26:29,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:26:29,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:26:29,093 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:26:29,093 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [9192526] [2022-11-20 16:26:29,093 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [9192526] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 16:26:29,093 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 16:26:29,093 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 16:26:29,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [477384826] [2022-11-20 16:26:29,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 16:26:29,093 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-20 16:26:29,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:26:29,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-20 16:26:29,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-20 16:26:29,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:26:29,094 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:26:29,094 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:26:29,094 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:26:29,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:26:29,095 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable324 [2022-11-20 16:26:29,095 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:26:29,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:26:29,096 INFO L85 PathProgramCache]: Analyzing trace with hash 404835491, now seen corresponding path program 1 times [2022-11-20 16:26:29,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:26:29,096 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1642488780] [2022-11-20 16:26:29,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:26:29,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:26:29,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:26:29,212 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:26:29,212 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:26:29,212 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1642488780] [2022-11-20 16:26:29,212 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1642488780] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 16:26:29,212 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 16:26:29,212 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 16:26:29,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2082869532] [2022-11-20 16:26:29,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 16:26:29,213 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 16:26:29,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:26:29,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 16:26:29,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 16:26:29,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:26:29,214 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:26:29,214 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:26:29,214 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:26:29,214 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:26:29,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:26:29,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:26:29,750 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable325 [2022-11-20 16:26:29,750 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:26:29,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:26:29,750 INFO L85 PathProgramCache]: Analyzing trace with hash -1706788432, now seen corresponding path program 1 times [2022-11-20 16:26:29,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:26:29,750 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [57290256] [2022-11-20 16:26:29,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:26:29,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:26:29,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:26:29,804 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:26:29,804 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:26:29,804 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [57290256] [2022-11-20 16:26:29,804 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [57290256] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 16:26:29,804 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1851483195] [2022-11-20 16:26:29,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:26:29,805 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 16:26:29,805 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 [2022-11-20 16:26:29,807 INFO L229 MonitoredProcess]: Starting monitored process 179 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 16:26:29,808 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (179)] Waiting until timeout for monitored process [2022-11-20 16:26:31,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:26:31,625 INFO L263 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 16:26:31,626 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 16:26:31,647 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:26:31,647 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 16:26:31,676 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:26:31,676 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1851483195] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 16:26:31,676 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 16:26:31,677 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-11-20 16:26:31,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120361532] [2022-11-20 16:26:31,677 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 16:26:31,677 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-20 16:26:31,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:26:31,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-20 16:26:31,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-20 16:26:31,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:26:31,678 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:26:31,678 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.4) internal successors, (74), 10 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:26:31,678 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:26:31,678 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:26:31,678 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:26:32,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:26:32,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:26:32,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:26:32,061 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (179)] Forceful destruction successful, exit code 0 [2022-11-20 16:26:32,249 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable326,179 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 16:26:32,249 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:26:32,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:26:32,249 INFO L85 PathProgramCache]: Analyzing trace with hash -483104089, now seen corresponding path program 1 times [2022-11-20 16:26:32,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:26:32,250 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1464750523] [2022-11-20 16:26:32,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:26:32,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:26:32,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:26:32,322 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-20 16:26:32,322 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:26:32,322 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1464750523] [2022-11-20 16:26:32,323 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1464750523] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 16:26:32,323 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 16:26:32,323 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 16:26:32,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1897300904] [2022-11-20 16:26:32,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 16:26:32,323 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 16:26:32,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:26:32,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 16:26:32,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 16:26:32,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:26:32,324 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:26:32,324 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:26:32,324 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:26:32,324 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:26:32,324 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:26:32,324 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:26:32,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:26:32,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:26:32,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:26:32,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 16:26:32,730 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable327 [2022-11-20 16:26:32,730 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:26:32,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:26:32,730 INFO L85 PathProgramCache]: Analyzing trace with hash -1991653974, now seen corresponding path program 1 times [2022-11-20 16:26:32,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:26:32,730 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [798377433] [2022-11-20 16:26:32,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:26:32,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:26:32,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:26:32,782 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-20 16:26:32,783 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:26:32,783 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [798377433] [2022-11-20 16:26:32,783 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [798377433] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 16:26:32,783 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 16:26:32,783 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 16:26:32,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491277705] [2022-11-20 16:26:32,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 16:26:32,784 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 16:26:32,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:26:32,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 16:26:32,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 16:26:32,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:26:32,786 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:26:32,786 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:26:32,786 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:26:32,786 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:26:32,786 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:26:32,786 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-11-20 16:26:32,786 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:26:33,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:26:33,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:26:33,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:26:33,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:26:33,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:26:33,410 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable328 [2022-11-20 16:26:33,410 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:26:33,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:26:33,411 INFO L85 PathProgramCache]: Analyzing trace with hash 1117349899, now seen corresponding path program 1 times [2022-11-20 16:26:33,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:26:33,411 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [680865745] [2022-11-20 16:26:33,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:26:33,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:26:33,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:26:33,486 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-20 16:26:33,486 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:26:33,486 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [680865745] [2022-11-20 16:26:33,486 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [680865745] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 16:26:33,486 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1974177160] [2022-11-20 16:26:33,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:26:33,486 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 16:26:33,486 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 [2022-11-20 16:26:33,487 INFO L229 MonitoredProcess]: Starting monitored process 180 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 16:26:33,490 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (180)] Waiting until timeout for monitored process [2022-11-20 16:26:35,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:26:35,354 INFO L263 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-20 16:26:35,355 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 16:26:35,433 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-20 16:26:35,433 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 16:26:35,540 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-20 16:26:35,540 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1974177160] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 16:26:35,540 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 16:26:35,540 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 9, 9] total 19 [2022-11-20 16:26:35,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903471189] [2022-11-20 16:26:35,540 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 16:26:35,541 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-20 16:26:35,541 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:26:35,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-20 16:26:35,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=263, Unknown=0, NotChecked=0, Total=342 [2022-11-20 16:26:35,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:26:35,542 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:26:35,542 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 10.578947368421053) internal successors, (201), 19 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:26:35,542 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:26:35,542 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:26:35,542 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:26:35,542 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:26:35,542 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:26:35,542 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:26:36,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:26:36,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:26:36,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:26:36,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:26:36,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:26:36,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-20 16:26:36,706 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (180)] Forceful destruction successful, exit code 0 [2022-11-20 16:26:36,894 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable329,180 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 16:26:36,894 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:26:36,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:26:36,894 INFO L85 PathProgramCache]: Analyzing trace with hash 2037489991, now seen corresponding path program 1 times [2022-11-20 16:26:36,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:26:36,894 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [764340021] [2022-11-20 16:26:36,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:26:36,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:26:36,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:26:37,275 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 217 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-20 16:26:37,275 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:26:37,276 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [764340021] [2022-11-20 16:26:37,276 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [764340021] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 16:26:37,276 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1095873370] [2022-11-20 16:26:37,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:26:37,276 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 16:26:37,276 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 [2022-11-20 16:26:37,277 INFO L229 MonitoredProcess]: Starting monitored process 181 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 16:26:37,280 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (181)] Waiting until timeout for monitored process [2022-11-20 16:26:39,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:26:39,187 INFO L263 TraceCheckSpWp]: Trace formula consists of 460 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-20 16:26:39,189 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 16:26:39,288 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 217 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-20 16:26:39,288 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 16:26:39,585 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 217 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-20 16:26:39,585 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1095873370] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 16:26:39,585 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 16:26:39,586 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 34 [2022-11-20 16:26:39,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204931896] [2022-11-20 16:26:39,586 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 16:26:39,586 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-11-20 16:26:39,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:26:39,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-11-20 16:26:39,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2022-11-20 16:26:39,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:26:39,588 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:26:39,588 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 7.5) internal successors, (255), 34 states have internal predecessors, (255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:26:39,588 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:26:39,589 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:26:39,589 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:26:39,589 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:26:39,589 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:26:39,589 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-11-20 16:26:39,589 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:26:42,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:26:42,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:26:42,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:26:42,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:26:42,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:26:42,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-20 16:26:42,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-11-20 16:26:42,154 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (181)] Ended with exit code 0 [2022-11-20 16:26:42,344 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 181 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable330 [2022-11-20 16:26:42,344 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:26:42,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:26:42,344 INFO L85 PathProgramCache]: Analyzing trace with hash 1568794643, now seen corresponding path program 1 times [2022-11-20 16:26:42,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:26:42,344 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [537504679] [2022-11-20 16:26:42,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:26:42,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:26:42,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:26:43,092 INFO L134 CoverageAnalysis]: Checked inductivity of 1073 backedges. 0 proven. 1065 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-20 16:26:43,093 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:26:43,093 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [537504679] [2022-11-20 16:26:43,093 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [537504679] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 16:26:43,093 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1089623697] [2022-11-20 16:26:43,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:26:43,093 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 16:26:43,093 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 [2022-11-20 16:26:43,094 INFO L229 MonitoredProcess]: Starting monitored process 182 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 16:26:43,096 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (182)] Waiting until timeout for monitored process [2022-11-20 16:26:45,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:26:45,011 INFO L263 TraceCheckSpWp]: Trace formula consists of 668 conjuncts, 32 conjunts are in the unsatisfiable core [2022-11-20 16:26:45,013 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 16:26:45,244 INFO L134 CoverageAnalysis]: Checked inductivity of 1073 backedges. 0 proven. 1065 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-20 16:26:45,244 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 16:26:46,342 INFO L134 CoverageAnalysis]: Checked inductivity of 1073 backedges. 0 proven. 1065 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-20 16:26:46,342 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1089623697] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 16:26:46,342 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 16:26:46,342 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33, 33] total 66 [2022-11-20 16:26:46,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [323159362] [2022-11-20 16:26:46,343 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 16:26:46,343 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 66 states [2022-11-20 16:26:46,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:26:46,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2022-11-20 16:26:46,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1122, Invalid=3168, Unknown=0, NotChecked=0, Total=4290 [2022-11-20 16:26:46,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:26:46,346 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:26:46,346 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 66 states, 66 states have (on average 6.287878787878788) internal successors, (415), 66 states have internal predecessors, (415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:26:46,346 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:26:46,346 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:26:46,346 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:26:46,347 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:26:46,347 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:26:46,347 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-11-20 16:26:46,347 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2022-11-20 16:26:46,347 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:26:56,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:26:56,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:26:56,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:26:56,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:26:56,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:26:56,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-20 16:26:56,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-11-20 16:26:56,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2022-11-20 16:26:56,104 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (182)] Forceful destruction successful, exit code 0 [2022-11-20 16:26:56,291 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable331,182 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 16:26:56,291 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:26:56,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:26:56,291 INFO L85 PathProgramCache]: Analyzing trace with hash -1591524693, now seen corresponding path program 1 times [2022-11-20 16:26:56,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:26:56,291 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [113233009] [2022-11-20 16:26:56,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:26:56,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:26:56,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:26:59,089 INFO L134 CoverageAnalysis]: Checked inductivity of 4689 backedges. 0 proven. 4681 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-20 16:26:59,090 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:26:59,090 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [113233009] [2022-11-20 16:26:59,090 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [113233009] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 16:26:59,090 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2087620701] [2022-11-20 16:26:59,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:26:59,090 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 16:26:59,090 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 [2022-11-20 16:26:59,091 INFO L229 MonitoredProcess]: Starting monitored process 183 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 16:26:59,093 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (183)] Waiting until timeout for monitored process [2022-11-20 16:27:01,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:27:01,089 INFO L263 TraceCheckSpWp]: Trace formula consists of 1084 conjuncts, 64 conjunts are in the unsatisfiable core [2022-11-20 16:27:01,092 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 16:27:01,492 INFO L134 CoverageAnalysis]: Checked inductivity of 4689 backedges. 0 proven. 4681 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-20 16:27:01,492 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 16:27:05,178 INFO L134 CoverageAnalysis]: Checked inductivity of 4689 backedges. 0 proven. 4681 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-20 16:27:05,178 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2087620701] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 16:27:05,179 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 16:27:05,179 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [65, 65, 65] total 130 [2022-11-20 16:27:05,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [731214758] [2022-11-20 16:27:05,179 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 16:27:05,180 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 130 states [2022-11-20 16:27:05,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:27:05,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 130 interpolants. [2022-11-20 16:27:05,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4290, Invalid=12480, Unknown=0, NotChecked=0, Total=16770 [2022-11-20 16:27:05,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:27:05,184 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:27:05,185 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 130 states, 130 states have (on average 5.653846153846154) internal successors, (735), 130 states have internal predecessors, (735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:27:05,185 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:27:05,185 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:27:05,185 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:27:05,185 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:27:05,185 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:27:05,186 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-11-20 16:27:05,186 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2022-11-20 16:27:05,186 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 93 states. [2022-11-20 16:27:05,186 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:27:20,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:27:20,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:27:20,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:27:20,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:27:20,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:27:20,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-20 16:27:20,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-11-20 16:27:20,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2022-11-20 16:27:20,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 120 states. [2022-11-20 16:27:20,664 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (183)] Ended with exit code 0 [2022-11-20 16:27:20,853 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 183 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable332 [2022-11-20 16:27:20,854 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:27:20,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:27:20,854 INFO L85 PathProgramCache]: Analyzing trace with hash -1880828330, now seen corresponding path program 1 times [2022-11-20 16:27:20,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:27:20,854 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [688112778] [2022-11-20 16:27:20,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:27:20,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:27:20,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 16:27:20,944 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 16:27:21,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 16:27:21,165 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 16:27:21,165 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-20 16:27:21,165 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 7 remaining) [2022-11-20 16:27:21,166 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 7 remaining) [2022-11-20 16:27:21,166 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 7 remaining) [2022-11-20 16:27:21,166 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 7 remaining) [2022-11-20 16:27:21,166 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 7 remaining) [2022-11-20 16:27:21,166 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (1 of 7 remaining) [2022-11-20 16:27:21,166 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK (0 of 7 remaining) [2022-11-20 16:27:21,167 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable333 [2022-11-20 16:27:21,170 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 16:27:21,170 WARN L233 ceAbstractionStarter]: 39 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-20 16:27:21,171 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 40 thread instances. [2022-11-20 16:27:21,263 INFO L144 ThreadInstanceAdder]: Constructed 40 joinOtherThreadTransitions. [2022-11-20 16:27:21,268 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 16:27:21,268 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-11-20 16:27:21,268 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 [2022-11-20 16:27:21,269 INFO L229 MonitoredProcess]: Starting monitored process 184 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-11-20 16:27:21,273 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (184)] Waiting until timeout for monitored process [2022-11-20 16:27:21,276 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-11-20 16:27:21,276 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2022-11-20 16:27:21,276 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@46174585, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 16:27:21,276 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-11-20 16:27:21,304 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:27:21,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:27:21,304 INFO L85 PathProgramCache]: Analyzing trace with hash 1302010862, now seen corresponding path program 1 times [2022-11-20 16:27:21,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:27:21,304 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [487256664] [2022-11-20 16:27:21,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:27:21,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:27:21,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:27:21,335 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:27:21,335 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:27:21,335 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [487256664] [2022-11-20 16:27:21,335 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [487256664] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 16:27:21,336 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 16:27:21,336 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 16:27:21,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1451917637] [2022-11-20 16:27:21,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 16:27:21,336 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-20 16:27:21,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:27:21,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-20 16:27:21,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-20 16:27:21,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:27:21,337 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:27:21,337 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:27:21,337 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:27:21,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:27:21,338 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable334 [2022-11-20 16:27:21,338 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:27:21,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:27:21,339 INFO L85 PathProgramCache]: Analyzing trace with hash 1659807523, now seen corresponding path program 1 times [2022-11-20 16:27:21,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:27:21,339 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [737911441] [2022-11-20 16:27:21,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:27:21,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:27:21,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:27:21,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:27:21,378 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:27:21,379 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [737911441] [2022-11-20 16:27:21,379 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [737911441] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 16:27:21,379 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 16:27:21,379 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 16:27:21,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [348271785] [2022-11-20 16:27:21,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 16:27:21,379 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 16:27:21,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:27:21,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 16:27:21,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 16:27:21,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:27:21,380 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:27:21,380 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:27:21,380 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:27:21,380 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:27:22,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:27:22,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:27:22,002 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable335 [2022-11-20 16:27:22,002 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:27:22,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:27:22,002 INFO L85 PathProgramCache]: Analyzing trace with hash 26788372, now seen corresponding path program 1 times [2022-11-20 16:27:22,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:27:22,003 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1579735911] [2022-11-20 16:27:22,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:27:22,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:27:22,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:27:22,069 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:27:22,069 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:27:22,069 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1579735911] [2022-11-20 16:27:22,069 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1579735911] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 16:27:22,069 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1006813034] [2022-11-20 16:27:22,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:27:22,069 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 16:27:22,070 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 [2022-11-20 16:27:22,072 INFO L229 MonitoredProcess]: Starting monitored process 185 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 16:27:22,073 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (185)] Waiting until timeout for monitored process [2022-11-20 16:27:23,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:27:23,968 INFO L263 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 16:27:23,969 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 16:27:23,991 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:27:23,991 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 16:27:24,021 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:27:24,021 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1006813034] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 16:27:24,022 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 16:27:24,022 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-11-20 16:27:24,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1130602456] [2022-11-20 16:27:24,022 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 16:27:24,022 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-20 16:27:24,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:27:24,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-20 16:27:24,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-20 16:27:24,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:27:24,023 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:27:24,023 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.4) internal successors, (74), 10 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:27:24,023 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:27:24,023 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:27:24,023 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:27:24,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:27:24,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:27:24,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:27:24,439 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (185)] Forceful destruction successful, exit code 0 [2022-11-20 16:27:24,624 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 185 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable336 [2022-11-20 16:27:24,624 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:27:24,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:27:24,624 INFO L85 PathProgramCache]: Analyzing trace with hash -1111250989, now seen corresponding path program 1 times [2022-11-20 16:27:24,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:27:24,624 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1744861785] [2022-11-20 16:27:24,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:27:24,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:27:24,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:27:24,693 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-20 16:27:24,693 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:27:24,693 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1744861785] [2022-11-20 16:27:24,693 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1744861785] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 16:27:24,693 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 16:27:24,693 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 16:27:24,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1550947179] [2022-11-20 16:27:24,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 16:27:24,694 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 16:27:24,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:27:24,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 16:27:24,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 16:27:24,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:27:24,694 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:27:24,695 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:27:24,695 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:27:24,695 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:27:24,695 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:27:24,695 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:27:25,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:27:25,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:27:25,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:27:25,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 16:27:25,041 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable337 [2022-11-20 16:27:25,041 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:27:25,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:27:25,041 INFO L85 PathProgramCache]: Analyzing trace with hash -410623358, now seen corresponding path program 1 times [2022-11-20 16:27:25,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:27:25,041 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1789041289] [2022-11-20 16:27:25,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:27:25,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:27:25,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:27:25,087 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-20 16:27:25,087 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:27:25,087 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1789041289] [2022-11-20 16:27:25,088 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1789041289] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 16:27:25,088 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 16:27:25,088 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 16:27:25,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1566461877] [2022-11-20 16:27:25,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 16:27:25,088 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 16:27:25,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:27:25,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 16:27:25,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 16:27:25,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:27:25,089 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:27:25,089 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:27:25,089 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:27:25,089 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:27:25,089 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:27:25,089 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-11-20 16:27:25,089 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:27:25,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:27:25,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:27:25,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:27:25,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:27:25,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:27:25,645 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable338 [2022-11-20 16:27:25,645 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:27:25,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:27:25,645 INFO L85 PathProgramCache]: Analyzing trace with hash 492451642, now seen corresponding path program 1 times [2022-11-20 16:27:25,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:27:25,645 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1918531973] [2022-11-20 16:27:25,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:27:25,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:27:25,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:27:25,736 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-20 16:27:25,736 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:27:25,736 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1918531973] [2022-11-20 16:27:25,736 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1918531973] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 16:27:25,737 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1684497146] [2022-11-20 16:27:25,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:27:25,737 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 16:27:25,737 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 [2022-11-20 16:27:25,739 INFO L229 MonitoredProcess]: Starting monitored process 186 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 16:27:25,763 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (186)] Waiting until timeout for monitored process [2022-11-20 16:27:27,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:27:27,706 INFO L263 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-20 16:27:27,708 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 16:27:27,785 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-20 16:27:27,786 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 16:27:27,892 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-20 16:27:27,892 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1684497146] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 16:27:27,892 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 16:27:27,893 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 9, 9] total 19 [2022-11-20 16:27:27,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [869917896] [2022-11-20 16:27:27,893 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 16:27:27,893 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-20 16:27:27,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:27:27,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-20 16:27:27,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=263, Unknown=0, NotChecked=0, Total=342 [2022-11-20 16:27:27,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:27:27,894 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:27:27,894 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 10.578947368421053) internal successors, (201), 19 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:27:27,894 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:27:27,894 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:27:27,895 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:27:27,895 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:27:27,895 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:27:27,895 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:27:28,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:27:28,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:27:28,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:27:28,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:27:28,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:27:28,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-20 16:27:28,919 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (186)] Forceful destruction successful, exit code 0 [2022-11-20 16:27:29,103 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable339,186 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 16:27:29,103 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:27:29,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:27:29,104 INFO L85 PathProgramCache]: Analyzing trace with hash 277843183, now seen corresponding path program 1 times [2022-11-20 16:27:29,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:27:29,104 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [369670443] [2022-11-20 16:27:29,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:27:29,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:27:29,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:27:29,456 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 217 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-20 16:27:29,456 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:27:29,457 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [369670443] [2022-11-20 16:27:29,457 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [369670443] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 16:27:29,457 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1279321377] [2022-11-20 16:27:29,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:27:29,457 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 16:27:29,457 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 [2022-11-20 16:27:29,458 INFO L229 MonitoredProcess]: Starting monitored process 187 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 16:27:29,460 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (187)] Waiting until timeout for monitored process [2022-11-20 16:27:31,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:27:31,411 INFO L263 TraceCheckSpWp]: Trace formula consists of 460 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-20 16:27:31,413 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 16:27:31,509 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 217 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-20 16:27:31,509 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 16:27:31,804 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 217 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-20 16:27:31,804 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1279321377] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 16:27:31,804 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 16:27:31,804 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 34 [2022-11-20 16:27:31,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1820384605] [2022-11-20 16:27:31,805 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 16:27:31,805 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-11-20 16:27:31,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:27:31,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-11-20 16:27:31,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2022-11-20 16:27:31,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:27:31,806 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:27:31,806 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 7.5) internal successors, (255), 34 states have internal predecessors, (255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:27:31,806 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:27:31,807 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:27:31,807 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:27:31,807 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:27:31,807 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:27:31,807 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-11-20 16:27:31,807 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:27:34,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:27:34,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:27:34,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:27:34,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:27:34,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:27:34,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-20 16:27:34,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-11-20 16:27:34,437 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (187)] Ended with exit code 0 [2022-11-20 16:27:34,626 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable340,187 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 16:27:34,626 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:27:34,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:27:34,626 INFO L85 PathProgramCache]: Analyzing trace with hash 630044443, now seen corresponding path program 1 times [2022-11-20 16:27:34,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:27:34,627 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668795296] [2022-11-20 16:27:34,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:27:34,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:27:34,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:27:35,385 INFO L134 CoverageAnalysis]: Checked inductivity of 1073 backedges. 0 proven. 1065 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-20 16:27:35,385 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:27:35,385 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1668795296] [2022-11-20 16:27:35,385 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1668795296] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 16:27:35,385 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2140594263] [2022-11-20 16:27:35,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:27:35,385 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 16:27:35,385 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 [2022-11-20 16:27:35,387 INFO L229 MonitoredProcess]: Starting monitored process 188 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 16:27:35,390 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (188)] Waiting until timeout for monitored process [2022-11-20 16:27:37,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:27:37,385 INFO L263 TraceCheckSpWp]: Trace formula consists of 668 conjuncts, 32 conjunts are in the unsatisfiable core [2022-11-20 16:27:37,387 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 16:27:37,582 INFO L134 CoverageAnalysis]: Checked inductivity of 1073 backedges. 0 proven. 1065 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-20 16:27:37,582 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 16:27:38,577 INFO L134 CoverageAnalysis]: Checked inductivity of 1073 backedges. 0 proven. 1065 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-20 16:27:38,578 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2140594263] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 16:27:38,578 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 16:27:38,578 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33, 33] total 66 [2022-11-20 16:27:38,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [970275065] [2022-11-20 16:27:38,578 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 16:27:38,579 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 66 states [2022-11-20 16:27:38,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 16:27:38,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2022-11-20 16:27:38,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1122, Invalid=3168, Unknown=0, NotChecked=0, Total=4290 [2022-11-20 16:27:38,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:27:38,580 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-20 16:27:38,580 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 66 states, 66 states have (on average 6.287878787878788) internal successors, (415), 66 states have internal predecessors, (415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 16:27:38,580 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:27:38,580 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:27:38,580 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:27:38,580 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:27:38,580 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:27:38,581 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-11-20 16:27:38,581 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2022-11-20 16:27:38,581 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:27:53,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 16:27:53,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:27:53,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 16:27:53,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 16:27:53,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 16:27:53,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-20 16:27:53,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-11-20 16:27:53,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2022-11-20 16:27:53,110 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (188)] Ended with exit code 0 [2022-11-20 16:27:53,298 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 188 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable341 [2022-11-20 16:27:53,299 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2022-11-20 16:27:53,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:27:53,299 INFO L85 PathProgramCache]: Analyzing trace with hash 132633459, now seen corresponding path program 1 times [2022-11-20 16:27:53,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 16:27:53,299 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1089601491] [2022-11-20 16:27:53,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:27:53,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:27:53,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:27:56,179 INFO L134 CoverageAnalysis]: Checked inductivity of 4689 backedges. 0 proven. 4681 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-20 16:27:56,179 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 16:27:56,179 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1089601491] [2022-11-20 16:27:56,179 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1089601491] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 16:27:56,179 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1632369532] [2022-11-20 16:27:56,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 16:27:56,180 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 16:27:56,180 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 [2022-11-20 16:27:56,181 INFO L229 MonitoredProcess]: Starting monitored process 189 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 16:27:56,183 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7598191-fdf6-46a6-a5f2-20a184aba866/bin/ugemcutter-CCe4ZdLeKS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (189)] Waiting until timeout for monitored process [2022-11-20 16:27:58,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:27:58,294 INFO L263 TraceCheckSpWp]: Trace formula consists of 1084 conjuncts, 64 conjunts are in the unsatisfiable core [2022-11-20 16:27:58,299 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 16:27:58,697 INFO L134 CoverageAnalysis]: Checked inductivity of 4689 backedges. 0 proven. 4681 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-20 16:27:58,697 INFO L328 TraceCheckSpWp]: Computing backward predicates...