./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_06-cond_racing1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 8393723b 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_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/config/GemCutterMemDerefMemtrack.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_06-cond_racing1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/config/svcomp-DerefFreeMemtrack-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k --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 830cb16a3cbc120e059f0ed7638e33ed20360a11f425952cf536aa3d659b86fc --- 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-8393723 [2022-11-18 01:43:32,335 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 01:43:32,338 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 01:43:32,386 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 01:43:32,388 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 01:43:32,393 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 01:43:32,396 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 01:43:32,399 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 01:43:32,404 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 01:43:32,406 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 01:43:32,407 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 01:43:32,410 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 01:43:32,411 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 01:43:32,417 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 01:43:32,419 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 01:43:32,420 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 01:43:32,423 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 01:43:32,426 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 01:43:32,428 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 01:43:32,433 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 01:43:32,436 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 01:43:32,437 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 01:43:32,441 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 01:43:32,442 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 01:43:32,453 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 01:43:32,454 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 01:43:32,454 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 01:43:32,456 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 01:43:32,458 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 01:43:32,459 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 01:43:32,459 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 01:43:32,461 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 01:43:32,465 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 01:43:32,466 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 01:43:32,467 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 01:43:32,468 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 01:43:32,468 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 01:43:32,469 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 01:43:32,469 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 01:43:32,470 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 01:43:32,471 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 01:43:32,472 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/config/svcomp-DerefFreeMemtrack-32bit-GemCutter_Default.epf [2022-11-18 01:43:32,502 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 01:43:32,502 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 01:43:32,503 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 01:43:32,503 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 01:43:32,505 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 01:43:32,506 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 01:43:32,506 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 01:43:32,507 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 01:43:32,507 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 01:43:32,507 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 01:43:32,508 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 01:43:32,508 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 01:43:32,508 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 01:43:32,508 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 01:43:32,508 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 01:43:32,509 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-18 01:43:32,509 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-18 01:43:32,509 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-18 01:43:32,509 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 01:43:32,509 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-18 01:43:32,510 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 01:43:32,510 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 01:43:32,510 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 01:43:32,510 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 01:43:32,511 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 01:43:32,511 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 01:43:32,511 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 01:43:32,511 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 01:43:32,512 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 01:43:32,512 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 01:43:32,512 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 01:43:32,512 INFO L138 SettingsManager]: * Abstraction used for commutativity in POR=VARIABLES_GLOBAL [2022-11-18 01:43:32,513 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-11-18 01:43:32,513 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2022-11-18 01:43:32,513 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2022-11-18 01:43:32,513 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_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 830cb16a3cbc120e059f0ed7638e33ed20360a11f425952cf536aa3d659b86fc [2022-11-18 01:43:32,895 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 01:43:32,935 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 01:43:32,939 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 01:43:32,940 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 01:43:32,941 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 01:43:32,943 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/../../sv-benchmarks/c/goblint-regression/28-race_reach_06-cond_racing1.i [2022-11-18 01:43:33,039 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/data/0a37007d0/0eee9e93bb8247cb8765641e531f2b01/FLAG98a4aa406 [2022-11-18 01:43:33,847 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 01:43:33,853 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/sv-benchmarks/c/goblint-regression/28-race_reach_06-cond_racing1.i [2022-11-18 01:43:33,883 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/data/0a37007d0/0eee9e93bb8247cb8765641e531f2b01/FLAG98a4aa406 [2022-11-18 01:43:33,902 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/data/0a37007d0/0eee9e93bb8247cb8765641e531f2b01 [2022-11-18 01:43:33,905 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 01:43:33,907 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 01:43:33,909 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 01:43:33,909 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 01:43:33,915 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 01:43:33,916 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 01:43:33" (1/1) ... [2022-11-18 01:43:33,918 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@158d680a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:43:33, skipping insertion in model container [2022-11-18 01:43:33,918 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 01:43:33" (1/1) ... [2022-11-18 01:43:33,931 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 01:43:34,002 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 01:43:34,522 WARN L234 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_70775e0f-385b-483e-ad0a-d1aa65ceed4c/sv-benchmarks/c/goblint-regression/28-race_reach_06-cond_racing1.i[41322,41335] [2022-11-18 01:43:34,563 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 01:43:34,581 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 01:43:34,653 WARN L234 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_70775e0f-385b-483e-ad0a-d1aa65ceed4c/sv-benchmarks/c/goblint-regression/28-race_reach_06-cond_racing1.i[41322,41335] [2022-11-18 01:43:34,672 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 01:43:34,738 INFO L208 MainTranslator]: Completed translation [2022-11-18 01:43:34,738 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:43:34 WrapperNode [2022-11-18 01:43:34,738 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 01:43:34,740 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 01:43:34,740 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 01:43:34,740 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 01:43:34,751 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:43:34" (1/1) ... [2022-11-18 01:43:34,774 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:43:34" (1/1) ... [2022-11-18 01:43:34,803 INFO L138 Inliner]: procedures = 270, calls = 36, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 88 [2022-11-18 01:43:34,803 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 01:43:34,804 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 01:43:34,804 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 01:43:34,805 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 01:43:34,815 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:43:34" (1/1) ... [2022-11-18 01:43:34,816 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:43:34" (1/1) ... [2022-11-18 01:43:34,820 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:43:34" (1/1) ... [2022-11-18 01:43:34,820 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:43:34" (1/1) ... [2022-11-18 01:43:34,827 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:43:34" (1/1) ... [2022-11-18 01:43:34,833 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:43:34" (1/1) ... [2022-11-18 01:43:34,835 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:43:34" (1/1) ... [2022-11-18 01:43:34,837 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:43:34" (1/1) ... [2022-11-18 01:43:34,841 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 01:43:34,842 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 01:43:34,842 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 01:43:34,842 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 01:43:34,844 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:43:34" (1/1) ... [2022-11-18 01:43:34,852 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 01:43:34,882 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 [2022-11-18 01:43:34,902 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 01:43:34,932 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 01:43:34,958 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 01:43:34,959 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 01:43:34,959 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-18 01:43:34,959 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 01:43:34,959 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-18 01:43:34,960 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 01:43:34,960 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-18 01:43:34,960 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-18 01:43:34,960 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 01:43:34,960 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 01:43:34,961 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 01:43:34,962 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-18 01:43:35,191 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 01:43:35,193 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 01:43:35,555 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 01:43:35,564 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 01:43:35,565 INFO L300 CfgBuilder]: Removed 10 assume(true) statements. [2022-11-18 01:43:35,567 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 01:43:35 BoogieIcfgContainer [2022-11-18 01:43:35,567 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 01:43:35,570 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 01:43:35,570 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 01:43:35,574 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 01:43:35,575 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 01:43:33" (1/3) ... [2022-11-18 01:43:35,576 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3777a30d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 01:43:35, skipping insertion in model container [2022-11-18 01:43:35,576 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:43:34" (2/3) ... [2022-11-18 01:43:35,577 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3777a30d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 01:43:35, skipping insertion in model container [2022-11-18 01:43:35,577 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 01:43:35" (3/3) ... [2022-11-18 01:43:35,579 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_06-cond_racing1.i [2022-11-18 01:43:35,601 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 01:43:35,601 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-11-18 01:43:35,601 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-18 01:43:35,662 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-11-18 01:43:35,710 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 01:43:35,711 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-11-18 01:43:35,711 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 [2022-11-18 01:43:35,715 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-11-18 01:43:35,751 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2022-11-18 01:43:35,792 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-11-18 01:43:35,811 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2022-11-18 01:43:35,817 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;@38e98ff3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 01:43:35,818 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-11-18 01:43:36,033 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)] === [2022-11-18 01:43:36,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:43:36,044 INFO L85 PathProgramCache]: Analyzing trace with hash -142093472, now seen corresponding path program 1 times [2022-11-18 01:43:36,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:43:36,056 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1552909055] [2022-11-18 01:43:36,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:43:36,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:43:36,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:43:36,403 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:43:36,404 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:43:36,404 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1552909055] [2022-11-18 01:43:36,405 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1552909055] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 01:43:36,405 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 01:43:36,405 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 01:43:36,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [844002483] [2022-11-18 01:43:36,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 01:43:36,413 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-18 01:43:36,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:43:36,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-18 01:43:36,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-18 01:43:36,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:43:36,448 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:43:36,449 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 27.5) internal successors, (55), 2 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:43:36,450 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:43:36,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:43:36,482 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 01:43:36,483 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)] === [2022-11-18 01:43:36,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:43:36,484 INFO L85 PathProgramCache]: Analyzing trace with hash 1365458337, now seen corresponding path program 1 times [2022-11-18 01:43:36,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:43:36,484 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [623089276] [2022-11-18 01:43:36,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:43:36,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:43:36,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:43:36,700 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:43:36,700 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:43:36,701 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [623089276] [2022-11-18 01:43:36,701 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [623089276] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 01:43:36,702 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 01:43:36,702 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 01:43:36,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [701362696] [2022-11-18 01:43:36,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 01:43:36,705 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 01:43:36,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:43:36,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 01:43:36,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 01:43:36,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:43:36,710 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:43:36,710 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:43:36,711 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:43:36,711 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:43:36,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:43:36,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:43:36,920 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 01:43:36,921 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)] === [2022-11-18 01:43:36,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:43:36,922 INFO L85 PathProgramCache]: Analyzing trace with hash -355062450, now seen corresponding path program 1 times [2022-11-18 01:43:36,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:43:36,922 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [137852326] [2022-11-18 01:43:36,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:43:36,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:43:36,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:43:37,196 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:43:37,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:43:37,198 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [137852326] [2022-11-18 01:43:37,198 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [137852326] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 01:43:37,198 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1912558081] [2022-11-18 01:43:37,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:43:37,199 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:43:37,199 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 [2022-11-18 01:43:37,204 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 01:43:37,206 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-18 01:43:37,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:43:37,352 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 01:43:37,358 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 01:43:37,453 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:43:37,454 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 01:43:37,556 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:43:37,556 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1912558081] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 01:43:37,557 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 01:43:37,557 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-11-18 01:43:37,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1368110639] [2022-11-18 01:43:37,558 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 01:43:37,558 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-18 01:43:37,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:43:37,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-18 01:43:37,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-18 01:43:37,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:43:37,561 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:43:37,561 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.7) internal successors, (87), 10 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:43:37,561 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:43:37,562 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:43:37,562 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:43:37,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:43:37,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:43:37,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:43:37,692 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-18 01:43:37,885 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2022-11-18 01:43:37,886 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)] === [2022-11-18 01:43:37,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:43:37,887 INFO L85 PathProgramCache]: Analyzing trace with hash 781037068, now seen corresponding path program 1 times [2022-11-18 01:43:37,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:43:37,887 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [92017289] [2022-11-18 01:43:37,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:43:37,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:43:37,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 01:43:37,913 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 01:43:37,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 01:43:37,955 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 01:43:37,955 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-18 01:43:37,957 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 7 remaining) [2022-11-18 01:43:37,959 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 7 remaining) [2022-11-18 01:43:37,960 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 7 remaining) [2022-11-18 01:43:37,960 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 7 remaining) [2022-11-18 01:43:37,960 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 7 remaining) [2022-11-18 01:43:37,961 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (1 of 7 remaining) [2022-11-18 01:43:37,961 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK (0 of 7 remaining) [2022-11-18 01:43:37,961 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-18 01:43:37,978 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-11-18 01:43:37,983 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-18 01:43:37,983 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2022-11-18 01:43:38,010 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-18 01:43:38,014 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 01:43:38,015 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-11-18 01:43:38,015 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 [2022-11-18 01:43:38,016 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-11-18 01:43:38,024 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-11-18 01:43:38,025 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2022-11-18 01:43:38,026 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;@38e98ff3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 01:43:38,026 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-11-18 01:43:38,043 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (4)] Waiting until timeout for monitored process [2022-11-18 01:43:38,104 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)] === [2022-11-18 01:43:38,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:43:38,105 INFO L85 PathProgramCache]: Analyzing trace with hash 318461185, now seen corresponding path program 1 times [2022-11-18 01:43:38,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:43:38,105 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [657202278] [2022-11-18 01:43:38,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:43:38,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:43:38,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:43:38,148 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:43:38,151 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:43:38,152 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [657202278] [2022-11-18 01:43:38,153 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [657202278] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 01:43:38,153 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 01:43:38,154 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 01:43:38,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [941474462] [2022-11-18 01:43:38,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 01:43:38,155 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-18 01:43:38,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:43:38,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-18 01:43:38,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-18 01:43:38,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:43:38,158 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:43:38,159 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 27.5) internal successors, (55), 2 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:43:38,159 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:43:38,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:43:38,184 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-18 01:43:38,184 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)] === [2022-11-18 01:43:38,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:43:38,191 INFO L85 PathProgramCache]: Analyzing trace with hash 1826012994, now seen corresponding path program 1 times [2022-11-18 01:43:38,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:43:38,191 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [423038138] [2022-11-18 01:43:38,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:43:38,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:43:38,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:43:38,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:43:38,248 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:43:38,249 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [423038138] [2022-11-18 01:43:38,249 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [423038138] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 01:43:38,249 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 01:43:38,249 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 01:43:38,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [766973119] [2022-11-18 01:43:38,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 01:43:38,250 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 01:43:38,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:43:38,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 01:43:38,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 01:43:38,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:43:38,252 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:43:38,253 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:43:38,253 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:43:38,253 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:43:38,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:43:38,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:43:38,390 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-18 01:43:38,390 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)] === [2022-11-18 01:43:38,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:43:38,391 INFO L85 PathProgramCache]: Analyzing trace with hash 351601771, now seen corresponding path program 1 times [2022-11-18 01:43:38,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:43:38,392 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [670935673] [2022-11-18 01:43:38,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:43:38,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:43:38,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:43:38,532 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:43:38,532 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:43:38,533 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [670935673] [2022-11-18 01:43:38,533 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [670935673] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 01:43:38,533 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1136273634] [2022-11-18 01:43:38,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:43:38,534 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:43:38,534 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 [2022-11-18 01:43:38,539 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 01:43:38,568 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-18 01:43:38,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:43:38,678 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 01:43:38,684 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 01:43:38,754 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:43:38,755 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 01:43:38,832 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:43:38,833 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1136273634] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 01:43:38,833 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 01:43:38,833 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-11-18 01:43:38,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1206356417] [2022-11-18 01:43:38,834 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 01:43:38,835 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-18 01:43:38,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:43:38,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-18 01:43:38,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-18 01:43:38,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:43:38,837 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:43:38,838 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.7) internal successors, (87), 10 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:43:38,838 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:43:38,838 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:43:38,838 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:43:38,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:43:38,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:43:38,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:43:39,001 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-18 01:43:39,193 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:43:39,193 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)] === [2022-11-18 01:43:39,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:43:39,194 INFO L85 PathProgramCache]: Analyzing trace with hash -804801329, now seen corresponding path program 1 times [2022-11-18 01:43:39,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:43:39,194 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1061328281] [2022-11-18 01:43:39,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:43:39,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:43:39,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 01:43:39,235 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 01:43:39,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 01:43:39,264 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 01:43:39,264 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-18 01:43:39,265 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 7 remaining) [2022-11-18 01:43:39,265 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 7 remaining) [2022-11-18 01:43:39,265 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 7 remaining) [2022-11-18 01:43:39,265 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 7 remaining) [2022-11-18 01:43:39,266 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 7 remaining) [2022-11-18 01:43:39,266 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (1 of 7 remaining) [2022-11-18 01:43:39,266 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK (0 of 7 remaining) [2022-11-18 01:43:39,266 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-18 01:43:39,272 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-11-18 01:43:39,272 WARN L233 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-18 01:43:39,273 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2022-11-18 01:43:39,298 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-11-18 01:43:39,302 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 01:43:39,302 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-11-18 01:43:39,302 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 [2022-11-18 01:43:39,303 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-11-18 01:43:39,311 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (6)] Waiting until timeout for monitored process [2022-11-18 01:43:39,314 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-11-18 01:43:39,314 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2022-11-18 01:43:39,315 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;@38e98ff3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 01:43:39,315 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-11-18 01:43:39,383 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)] === [2022-11-18 01:43:39,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:43:39,384 INFO L85 PathProgramCache]: Analyzing trace with hash 1395064546, now seen corresponding path program 1 times [2022-11-18 01:43:39,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:43:39,384 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [160151841] [2022-11-18 01:43:39,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:43:39,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:43:39,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:43:39,428 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:43:39,439 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:43:39,439 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [160151841] [2022-11-18 01:43:39,440 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [160151841] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 01:43:39,440 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 01:43:39,440 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 01:43:39,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297676919] [2022-11-18 01:43:39,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 01:43:39,441 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-18 01:43:39,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:43:39,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-18 01:43:39,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-18 01:43:39,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:43:39,444 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:43:39,445 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 27.5) internal successors, (55), 2 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:43:39,445 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:43:39,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:43:39,452 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-18 01:43:39,452 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)] === [2022-11-18 01:43:39,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:43:39,454 INFO L85 PathProgramCache]: Analyzing trace with hash -1392350941, now seen corresponding path program 1 times [2022-11-18 01:43:39,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:43:39,454 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [282383192] [2022-11-18 01:43:39,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:43:39,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:43:39,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:43:39,520 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:43:39,521 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:43:39,521 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [282383192] [2022-11-18 01:43:39,521 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [282383192] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 01:43:39,521 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 01:43:39,522 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 01:43:39,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [863953951] [2022-11-18 01:43:39,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 01:43:39,523 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 01:43:39,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:43:39,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 01:43:39,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 01:43:39,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:43:39,527 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:43:39,528 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:43:39,528 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:43:39,528 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:43:39,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:43:39,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:43:39,736 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-18 01:43:39,736 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)] === [2022-11-18 01:43:39,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:43:39,737 INFO L85 PathProgramCache]: Analyzing trace with hash -1726817336, now seen corresponding path program 1 times [2022-11-18 01:43:39,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:43:39,737 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1396526649] [2022-11-18 01:43:39,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:43:39,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:43:39,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:43:39,840 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:43:39,840 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:43:39,840 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1396526649] [2022-11-18 01:43:39,840 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1396526649] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 01:43:39,841 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [629967544] [2022-11-18 01:43:39,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:43:39,841 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:43:39,841 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 [2022-11-18 01:43:39,845 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 01:43:39,851 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-18 01:43:39,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:43:39,940 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 01:43:39,942 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 01:43:39,983 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:43:39,985 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 01:43:40,050 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:43:40,056 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [629967544] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 01:43:40,056 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 01:43:40,056 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-11-18 01:43:40,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1189122289] [2022-11-18 01:43:40,057 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 01:43:40,058 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-18 01:43:40,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:43:40,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-18 01:43:40,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-18 01:43:40,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:43:40,062 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:43:40,063 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.7) internal successors, (87), 10 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:43:40,064 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:43:40,064 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:43:40,064 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:43:40,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:43:40,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:43:40,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:43:40,273 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-18 01:43:40,473 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:43:40,474 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)] === [2022-11-18 01:43:40,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:43:40,475 INFO L85 PathProgramCache]: Analyzing trace with hash 775447957, now seen corresponding path program 1 times [2022-11-18 01:43:40,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:43:40,475 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1112797163] [2022-11-18 01:43:40,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:43:40,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:43:40,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:43:40,671 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-18 01:43:40,671 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:43:40,672 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1112797163] [2022-11-18 01:43:40,672 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1112797163] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 01:43:40,672 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 01:43:40,672 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 01:43:40,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1628831221] [2022-11-18 01:43:40,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 01:43:40,673 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 01:43:40,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:43:40,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 01:43:40,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 01:43:40,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:43:40,675 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:43:40,675 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:43:40,676 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:43:40,676 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:43:40,676 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:43:40,676 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:43:40,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:43:40,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:43:40,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:43:40,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 01:43:40,800 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-18 01:43:40,800 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)] === [2022-11-18 01:43:40,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:43:40,800 INFO L85 PathProgramCache]: Analyzing trace with hash -1891580258, now seen corresponding path program 1 times [2022-11-18 01:43:40,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:43:40,801 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1328907407] [2022-11-18 01:43:40,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:43:40,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:43:40,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:43:40,876 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-18 01:43:40,877 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:43:40,877 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1328907407] [2022-11-18 01:43:40,877 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1328907407] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 01:43:40,877 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 01:43:40,877 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 01:43:40,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [897887146] [2022-11-18 01:43:40,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 01:43:40,878 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 01:43:40,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:43:40,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 01:43:40,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 01:43:40,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:43:40,880 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:43:40,880 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:43:40,880 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:43:40,880 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:43:40,880 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:43:40,880 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-11-18 01:43:40,881 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:43:41,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:43:41,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:43:41,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:43:41,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:43:41,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:43:41,028 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-18 01:43:41,028 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)] === [2022-11-18 01:43:41,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:43:41,029 INFO L85 PathProgramCache]: Analyzing trace with hash -9196681, now seen corresponding path program 1 times [2022-11-18 01:43:41,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:43:41,029 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1219114161] [2022-11-18 01:43:41,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:43:41,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:43:41,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:43:41,211 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-18 01:43:41,211 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:43:41,212 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1219114161] [2022-11-18 01:43:41,212 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1219114161] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 01:43:41,212 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1594684113] [2022-11-18 01:43:41,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:43:41,212 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:43:41,213 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 [2022-11-18 01:43:41,214 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 01:43:41,247 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-18 01:43:41,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:43:41,385 INFO L263 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-18 01:43:41,400 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 01:43:41,552 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 01:43:41,552 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 01:43:41,720 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 01:43:41,721 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1594684113] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 01:43:41,721 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 01:43:41,721 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 9, 9] total 19 [2022-11-18 01:43:41,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1042467165] [2022-11-18 01:43:41,722 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 01:43:41,723 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-18 01:43:41,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:43:41,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-18 01:43:41,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=263, Unknown=0, NotChecked=0, Total=342 [2022-11-18 01:43:41,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:43:41,725 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:43:41,725 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 11.631578947368421) internal successors, (221), 19 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:43:41,726 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:43:41,726 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:43:41,726 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:43:41,726 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:43:41,726 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:43:41,727 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:43:41,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:43:41,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:43:41,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:43:41,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:43:41,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:43:41,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-18 01:43:41,883 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-18 01:43:42,083 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-11-18 01:43:42,084 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)] === [2022-11-18 01:43:42,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:43:42,084 INFO L85 PathProgramCache]: Analyzing trace with hash 632809995, now seen corresponding path program 1 times [2022-11-18 01:43:42,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:43:42,085 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1104163056] [2022-11-18 01:43:42,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:43:42,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:43:42,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 01:43:42,120 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 01:43:42,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 01:43:42,169 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 01:43:42,171 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-18 01:43:42,172 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 7 remaining) [2022-11-18 01:43:42,172 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 7 remaining) [2022-11-18 01:43:42,172 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 7 remaining) [2022-11-18 01:43:42,173 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 7 remaining) [2022-11-18 01:43:42,173 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 7 remaining) [2022-11-18 01:43:42,173 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (1 of 7 remaining) [2022-11-18 01:43:42,173 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK (0 of 7 remaining) [2022-11-18 01:43:42,174 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-18 01:43:42,188 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2022-11-18 01:43:42,188 WARN L233 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-18 01:43:42,189 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2022-11-18 01:43:42,231 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-11-18 01:43:42,237 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 01:43:42,238 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-11-18 01:43:42,238 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 [2022-11-18 01:43:42,239 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-11-18 01:43:42,250 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-11-18 01:43:42,251 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2022-11-18 01:43:42,251 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;@38e98ff3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 01:43:42,251 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-11-18 01:43:42,274 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (9)] Waiting until timeout for monitored process [2022-11-18 01:43:42,288 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)] === [2022-11-18 01:43:42,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:43:42,289 INFO L85 PathProgramCache]: Analyzing trace with hash -46334086, now seen corresponding path program 1 times [2022-11-18 01:43:42,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:43:42,289 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [803646614] [2022-11-18 01:43:42,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:43:42,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:43:42,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:43:42,321 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:43:42,321 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:43:42,321 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [803646614] [2022-11-18 01:43:42,321 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [803646614] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 01:43:42,321 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 01:43:42,322 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 01:43:42,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [456713274] [2022-11-18 01:43:42,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 01:43:42,323 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-18 01:43:42,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:43:42,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-18 01:43:42,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-18 01:43:42,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:43:42,326 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:43:42,326 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 27.5) internal successors, (55), 2 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:43:42,326 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:43:42,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:43:42,329 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-18 01:43:42,329 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)] === [2022-11-18 01:43:42,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:43:42,329 INFO L85 PathProgramCache]: Analyzing trace with hash 1461217723, now seen corresponding path program 1 times [2022-11-18 01:43:42,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:43:42,330 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [183095289] [2022-11-18 01:43:42,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:43:42,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:43:42,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:43:42,369 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:43:42,369 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:43:42,370 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [183095289] [2022-11-18 01:43:42,370 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [183095289] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 01:43:42,370 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 01:43:42,370 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 01:43:42,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1076403270] [2022-11-18 01:43:42,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 01:43:42,371 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 01:43:42,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:43:42,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 01:43:42,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 01:43:42,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:43:42,373 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:43:42,373 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:43:42,373 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:43:42,373 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:43:42,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:43:42,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:43:42,497 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-18 01:43:42,497 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)] === [2022-11-18 01:43:42,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:43:42,498 INFO L85 PathProgramCache]: Analyzing trace with hash 931616636, now seen corresponding path program 1 times [2022-11-18 01:43:42,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:43:42,498 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1513526267] [2022-11-18 01:43:42,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:43:42,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:43:42,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:43:42,616 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:43:42,616 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:43:42,616 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1513526267] [2022-11-18 01:43:42,617 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1513526267] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 01:43:42,617 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [763448679] [2022-11-18 01:43:42,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:43:42,617 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:43:42,618 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 [2022-11-18 01:43:42,623 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 01:43:42,647 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-11-18 01:43:42,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:43:42,758 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 01:43:42,760 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 01:43:42,806 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:43:42,806 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 01:43:42,854 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:43:42,855 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [763448679] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 01:43:42,855 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 01:43:42,855 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-11-18 01:43:42,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [864941730] [2022-11-18 01:43:42,856 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 01:43:42,856 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-18 01:43:42,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:43:42,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-18 01:43:42,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-18 01:43:42,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:43:42,859 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:43:42,859 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.7) internal successors, (87), 10 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:43:42,859 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:43:42,859 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:43:42,860 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:43:43,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:43:43,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:43:43,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:43:43,025 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-11-18 01:43:43,225 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-11-18 01:43:43,226 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)] === [2022-11-18 01:43:43,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:43:43,226 INFO L85 PathProgramCache]: Analyzing trace with hash -2038497663, now seen corresponding path program 1 times [2022-11-18 01:43:43,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:43:43,227 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [951076680] [2022-11-18 01:43:43,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:43:43,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:43:43,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:43:43,388 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-18 01:43:43,388 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:43:43,389 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [951076680] [2022-11-18 01:43:43,389 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [951076680] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 01:43:43,389 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 01:43:43,389 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 01:43:43,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1829633654] [2022-11-18 01:43:43,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 01:43:43,390 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 01:43:43,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:43:43,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 01:43:43,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 01:43:43,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:43:43,392 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:43:43,392 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:43:43,392 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:43:43,393 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:43:43,393 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:43:43,393 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:43:43,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:43:43,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:43:43,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:43:43,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 01:43:43,479 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-18 01:43:43,479 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)] === [2022-11-18 01:43:43,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:43:43,480 INFO L85 PathProgramCache]: Analyzing trace with hash -1660549942, now seen corresponding path program 1 times [2022-11-18 01:43:43,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:43:43,480 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [333854078] [2022-11-18 01:43:43,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:43:43,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:43:43,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:43:43,551 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-18 01:43:43,552 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:43:43,552 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [333854078] [2022-11-18 01:43:43,552 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [333854078] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 01:43:43,552 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 01:43:43,552 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 01:43:43,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2131250534] [2022-11-18 01:43:43,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 01:43:43,553 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 01:43:43,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:43:43,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 01:43:43,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 01:43:43,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:43:43,555 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:43:43,556 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:43:43,556 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:43:43,556 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:43:43,556 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:43:43,556 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-11-18 01:43:43,557 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:43:43,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:43:43,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:43:43,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:43:43,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:43:43,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:43:43,746 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-18 01:43:43,747 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)] === [2022-11-18 01:43:43,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:43:43,748 INFO L85 PathProgramCache]: Analyzing trace with hash -1864033434, now seen corresponding path program 1 times [2022-11-18 01:43:43,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:43:43,748 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [827936665] [2022-11-18 01:43:43,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:43:43,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:43:43,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:43:43,900 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-18 01:43:43,900 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:43:43,900 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [827936665] [2022-11-18 01:43:43,901 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [827936665] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 01:43:43,901 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1173272871] [2022-11-18 01:43:43,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:43:43,901 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:43:43,901 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 [2022-11-18 01:43:43,903 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 01:43:43,935 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-11-18 01:43:44,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:43:44,066 INFO L263 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-18 01:43:44,071 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 01:43:44,188 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 01:43:44,188 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 01:43:44,377 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 01:43:44,377 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1173272871] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 01:43:44,377 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 01:43:44,378 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 9, 9] total 19 [2022-11-18 01:43:44,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661922290] [2022-11-18 01:43:44,378 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 01:43:44,379 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-18 01:43:44,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:43:44,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-18 01:43:44,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=263, Unknown=0, NotChecked=0, Total=342 [2022-11-18 01:43:44,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:43:44,381 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:43:44,382 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 11.631578947368421) internal successors, (221), 19 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:43:44,382 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:43:44,382 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:43:44,383 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:43:44,383 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:43:44,383 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:43:44,383 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:43:44,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:43:44,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:43:44,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:43:44,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:43:44,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:43:44,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-18 01:43:44,628 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-11-18 01:43:44,827 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2022-11-18 01:43:44,828 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)] === [2022-11-18 01:43:44,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:43:44,828 INFO L85 PathProgramCache]: Analyzing trace with hash -43897129, now seen corresponding path program 1 times [2022-11-18 01:43:44,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:43:44,829 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1395436365] [2022-11-18 01:43:44,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:43:44,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:43:44,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 01:43:44,867 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 01:43:44,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 01:43:44,904 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 01:43:44,904 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-18 01:43:44,904 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 7 remaining) [2022-11-18 01:43:44,905 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 7 remaining) [2022-11-18 01:43:44,905 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 7 remaining) [2022-11-18 01:43:44,905 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 7 remaining) [2022-11-18 01:43:44,905 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 7 remaining) [2022-11-18 01:43:44,906 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (1 of 7 remaining) [2022-11-18 01:43:44,906 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK (0 of 7 remaining) [2022-11-18 01:43:44,906 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-11-18 01:43:44,913 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2022-11-18 01:43:44,913 WARN L233 ceAbstractionStarter]: 4 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-18 01:43:44,914 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 5 thread instances. [2022-11-18 01:43:44,948 INFO L144 ThreadInstanceAdder]: Constructed 5 joinOtherThreadTransitions. [2022-11-18 01:43:44,954 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 01:43:44,954 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-11-18 01:43:44,954 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 [2022-11-18 01:43:44,955 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-11-18 01:43:44,961 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-11-18 01:43:44,961 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2022-11-18 01:43:44,962 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;@38e98ff3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 01:43:44,962 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-11-18 01:43:44,984 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (12)] Waiting until timeout for monitored process [2022-11-18 01:43:45,001 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)] === [2022-11-18 01:43:45,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:43:45,002 INFO L85 PathProgramCache]: Analyzing trace with hash -871684014, now seen corresponding path program 1 times [2022-11-18 01:43:45,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:43:45,002 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409101585] [2022-11-18 01:43:45,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:43:45,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:43:45,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:43:45,025 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:43:45,025 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:43:45,026 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1409101585] [2022-11-18 01:43:45,026 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1409101585] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 01:43:45,026 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 01:43:45,026 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 01:43:45,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [239467286] [2022-11-18 01:43:45,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 01:43:45,027 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-18 01:43:45,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:43:45,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-18 01:43:45,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-18 01:43:45,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:43:45,028 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:43:45,029 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 27.5) internal successors, (55), 2 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:43:45,029 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:43:45,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:43:45,031 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-11-18 01:43:45,031 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)] === [2022-11-18 01:43:45,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:43:45,032 INFO L85 PathProgramCache]: Analyzing trace with hash 635867795, now seen corresponding path program 1 times [2022-11-18 01:43:45,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:43:45,032 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1638498276] [2022-11-18 01:43:45,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:43:45,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:43:45,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:43:45,096 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:43:45,097 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:43:45,097 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1638498276] [2022-11-18 01:43:45,097 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1638498276] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 01:43:45,097 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 01:43:45,098 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 01:43:45,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260633290] [2022-11-18 01:43:45,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 01:43:45,098 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 01:43:45,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:43:45,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 01:43:45,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 01:43:45,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:43:45,100 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:43:45,100 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:43:45,100 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:43:45,101 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:43:45,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:43:45,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:43:45,237 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-11-18 01:43:45,237 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)] === [2022-11-18 01:43:45,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:43:45,238 INFO L85 PathProgramCache]: Analyzing trace with hash 804967280, now seen corresponding path program 1 times [2022-11-18 01:43:45,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:43:45,238 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [978829952] [2022-11-18 01:43:45,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:43:45,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:43:45,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:43:45,317 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:43:45,318 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:43:45,318 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [978829952] [2022-11-18 01:43:45,318 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [978829952] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 01:43:45,318 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2072327200] [2022-11-18 01:43:45,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:43:45,319 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:43:45,319 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 [2022-11-18 01:43:45,323 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 01:43:45,347 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-11-18 01:43:45,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:43:45,464 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 01:43:45,465 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 01:43:45,505 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:43:45,505 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 01:43:45,553 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:43:45,553 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2072327200] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 01:43:45,553 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 01:43:45,553 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-11-18 01:43:45,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618646504] [2022-11-18 01:43:45,554 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 01:43:45,554 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-18 01:43:45,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:43:45,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-18 01:43:45,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-18 01:43:45,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:43:45,556 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:43:45,556 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.7) internal successors, (87), 10 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:43:45,557 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:43:45,557 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:43:45,557 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:43:45,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:43:45,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:43:45,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:43:45,729 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-11-18 01:43:45,923 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:43:45,923 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)] === [2022-11-18 01:43:45,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:43:45,924 INFO L85 PathProgramCache]: Analyzing trace with hash -355973203, now seen corresponding path program 1 times [2022-11-18 01:43:45,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:43:45,924 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [158247039] [2022-11-18 01:43:45,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:43:45,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:43:45,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:43:46,069 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-18 01:43:46,070 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:43:46,070 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [158247039] [2022-11-18 01:43:46,070 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [158247039] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 01:43:46,070 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 01:43:46,071 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 01:43:46,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340186735] [2022-11-18 01:43:46,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 01:43:46,072 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 01:43:46,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:43:46,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 01:43:46,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 01:43:46,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:43:46,073 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:43:46,074 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:43:46,074 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:43:46,074 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:43:46,074 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:43:46,074 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:43:46,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:43:46,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:43:46,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:43:46,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 01:43:46,198 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-11-18 01:43:46,199 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)] === [2022-11-18 01:43:46,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:43:46,199 INFO L85 PathProgramCache]: Analyzing trace with hash 1996276470, now seen corresponding path program 1 times [2022-11-18 01:43:46,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:43:46,200 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [21905088] [2022-11-18 01:43:46,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:43:46,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:43:46,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:43:46,264 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-18 01:43:46,265 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:43:46,265 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [21905088] [2022-11-18 01:43:46,265 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [21905088] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 01:43:46,265 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 01:43:46,266 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 01:43:46,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1507202628] [2022-11-18 01:43:46,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 01:43:46,266 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 01:43:46,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:43:46,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 01:43:46,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 01:43:46,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:43:46,268 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:43:46,268 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:43:46,269 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:43:46,269 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:43:46,269 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:43:46,269 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-11-18 01:43:46,269 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:43:46,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:43:46,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:43:46,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:43:46,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:43:46,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:43:46,434 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-11-18 01:43:46,434 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)] === [2022-11-18 01:43:46,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:43:46,435 INFO L85 PathProgramCache]: Analyzing trace with hash 1985007253, now seen corresponding path program 1 times [2022-11-18 01:43:46,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:43:46,435 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [749851630] [2022-11-18 01:43:46,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:43:46,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:43:46,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:43:46,578 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-18 01:43:46,578 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:43:46,578 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [749851630] [2022-11-18 01:43:46,579 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [749851630] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 01:43:46,579 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [286199028] [2022-11-18 01:43:46,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:43:46,579 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:43:46,580 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 [2022-11-18 01:43:46,581 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 01:43:46,616 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-11-18 01:43:46,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:43:46,774 INFO L263 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-18 01:43:46,776 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 01:43:46,901 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 01:43:46,902 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 01:43:47,128 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 01:43:47,128 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [286199028] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 01:43:47,128 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 01:43:47,129 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 9, 9] total 19 [2022-11-18 01:43:47,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1087935768] [2022-11-18 01:43:47,129 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 01:43:47,130 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-18 01:43:47,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:43:47,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-18 01:43:47,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=263, Unknown=0, NotChecked=0, Total=342 [2022-11-18 01:43:47,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:43:47,132 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:43:47,134 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 11.631578947368421) internal successors, (221), 19 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:43:47,134 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:43:47,134 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:43:47,135 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:43:47,135 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:43:47,135 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:43:47,135 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:43:47,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:43:47,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:43:47,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:43:47,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:43:47,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:43:47,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-18 01:43:47,482 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-11-18 01:43:47,675 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:43:47,676 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)] === [2022-11-18 01:43:47,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:43:47,677 INFO L85 PathProgramCache]: Analyzing trace with hash 1540276444, now seen corresponding path program 1 times [2022-11-18 01:43:47,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:43:47,677 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1322167213] [2022-11-18 01:43:47,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:43:47,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:43:47,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 01:43:47,712 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 01:43:47,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 01:43:47,769 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 01:43:47,770 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-18 01:43:47,771 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 7 remaining) [2022-11-18 01:43:47,771 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 7 remaining) [2022-11-18 01:43:47,771 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 7 remaining) [2022-11-18 01:43:47,771 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 7 remaining) [2022-11-18 01:43:47,772 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 7 remaining) [2022-11-18 01:43:47,772 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (1 of 7 remaining) [2022-11-18 01:43:47,772 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK (0 of 7 remaining) [2022-11-18 01:43:47,773 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-11-18 01:43:47,779 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2022-11-18 01:43:47,780 WARN L233 ceAbstractionStarter]: 5 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-18 01:43:47,780 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 6 thread instances. [2022-11-18 01:43:47,835 INFO L144 ThreadInstanceAdder]: Constructed 6 joinOtherThreadTransitions. [2022-11-18 01:43:47,839 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 01:43:47,839 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-11-18 01:43:47,839 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 [2022-11-18 01:43:47,841 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-11-18 01:43:47,846 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (15)] Waiting until timeout for monitored process [2022-11-18 01:43:47,848 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-11-18 01:43:47,851 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2022-11-18 01:43:47,852 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;@38e98ff3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 01:43:47,852 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-11-18 01:43:47,909 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)] === [2022-11-18 01:43:47,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:43:47,909 INFO L85 PathProgramCache]: Analyzing trace with hash -1080985238, now seen corresponding path program 1 times [2022-11-18 01:43:47,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:43:47,910 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2077980118] [2022-11-18 01:43:47,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:43:47,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:43:47,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:43:47,934 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:43:47,935 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:43:47,935 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2077980118] [2022-11-18 01:43:47,935 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2077980118] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 01:43:47,935 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 01:43:47,936 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 01:43:47,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1595095898] [2022-11-18 01:43:47,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 01:43:47,936 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-18 01:43:47,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:43:47,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-18 01:43:47,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-18 01:43:47,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:43:47,938 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:43:47,938 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 27.5) internal successors, (55), 2 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:43:47,939 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:43:47,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:43:47,941 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-11-18 01:43:47,942 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)] === [2022-11-18 01:43:47,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:43:47,944 INFO L85 PathProgramCache]: Analyzing trace with hash 426566571, now seen corresponding path program 1 times [2022-11-18 01:43:47,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:43:47,944 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1494836303] [2022-11-18 01:43:47,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:43:47,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:43:47,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:43:47,984 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:43:47,984 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:43:47,984 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1494836303] [2022-11-18 01:43:47,985 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1494836303] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 01:43:47,985 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 01:43:47,985 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 01:43:47,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1884492763] [2022-11-18 01:43:47,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 01:43:47,986 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 01:43:47,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:43:47,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 01:43:47,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 01:43:47,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:43:47,988 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:43:47,988 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:43:47,988 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:43:47,988 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:43:48,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:43:48,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:43:48,161 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-11-18 01:43:48,161 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)] === [2022-11-18 01:43:48,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:43:48,162 INFO L85 PathProgramCache]: Analyzing trace with hash -2106765404, now seen corresponding path program 1 times [2022-11-18 01:43:48,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:43:48,163 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2017151391] [2022-11-18 01:43:48,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:43:48,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:43:48,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:43:48,260 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:43:48,260 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:43:48,260 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2017151391] [2022-11-18 01:43:48,260 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2017151391] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 01:43:48,261 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1008843696] [2022-11-18 01:43:48,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:43:48,261 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:43:48,261 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 [2022-11-18 01:43:48,267 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 01:43:48,283 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-11-18 01:43:48,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:43:48,425 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 01:43:48,427 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 01:43:48,459 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:43:48,459 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 01:43:48,500 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:43:48,501 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1008843696] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 01:43:48,501 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 01:43:48,501 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-11-18 01:43:48,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [338868302] [2022-11-18 01:43:48,501 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 01:43:48,502 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-18 01:43:48,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:43:48,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-18 01:43:48,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-18 01:43:48,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:43:48,504 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:43:48,504 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.7) internal successors, (87), 10 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:43:48,504 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:43:48,504 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:43:48,505 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:43:48,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:43:48,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:43:48,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:43:48,688 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2022-11-18 01:43:48,887 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable31 [2022-11-18 01:43:48,888 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)] === [2022-11-18 01:43:48,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:43:48,888 INFO L85 PathProgramCache]: Analyzing trace with hash 1528054041, now seen corresponding path program 1 times [2022-11-18 01:43:48,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:43:48,888 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [847858717] [2022-11-18 01:43:48,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:43:48,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:43:48,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:43:49,084 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-18 01:43:49,084 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:43:49,084 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [847858717] [2022-11-18 01:43:49,085 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [847858717] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 01:43:49,085 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 01:43:49,085 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 01:43:49,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1633091684] [2022-11-18 01:43:49,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 01:43:49,086 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 01:43:49,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:43:49,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 01:43:49,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 01:43:49,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:43:49,087 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:43:49,088 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:43:49,088 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:43:49,088 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:43:49,088 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:43:49,088 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:43:49,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:43:49,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:43:49,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:43:49,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 01:43:49,188 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-11-18 01:43:49,188 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)] === [2022-11-18 01:43:49,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:43:49,189 INFO L85 PathProgramCache]: Analyzing trace with hash 488964386, now seen corresponding path program 1 times [2022-11-18 01:43:49,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:43:49,189 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1538605446] [2022-11-18 01:43:49,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:43:49,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:43:49,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:43:49,251 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-18 01:43:49,251 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:43:49,251 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1538605446] [2022-11-18 01:43:49,252 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1538605446] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 01:43:49,252 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 01:43:49,252 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 01:43:49,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537776296] [2022-11-18 01:43:49,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 01:43:49,254 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 01:43:49,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:43:49,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 01:43:49,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 01:43:49,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:43:49,256 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:43:49,256 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:43:49,256 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:43:49,256 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:43:49,256 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:43:49,257 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-11-18 01:43:49,257 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:43:49,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:43:49,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:43:49,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:43:49,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:43:49,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:43:49,436 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-11-18 01:43:49,436 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)] === [2022-11-18 01:43:49,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:43:49,437 INFO L85 PathProgramCache]: Analyzing trace with hash 296397700, now seen corresponding path program 1 times [2022-11-18 01:43:49,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:43:49,437 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [982581342] [2022-11-18 01:43:49,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:43:49,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:43:49,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:43:49,616 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-18 01:43:49,617 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:43:49,617 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [982581342] [2022-11-18 01:43:49,617 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [982581342] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 01:43:49,617 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1048997572] [2022-11-18 01:43:49,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:43:49,618 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:43:49,618 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 [2022-11-18 01:43:49,619 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 01:43:49,643 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-11-18 01:43:49,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:43:49,815 INFO L263 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-18 01:43:49,817 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 01:43:49,934 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 01:43:49,934 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 01:43:50,090 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 01:43:50,090 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1048997572] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 01:43:50,091 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 01:43:50,091 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 9, 9] total 19 [2022-11-18 01:43:50,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056982976] [2022-11-18 01:43:50,091 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 01:43:50,092 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-18 01:43:50,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:43:50,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-18 01:43:50,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=263, Unknown=0, NotChecked=0, Total=342 [2022-11-18 01:43:50,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:43:50,094 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:43:50,095 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 11.631578947368421) internal successors, (221), 19 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:43:50,095 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:43:50,095 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:43:50,095 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:43:50,095 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:43:50,096 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:43:50,096 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:43:50,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:43:50,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:43:50,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:43:50,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:43:50,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:43:50,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-18 01:43:50,500 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2022-11-18 01:43:50,699 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2022-11-18 01:43:50,699 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)] === [2022-11-18 01:43:50,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:43:50,700 INFO L85 PathProgramCache]: Analyzing trace with hash -1686629926, now seen corresponding path program 1 times [2022-11-18 01:43:50,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:43:50,700 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1178100984] [2022-11-18 01:43:50,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:43:50,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:43:50,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 01:43:50,729 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 01:43:50,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 01:43:50,765 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 01:43:50,765 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-18 01:43:50,766 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 7 remaining) [2022-11-18 01:43:50,766 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 7 remaining) [2022-11-18 01:43:50,766 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 7 remaining) [2022-11-18 01:43:50,767 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 7 remaining) [2022-11-18 01:43:50,767 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 7 remaining) [2022-11-18 01:43:50,767 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (1 of 7 remaining) [2022-11-18 01:43:50,767 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK (0 of 7 remaining) [2022-11-18 01:43:50,767 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-11-18 01:43:50,772 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2022-11-18 01:43:50,774 WARN L233 ceAbstractionStarter]: 6 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-18 01:43:50,775 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 7 thread instances. [2022-11-18 01:43:50,809 INFO L144 ThreadInstanceAdder]: Constructed 7 joinOtherThreadTransitions. [2022-11-18 01:43:50,812 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 01:43:50,812 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-11-18 01:43:50,812 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 [2022-11-18 01:43:50,813 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-11-18 01:43:50,825 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-11-18 01:43:50,825 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2022-11-18 01:43:50,825 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;@38e98ff3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 01:43:50,825 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-11-18 01:43:50,849 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (18)] Waiting until timeout for monitored process [2022-11-18 01:43:50,864 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)] === [2022-11-18 01:43:50,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:43:50,864 INFO L85 PathProgramCache]: Analyzing trace with hash -674237758, now seen corresponding path program 1 times [2022-11-18 01:43:50,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:43:50,864 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1562138732] [2022-11-18 01:43:50,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:43:50,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:43:50,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:43:50,892 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:43:50,893 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:43:50,893 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1562138732] [2022-11-18 01:43:50,893 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1562138732] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 01:43:50,893 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 01:43:50,894 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 01:43:50,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2091786389] [2022-11-18 01:43:50,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 01:43:50,895 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-18 01:43:50,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:43:50,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-18 01:43:50,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-18 01:43:50,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:43:50,897 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:43:50,897 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 27.5) internal successors, (55), 2 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:43:50,897 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:43:50,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:43:50,900 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-11-18 01:43:50,900 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)] === [2022-11-18 01:43:50,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:43:50,901 INFO L85 PathProgramCache]: Analyzing trace with hash 833314051, now seen corresponding path program 1 times [2022-11-18 01:43:50,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:43:50,901 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1486659361] [2022-11-18 01:43:50,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:43:50,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:43:50,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:43:50,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:43:50,937 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:43:50,937 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1486659361] [2022-11-18 01:43:50,937 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1486659361] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 01:43:50,938 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 01:43:50,938 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 01:43:50,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1884679608] [2022-11-18 01:43:50,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 01:43:50,939 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 01:43:50,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:43:50,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 01:43:50,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 01:43:50,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:43:50,940 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:43:50,941 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:43:50,941 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:43:50,941 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:43:51,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:43:51,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:43:51,147 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-11-18 01:43:51,147 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)] === [2022-11-18 01:43:51,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:43:51,148 INFO L85 PathProgramCache]: Analyzing trace with hash 786353176, now seen corresponding path program 1 times [2022-11-18 01:43:51,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:43:51,150 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [627896408] [2022-11-18 01:43:51,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:43:51,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:43:51,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:43:51,236 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:43:51,236 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:43:51,237 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [627896408] [2022-11-18 01:43:51,238 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [627896408] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 01:43:51,238 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [833762554] [2022-11-18 01:43:51,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:43:51,238 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:43:51,239 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 [2022-11-18 01:43:51,243 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 01:43:51,263 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2022-11-18 01:43:51,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:43:51,417 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 01:43:51,418 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 01:43:51,449 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:43:51,450 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 01:43:51,495 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:43:51,495 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [833762554] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 01:43:51,495 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 01:43:51,495 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-11-18 01:43:51,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2045147650] [2022-11-18 01:43:51,496 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 01:43:51,496 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-18 01:43:51,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:43:51,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-18 01:43:51,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-18 01:43:51,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:43:51,498 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:43:51,499 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.7) internal successors, (87), 10 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:43:51,499 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:43:51,499 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:43:51,499 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:43:51,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:43:51,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:43:51,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:43:51,663 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2022-11-18 01:43:51,861 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2022-11-18 01:43:51,861 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)] === [2022-11-18 01:43:51,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:43:51,862 INFO L85 PathProgramCache]: Analyzing trace with hash -681383227, now seen corresponding path program 1 times [2022-11-18 01:43:51,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:43:51,862 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [524334252] [2022-11-18 01:43:51,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:43:51,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:43:51,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:43:51,988 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-18 01:43:51,989 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:43:51,989 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [524334252] [2022-11-18 01:43:51,989 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [524334252] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 01:43:51,989 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 01:43:51,989 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 01:43:51,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [685594239] [2022-11-18 01:43:51,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 01:43:51,990 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 01:43:51,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:43:51,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 01:43:51,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 01:43:51,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:43:51,992 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:43:51,992 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:43:51,992 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:43:51,992 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:43:51,993 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:43:51,993 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:43:52,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:43:52,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:43:52,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:43:52,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 01:43:52,089 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-11-18 01:43:52,089 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)] === [2022-11-18 01:43:52,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:43:52,089 INFO L85 PathProgramCache]: Analyzing trace with hash -1887518898, now seen corresponding path program 1 times [2022-11-18 01:43:52,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:43:52,091 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1819305063] [2022-11-18 01:43:52,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:43:52,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:43:52,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:43:52,166 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-18 01:43:52,166 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:43:52,167 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1819305063] [2022-11-18 01:43:52,167 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1819305063] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 01:43:52,167 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 01:43:52,167 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 01:43:52,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059482514] [2022-11-18 01:43:52,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 01:43:52,168 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 01:43:52,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:43:52,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 01:43:52,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 01:43:52,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:43:52,170 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:43:52,170 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:43:52,170 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:43:52,170 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:43:52,170 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:43:52,170 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-11-18 01:43:52,171 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:43:52,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:43:52,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:43:52,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:43:52,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:43:52,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:43:52,379 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-11-18 01:43:52,380 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)] === [2022-11-18 01:43:52,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:43:52,380 INFO L85 PathProgramCache]: Analyzing trace with hash -1364584141, now seen corresponding path program 1 times [2022-11-18 01:43:52,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:43:52,381 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [618882798] [2022-11-18 01:43:52,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:43:52,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:43:52,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:43:52,527 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-18 01:43:52,527 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:43:52,527 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [618882798] [2022-11-18 01:43:52,528 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [618882798] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 01:43:52,528 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2045532663] [2022-11-18 01:43:52,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:43:52,528 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:43:52,529 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 [2022-11-18 01:43:52,530 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 01:43:52,540 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2022-11-18 01:43:52,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:43:52,750 INFO L263 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-18 01:43:52,753 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 01:43:52,885 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 01:43:52,886 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 01:43:53,055 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 01:43:53,056 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2045532663] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 01:43:53,056 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 01:43:53,056 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 9, 9] total 19 [2022-11-18 01:43:53,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2033997434] [2022-11-18 01:43:53,057 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 01:43:53,059 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-18 01:43:53,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:43:53,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-18 01:43:53,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=263, Unknown=0, NotChecked=0, Total=342 [2022-11-18 01:43:53,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:43:53,062 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:43:53,062 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 11.631578947368421) internal successors, (221), 19 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:43:53,063 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:43:53,063 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:43:53,063 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:43:53,063 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:43:53,063 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:43:53,064 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:43:53,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:43:53,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:43:53,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:43:53,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:43:53,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:43:53,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-18 01:43:53,778 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2022-11-18 01:43:53,971 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:43:53,972 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)] === [2022-11-18 01:43:53,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:43:53,972 INFO L85 PathProgramCache]: Analyzing trace with hash -123967769, now seen corresponding path program 1 times [2022-11-18 01:43:53,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:43:53,972 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1681397196] [2022-11-18 01:43:53,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:43:53,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:43:54,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:43:54,601 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 217 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 01:43:54,602 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:43:54,602 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1681397196] [2022-11-18 01:43:54,602 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1681397196] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 01:43:54,603 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1056557170] [2022-11-18 01:43:54,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:43:54,603 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:43:54,603 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 [2022-11-18 01:43:54,605 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 01:43:54,615 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2022-11-18 01:43:54,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:43:54,862 INFO L263 TraceCheckSpWp]: Trace formula consists of 490 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-18 01:43:54,866 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 01:43:55,004 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 217 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 01:43:55,004 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 01:43:55,386 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 217 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 01:43:55,387 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1056557170] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 01:43:55,387 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 01:43:55,387 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 34 [2022-11-18 01:43:55,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449004832] [2022-11-18 01:43:55,388 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 01:43:55,390 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-11-18 01:43:55,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:43:55,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-11-18 01:43:55,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2022-11-18 01:43:55,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:43:55,395 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:43:55,396 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 7.9411764705882355) internal successors, (270), 34 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:43:55,396 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:43:55,396 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:43:55,396 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:43:55,396 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:43:55,396 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:43:55,397 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-11-18 01:43:55,397 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:43:55,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:43:55,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:43:55,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:43:55,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:43:55,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:43:55,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-18 01:43:55,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-18 01:43:55,822 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2022-11-18 01:43:56,022 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable42 [2022-11-18 01:43:56,022 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)] === [2022-11-18 01:43:56,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:43:56,023 INFO L85 PathProgramCache]: Analyzing trace with hash 210707345, now seen corresponding path program 1 times [2022-11-18 01:43:56,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:43:56,023 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [515565169] [2022-11-18 01:43:56,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:43:56,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:43:56,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 01:43:56,056 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 01:43:56,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 01:43:56,090 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 01:43:56,090 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-18 01:43:56,090 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 7 remaining) [2022-11-18 01:43:56,090 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 7 remaining) [2022-11-18 01:43:56,091 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 7 remaining) [2022-11-18 01:43:56,091 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 7 remaining) [2022-11-18 01:43:56,091 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 7 remaining) [2022-11-18 01:43:56,091 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (1 of 7 remaining) [2022-11-18 01:43:56,092 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK (0 of 7 remaining) [2022-11-18 01:43:56,092 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-11-18 01:43:56,096 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 01:43:56,097 WARN L233 ceAbstractionStarter]: 7 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-18 01:43:56,097 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 8 thread instances. [2022-11-18 01:43:56,133 INFO L144 ThreadInstanceAdder]: Constructed 8 joinOtherThreadTransitions. [2022-11-18 01:43:56,136 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 01:43:56,137 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-11-18 01:43:56,137 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 [2022-11-18 01:43:56,138 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-11-18 01:43:56,144 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-11-18 01:43:56,144 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2022-11-18 01:43:56,144 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;@38e98ff3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 01:43:56,144 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-11-18 01:43:56,168 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (22)] Waiting until timeout for monitored process [2022-11-18 01:43:56,181 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)] === [2022-11-18 01:43:56,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:43:56,182 INFO L85 PathProgramCache]: Analyzing trace with hash 348558426, now seen corresponding path program 1 times [2022-11-18 01:43:56,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:43:56,182 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [415066524] [2022-11-18 01:43:56,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:43:56,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:43:56,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:43:56,201 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:43:56,201 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:43:56,201 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [415066524] [2022-11-18 01:43:56,202 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [415066524] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 01:43:56,202 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 01:43:56,202 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 01:43:56,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1550302815] [2022-11-18 01:43:56,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 01:43:56,203 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-18 01:43:56,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:43:56,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-18 01:43:56,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-18 01:43:56,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:43:56,206 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:43:56,206 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 27.5) internal successors, (55), 2 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:43:56,207 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:43:56,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:43:56,208 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-11-18 01:43:56,209 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)] === [2022-11-18 01:43:56,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:43:56,209 INFO L85 PathProgramCache]: Analyzing trace with hash 1856110235, now seen corresponding path program 1 times [2022-11-18 01:43:56,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:43:56,210 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1189660937] [2022-11-18 01:43:56,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:43:56,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:43:56,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:43:56,244 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:43:56,244 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:43:56,244 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1189660937] [2022-11-18 01:43:56,244 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1189660937] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 01:43:56,245 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 01:43:56,245 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 01:43:56,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1640808981] [2022-11-18 01:43:56,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 01:43:56,245 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 01:43:56,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:43:56,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 01:43:56,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 01:43:56,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:43:56,247 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:43:56,247 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:43:56,247 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:43:56,247 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:43:56,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:43:56,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:43:56,398 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-11-18 01:43:56,398 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)] === [2022-11-18 01:43:56,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:43:56,399 INFO L85 PathProgramCache]: Analyzing trace with hash 894388428, now seen corresponding path program 1 times [2022-11-18 01:43:56,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:43:56,399 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1992845254] [2022-11-18 01:43:56,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:43:56,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:43:56,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:43:56,461 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:43:56,461 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:43:56,462 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1992845254] [2022-11-18 01:43:56,462 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1992845254] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 01:43:56,462 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [209495387] [2022-11-18 01:43:56,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:43:56,462 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:43:56,463 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 [2022-11-18 01:43:56,466 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 01:43:56,483 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2022-11-18 01:43:56,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:43:56,654 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 01:43:56,655 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 01:43:56,683 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:43:56,683 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 01:43:56,724 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:43:56,725 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [209495387] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 01:43:56,725 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 01:43:56,725 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-11-18 01:43:56,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2006296306] [2022-11-18 01:43:56,725 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 01:43:56,726 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-18 01:43:56,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:43:56,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-18 01:43:56,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-18 01:43:56,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:43:56,727 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:43:56,728 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.7) internal successors, (87), 10 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:43:56,728 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:43:56,728 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:43:56,728 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:43:56,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:43:56,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:43:56,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:43:56,881 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2022-11-18 01:43:57,074 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable46 [2022-11-18 01:43:57,075 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)] === [2022-11-18 01:43:57,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:43:57,076 INFO L85 PathProgramCache]: Analyzing trace with hash 1605649585, now seen corresponding path program 1 times [2022-11-18 01:43:57,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:43:57,077 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [936454686] [2022-11-18 01:43:57,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:43:57,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:43:57,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:43:57,213 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-18 01:43:57,214 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:43:57,214 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [936454686] [2022-11-18 01:43:57,214 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [936454686] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 01:43:57,214 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 01:43:57,214 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 01:43:57,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398861861] [2022-11-18 01:43:57,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 01:43:57,215 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 01:43:57,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:43:57,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 01:43:57,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 01:43:57,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:43:57,219 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:43:57,219 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:43:57,219 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:43:57,220 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:43:57,220 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:43:57,220 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:43:57,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:43:57,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:43:57,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:43:57,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 01:43:57,342 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-11-18 01:43:57,342 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)] === [2022-11-18 01:43:57,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:43:57,342 INFO L85 PathProgramCache]: Analyzing trace with hash -838206086, now seen corresponding path program 1 times [2022-11-18 01:43:57,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:43:57,343 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [940216472] [2022-11-18 01:43:57,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:43:57,343 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:43:57,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:43:57,397 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-18 01:43:57,398 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:43:57,398 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [940216472] [2022-11-18 01:43:57,398 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [940216472] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 01:43:57,398 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 01:43:57,398 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 01:43:57,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [989595906] [2022-11-18 01:43:57,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 01:43:57,399 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 01:43:57,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:43:57,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 01:43:57,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 01:43:57,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:43:57,401 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:43:57,401 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:43:57,402 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:43:57,402 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:43:57,402 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:43:57,402 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-11-18 01:43:57,402 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:43:57,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:43:57,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:43:57,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:43:57,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:43:57,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:43:57,589 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-11-18 01:43:57,590 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)] === [2022-11-18 01:43:57,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:43:57,590 INFO L85 PathProgramCache]: Analyzing trace with hash 1034937250, now seen corresponding path program 1 times [2022-11-18 01:43:57,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:43:57,591 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [279032766] [2022-11-18 01:43:57,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:43:57,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:43:57,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:43:57,706 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-18 01:43:57,706 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:43:57,707 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [279032766] [2022-11-18 01:43:57,707 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [279032766] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 01:43:57,707 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [885648970] [2022-11-18 01:43:57,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:43:57,708 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:43:57,708 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 [2022-11-18 01:43:57,709 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 01:43:57,740 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2022-11-18 01:43:57,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:43:57,964 INFO L263 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-18 01:43:57,966 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 01:43:58,070 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 01:43:58,070 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 01:43:58,219 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 01:43:58,220 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [885648970] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 01:43:58,220 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 01:43:58,220 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 9, 9] total 19 [2022-11-18 01:43:58,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1862808631] [2022-11-18 01:43:58,221 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 01:43:58,221 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-18 01:43:58,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:43:58,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-18 01:43:58,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=263, Unknown=0, NotChecked=0, Total=342 [2022-11-18 01:43:58,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:43:58,223 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:43:58,224 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 11.631578947368421) internal successors, (221), 19 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:43:58,224 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:43:58,224 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:43:58,224 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:43:58,224 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:43:58,225 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:43:58,225 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:43:58,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:43:58,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:43:58,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:43:58,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:43:58,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:43:58,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-18 01:43:58,941 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2022-11-18 01:43:59,134 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable49 [2022-11-18 01:43:59,134 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)] === [2022-11-18 01:43:59,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:43:59,135 INFO L85 PathProgramCache]: Analyzing trace with hash -11197053, now seen corresponding path program 1 times [2022-11-18 01:43:59,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:43:59,135 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2146678004] [2022-11-18 01:43:59,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:43:59,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:43:59,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:43:59,725 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 217 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 01:43:59,725 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:43:59,725 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2146678004] [2022-11-18 01:43:59,726 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2146678004] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 01:43:59,726 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2079002474] [2022-11-18 01:43:59,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:43:59,726 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:43:59,726 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 [2022-11-18 01:43:59,728 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 01:43:59,736 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2022-11-18 01:44:00,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:44:00,126 INFO L263 TraceCheckSpWp]: Trace formula consists of 490 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-18 01:44:00,129 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 01:44:00,282 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 217 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 01:44:00,282 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 01:44:00,699 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 217 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 01:44:00,700 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2079002474] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 01:44:00,700 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 01:44:00,700 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 34 [2022-11-18 01:44:00,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [296136662] [2022-11-18 01:44:00,700 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 01:44:00,701 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-11-18 01:44:00,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:44:00,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-11-18 01:44:00,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2022-11-18 01:44:00,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:00,703 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:44:00,703 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 7.9411764705882355) internal successors, (270), 34 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:44:00,703 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:00,703 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:44:00,703 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:44:00,703 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:44:00,703 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:44:00,703 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-11-18 01:44:00,704 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:01,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:01,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:44:01,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:44:01,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:44:01,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:44:01,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-18 01:44:01,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-11-18 01:44:01,213 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2022-11-18 01:44:01,412 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50,25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:44:01,413 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)] === [2022-11-18 01:44:01,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:44:01,414 INFO L85 PathProgramCache]: Analyzing trace with hash -1906866239, now seen corresponding path program 1 times [2022-11-18 01:44:01,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:44:01,414 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1983257449] [2022-11-18 01:44:01,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:44:01,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:44:01,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 01:44:01,483 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 01:44:01,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 01:44:01,548 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 01:44:01,548 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-18 01:44:01,548 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 7 remaining) [2022-11-18 01:44:01,549 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 7 remaining) [2022-11-18 01:44:01,549 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 7 remaining) [2022-11-18 01:44:01,549 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 7 remaining) [2022-11-18 01:44:01,550 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 7 remaining) [2022-11-18 01:44:01,550 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (1 of 7 remaining) [2022-11-18 01:44:01,550 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK (0 of 7 remaining) [2022-11-18 01:44:01,551 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-11-18 01:44:01,557 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 01:44:01,559 WARN L233 ceAbstractionStarter]: 8 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-18 01:44:01,559 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 9 thread instances. [2022-11-18 01:44:01,600 INFO L144 ThreadInstanceAdder]: Constructed 9 joinOtherThreadTransitions. [2022-11-18 01:44:01,604 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 01:44:01,605 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-11-18 01:44:01,605 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 [2022-11-18 01:44:01,606 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-11-18 01:44:01,613 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-11-18 01:44:01,613 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2022-11-18 01:44:01,613 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;@38e98ff3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 01:44:01,614 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-11-18 01:44:01,635 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (26)] Waiting until timeout for monitored process [2022-11-18 01:44:01,673 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)] === [2022-11-18 01:44:01,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:44:01,674 INFO L85 PathProgramCache]: Analyzing trace with hash 1987403314, now seen corresponding path program 1 times [2022-11-18 01:44:01,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:44:01,674 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2147015891] [2022-11-18 01:44:01,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:44:01,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:44:01,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:44:01,704 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:44:01,704 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:44:01,704 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2147015891] [2022-11-18 01:44:01,705 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2147015891] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 01:44:01,705 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 01:44:01,705 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 01:44:01,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [660182768] [2022-11-18 01:44:01,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 01:44:01,706 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-18 01:44:01,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:44:01,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-18 01:44:01,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-18 01:44:01,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:01,709 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:44:01,709 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 27.5) internal successors, (55), 2 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:44:01,709 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:01,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:01,711 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-11-18 01:44:01,711 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)] === [2022-11-18 01:44:01,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:44:01,712 INFO L85 PathProgramCache]: Analyzing trace with hash -800012173, now seen corresponding path program 1 times [2022-11-18 01:44:01,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:44:01,713 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1435308715] [2022-11-18 01:44:01,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:44:01,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:44:01,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:44:01,749 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:44:01,749 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:44:01,749 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1435308715] [2022-11-18 01:44:01,750 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1435308715] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 01:44:01,750 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 01:44:01,750 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 01:44:01,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [297534729] [2022-11-18 01:44:01,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 01:44:01,751 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 01:44:01,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:44:01,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 01:44:01,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 01:44:01,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:01,752 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:44:01,753 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:44:01,753 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:01,753 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:01,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:01,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:44:01,934 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2022-11-18 01:44:01,934 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)] === [2022-11-18 01:44:01,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:44:01,935 INFO L85 PathProgramCache]: Analyzing trace with hash -1782659648, now seen corresponding path program 1 times [2022-11-18 01:44:01,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:44:01,935 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2034590820] [2022-11-18 01:44:01,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:44:01,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:44:01,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:44:01,997 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:44:01,997 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:44:01,997 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2034590820] [2022-11-18 01:44:01,997 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2034590820] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 01:44:01,998 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1143414261] [2022-11-18 01:44:01,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:44:01,998 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:44:01,998 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 [2022-11-18 01:44:02,002 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 01:44:02,025 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2022-11-18 01:44:02,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:44:02,206 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 01:44:02,208 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 01:44:02,235 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:44:02,236 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 01:44:02,277 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:44:02,277 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1143414261] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 01:44:02,278 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 01:44:02,278 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-11-18 01:44:02,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1044571038] [2022-11-18 01:44:02,278 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 01:44:02,279 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-18 01:44:02,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:44:02,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-18 01:44:02,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-18 01:44:02,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:02,280 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:44:02,281 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.7) internal successors, (87), 10 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:44:02,281 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:02,281 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:44:02,281 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:02,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:02,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:44:02,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:44:02,452 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0 [2022-11-18 01:44:02,645 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54,27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:44:02,645 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)] === [2022-11-18 01:44:02,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:44:02,646 INFO L85 PathProgramCache]: Analyzing trace with hash -200782115, now seen corresponding path program 1 times [2022-11-18 01:44:02,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:44:02,647 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [91303100] [2022-11-18 01:44:02,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:44:02,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:44:02,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:44:02,768 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-18 01:44:02,768 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:44:02,768 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [91303100] [2022-11-18 01:44:02,769 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [91303100] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 01:44:02,769 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 01:44:02,769 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 01:44:02,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1490503248] [2022-11-18 01:44:02,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 01:44:02,770 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 01:44:02,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:44:02,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 01:44:02,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 01:44:02,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:02,771 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:44:02,772 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:44:02,772 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:02,772 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:44:02,772 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:44:02,772 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:02,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:02,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:44:02,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:44:02,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 01:44:02,886 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2022-11-18 01:44:02,886 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)] === [2022-11-18 01:44:02,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:44:02,887 INFO L85 PathProgramCache]: Analyzing trace with hash -658064474, now seen corresponding path program 1 times [2022-11-18 01:44:02,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:44:02,887 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [72603573] [2022-11-18 01:44:02,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:44:02,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:44:02,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:44:02,991 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-18 01:44:02,992 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:44:02,992 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [72603573] [2022-11-18 01:44:02,992 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [72603573] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 01:44:02,992 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 01:44:02,992 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 01:44:02,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [52894407] [2022-11-18 01:44:02,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 01:44:02,993 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 01:44:02,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:44:02,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 01:44:02,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 01:44:02,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:02,995 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:44:02,995 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:44:02,996 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:02,996 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:44:02,996 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:44:02,996 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-11-18 01:44:02,996 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:03,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:03,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:44:03,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:44:03,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:44:03,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:44:03,201 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2022-11-18 01:44:03,202 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)] === [2022-11-18 01:44:03,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:44:03,202 INFO L85 PathProgramCache]: Analyzing trace with hash -1468036271, now seen corresponding path program 1 times [2022-11-18 01:44:03,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:44:03,203 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1811236866] [2022-11-18 01:44:03,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:44:03,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:44:03,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:44:03,328 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-18 01:44:03,328 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:44:03,328 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1811236866] [2022-11-18 01:44:03,328 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1811236866] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 01:44:03,329 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1832749133] [2022-11-18 01:44:03,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:44:03,329 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:44:03,329 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 [2022-11-18 01:44:03,332 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 01:44:03,355 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2022-11-18 01:44:03,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:44:03,596 INFO L263 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-18 01:44:03,598 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 01:44:03,707 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 01:44:03,707 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 01:44:03,852 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 01:44:03,852 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1832749133] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 01:44:03,852 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 01:44:03,852 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 9, 9] total 19 [2022-11-18 01:44:03,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1879996430] [2022-11-18 01:44:03,853 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 01:44:03,854 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-18 01:44:03,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:44:03,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-18 01:44:03,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=263, Unknown=0, NotChecked=0, Total=342 [2022-11-18 01:44:03,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:03,855 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:44:03,856 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 11.631578947368421) internal successors, (221), 19 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:44:03,856 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:03,856 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:44:03,856 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:44:03,856 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:44:03,857 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:44:03,857 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:04,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:04,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:44:04,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:44:04,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:44:04,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:44:04,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-18 01:44:04,501 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2022-11-18 01:44:04,695 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable57 [2022-11-18 01:44:04,695 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)] === [2022-11-18 01:44:04,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:44:04,696 INFO L85 PathProgramCache]: Analyzing trace with hash -1810684257, now seen corresponding path program 1 times [2022-11-18 01:44:04,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:44:04,696 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [136174660] [2022-11-18 01:44:04,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:44:04,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:44:04,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:44:05,232 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 217 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 01:44:05,232 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:44:05,233 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [136174660] [2022-11-18 01:44:05,233 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [136174660] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 01:44:05,233 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [653236654] [2022-11-18 01:44:05,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:44:05,233 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:44:05,233 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 [2022-11-18 01:44:05,235 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 01:44:05,255 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2022-11-18 01:44:05,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:44:05,561 INFO L263 TraceCheckSpWp]: Trace formula consists of 490 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-18 01:44:05,565 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 01:44:05,699 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 217 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 01:44:05,699 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 01:44:06,106 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 217 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 01:44:06,106 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [653236654] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 01:44:06,106 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 01:44:06,106 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 34 [2022-11-18 01:44:06,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1919238722] [2022-11-18 01:44:06,107 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 01:44:06,107 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-11-18 01:44:06,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:44:06,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-11-18 01:44:06,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2022-11-18 01:44:06,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:06,109 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:44:06,110 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 7.9411764705882355) internal successors, (270), 34 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:44:06,110 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:06,110 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:44:06,110 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:44:06,110 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:44:06,110 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:44:06,110 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-11-18 01:44:06,110 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:06,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:06,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:44:06,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:44:06,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:44:06,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:44:06,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-18 01:44:06,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-11-18 01:44:06,646 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Forceful destruction successful, exit code 0 [2022-11-18 01:44:06,846 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58,29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:44:06,846 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)] === [2022-11-18 01:44:06,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:44:06,846 INFO L85 PathProgramCache]: Analyzing trace with hash 562257962, now seen corresponding path program 1 times [2022-11-18 01:44:06,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:44:06,847 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1542623870] [2022-11-18 01:44:06,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:44:06,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:44:06,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 01:44:06,880 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 01:44:06,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 01:44:06,968 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 01:44:06,968 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-18 01:44:06,969 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 7 remaining) [2022-11-18 01:44:06,969 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 7 remaining) [2022-11-18 01:44:06,969 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 7 remaining) [2022-11-18 01:44:06,969 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 7 remaining) [2022-11-18 01:44:06,970 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 7 remaining) [2022-11-18 01:44:06,970 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (1 of 7 remaining) [2022-11-18 01:44:06,970 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK (0 of 7 remaining) [2022-11-18 01:44:06,970 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2022-11-18 01:44:06,978 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 01:44:06,978 WARN L233 ceAbstractionStarter]: 9 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-18 01:44:06,979 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 10 thread instances. [2022-11-18 01:44:07,026 INFO L144 ThreadInstanceAdder]: Constructed 10 joinOtherThreadTransitions. [2022-11-18 01:44:07,031 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 01:44:07,031 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-11-18 01:44:07,032 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 [2022-11-18 01:44:07,033 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-11-18 01:44:07,039 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-11-18 01:44:07,040 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2022-11-18 01:44:07,040 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;@38e98ff3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 01:44:07,040 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-11-18 01:44:07,062 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (30)] Waiting until timeout for monitored process [2022-11-18 01:44:07,089 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)] === [2022-11-18 01:44:07,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:44:07,090 INFO L85 PathProgramCache]: Analyzing trace with hash -52670390, now seen corresponding path program 1 times [2022-11-18 01:44:07,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:44:07,090 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1769671392] [2022-11-18 01:44:07,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:44:07,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:44:07,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:44:07,114 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:44:07,115 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:44:07,115 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1769671392] [2022-11-18 01:44:07,115 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1769671392] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 01:44:07,115 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 01:44:07,116 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 01:44:07,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [215023057] [2022-11-18 01:44:07,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 01:44:07,116 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-18 01:44:07,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:44:07,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-18 01:44:07,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-18 01:44:07,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:07,119 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:44:07,119 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 27.5) internal successors, (55), 2 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:44:07,119 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:07,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:07,122 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2022-11-18 01:44:07,122 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)] === [2022-11-18 01:44:07,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:44:07,123 INFO L85 PathProgramCache]: Analyzing trace with hash 1454881419, now seen corresponding path program 1 times [2022-11-18 01:44:07,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:44:07,123 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [32786233] [2022-11-18 01:44:07,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:44:07,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:44:07,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:44:07,164 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:44:07,164 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:44:07,165 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [32786233] [2022-11-18 01:44:07,165 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [32786233] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 01:44:07,165 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 01:44:07,165 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 01:44:07,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [643195679] [2022-11-18 01:44:07,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 01:44:07,166 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 01:44:07,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:44:07,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 01:44:07,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 01:44:07,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:07,168 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:44:07,168 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:44:07,169 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:07,169 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:07,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:07,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:44:07,390 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2022-11-18 01:44:07,391 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)] === [2022-11-18 01:44:07,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:44:07,391 INFO L85 PathProgramCache]: Analyzing trace with hash 1345143540, now seen corresponding path program 1 times [2022-11-18 01:44:07,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:44:07,392 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [209262221] [2022-11-18 01:44:07,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:44:07,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:44:07,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:44:07,458 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:44:07,458 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:44:07,459 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [209262221] [2022-11-18 01:44:07,459 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [209262221] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 01:44:07,459 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [464753438] [2022-11-18 01:44:07,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:44:07,459 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:44:07,460 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 [2022-11-18 01:44:07,467 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 01:44:07,473 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2022-11-18 01:44:07,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:44:07,721 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 01:44:07,722 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 01:44:07,749 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:44:07,749 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 01:44:07,790 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:44:07,790 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [464753438] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 01:44:07,790 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 01:44:07,791 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-11-18 01:44:07,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226291256] [2022-11-18 01:44:07,791 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 01:44:07,791 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-18 01:44:07,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:44:07,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-18 01:44:07,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-18 01:44:07,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:07,793 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:44:07,794 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.7) internal successors, (87), 10 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:44:07,794 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:07,794 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:44:07,794 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:07,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:07,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:44:07,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:44:07,962 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Forceful destruction successful, exit code 0 [2022-11-18 01:44:08,160 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62,31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:44:08,160 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)] === [2022-11-18 01:44:08,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:44:08,161 INFO L85 PathProgramCache]: Analyzing trace with hash -1805711031, now seen corresponding path program 1 times [2022-11-18 01:44:08,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:44:08,161 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [388185664] [2022-11-18 01:44:08,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:44:08,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:44:08,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:44:08,270 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-18 01:44:08,271 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:44:08,271 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [388185664] [2022-11-18 01:44:08,271 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [388185664] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 01:44:08,271 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 01:44:08,271 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 01:44:08,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454938342] [2022-11-18 01:44:08,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 01:44:08,272 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 01:44:08,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:44:08,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 01:44:08,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 01:44:08,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:08,274 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:44:08,274 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:44:08,274 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:08,275 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:44:08,275 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:44:08,275 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:08,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:08,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:44:08,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:44:08,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 01:44:08,392 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2022-11-18 01:44:08,393 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)] === [2022-11-18 01:44:08,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:44:08,393 INFO L85 PathProgramCache]: Analyzing trace with hash -1347094062, now seen corresponding path program 1 times [2022-11-18 01:44:08,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:44:08,394 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [190363463] [2022-11-18 01:44:08,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:44:08,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:44:08,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:44:08,448 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-18 01:44:08,449 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:44:08,449 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [190363463] [2022-11-18 01:44:08,449 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [190363463] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 01:44:08,449 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 01:44:08,450 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 01:44:08,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1854721598] [2022-11-18 01:44:08,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 01:44:08,450 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 01:44:08,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:44:08,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 01:44:08,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 01:44:08,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:08,452 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:44:08,453 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:44:08,453 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:08,453 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:44:08,453 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:44:08,453 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-11-18 01:44:08,454 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:08,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:08,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:44:08,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:44:08,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:44:08,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:44:08,678 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2022-11-18 01:44:08,679 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)] === [2022-11-18 01:44:08,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:44:08,679 INFO L85 PathProgramCache]: Analyzing trace with hash 89493440, now seen corresponding path program 1 times [2022-11-18 01:44:08,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:44:08,680 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1354650507] [2022-11-18 01:44:08,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:44:08,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:44:08,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:44:08,838 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-18 01:44:08,838 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:44:08,839 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1354650507] [2022-11-18 01:44:08,839 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1354650507] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 01:44:08,839 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [217622308] [2022-11-18 01:44:08,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:44:08,839 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:44:08,840 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 [2022-11-18 01:44:08,841 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 01:44:08,859 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2022-11-18 01:44:09,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:44:09,112 INFO L263 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-18 01:44:09,114 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 01:44:09,223 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 01:44:09,223 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 01:44:09,376 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 01:44:09,376 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [217622308] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 01:44:09,376 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 01:44:09,376 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 9, 9] total 19 [2022-11-18 01:44:09,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2033150862] [2022-11-18 01:44:09,377 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 01:44:09,377 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-18 01:44:09,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:44:09,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-18 01:44:09,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=263, Unknown=0, NotChecked=0, Total=342 [2022-11-18 01:44:09,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:09,379 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:44:09,379 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 11.631578947368421) internal successors, (221), 19 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:44:09,379 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:09,379 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:44:09,379 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:44:09,379 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:44:09,380 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:44:09,380 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:10,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:10,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:44:10,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:44:10,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:44:10,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:44:10,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-18 01:44:10,095 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Forceful destruction successful, exit code 0 [2022-11-18 01:44:10,294 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65,32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:44:10,295 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)] === [2022-11-18 01:44:10,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:44:10,295 INFO L85 PathProgramCache]: Analyzing trace with hash 1790344891, now seen corresponding path program 1 times [2022-11-18 01:44:10,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:44:10,295 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1408180608] [2022-11-18 01:44:10,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:44:10,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:44:10,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:44:10,730 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 217 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 01:44:10,731 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:44:10,731 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1408180608] [2022-11-18 01:44:10,731 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1408180608] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 01:44:10,731 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [84751012] [2022-11-18 01:44:10,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:44:10,731 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:44:10,732 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 [2022-11-18 01:44:10,733 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 01:44:10,755 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2022-11-18 01:44:11,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:44:11,142 INFO L263 TraceCheckSpWp]: Trace formula consists of 490 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-18 01:44:11,145 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 01:44:11,288 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 217 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 01:44:11,288 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 01:44:11,676 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 217 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 01:44:11,676 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [84751012] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 01:44:11,676 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 01:44:11,676 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 34 [2022-11-18 01:44:11,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [900369767] [2022-11-18 01:44:11,677 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 01:44:11,678 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-11-18 01:44:11,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:44:11,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-11-18 01:44:11,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2022-11-18 01:44:11,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:11,680 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:44:11,681 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 7.9411764705882355) internal successors, (270), 34 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:44:11,681 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:11,681 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:44:11,681 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:44:11,681 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:44:11,682 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:44:11,682 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-11-18 01:44:11,682 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:12,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:12,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:44:12,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:44:12,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:44:12,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:44:12,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-18 01:44:12,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-11-18 01:44:12,361 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Forceful destruction successful, exit code 0 [2022-11-18 01:44:12,554 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable66 [2022-11-18 01:44:12,555 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)] === [2022-11-18 01:44:12,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:44:12,555 INFO L85 PathProgramCache]: Analyzing trace with hash 865033868, now seen corresponding path program 1 times [2022-11-18 01:44:12,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:44:12,555 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [645934289] [2022-11-18 01:44:12,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:44:12,556 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:44:12,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 01:44:12,589 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 01:44:12,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 01:44:12,638 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 01:44:12,639 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-18 01:44:12,639 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 7 remaining) [2022-11-18 01:44:12,639 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 7 remaining) [2022-11-18 01:44:12,639 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 7 remaining) [2022-11-18 01:44:12,640 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 7 remaining) [2022-11-18 01:44:12,640 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 7 remaining) [2022-11-18 01:44:12,640 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (1 of 7 remaining) [2022-11-18 01:44:12,640 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK (0 of 7 remaining) [2022-11-18 01:44:12,641 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2022-11-18 01:44:12,645 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 01:44:12,645 WARN L233 ceAbstractionStarter]: 10 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-18 01:44:12,646 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 11 thread instances. [2022-11-18 01:44:12,684 INFO L144 ThreadInstanceAdder]: Constructed 11 joinOtherThreadTransitions. [2022-11-18 01:44:12,687 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 01:44:12,687 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-11-18 01:44:12,688 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 [2022-11-18 01:44:12,689 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-11-18 01:44:12,697 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-11-18 01:44:12,698 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2022-11-18 01:44:12,698 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;@38e98ff3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 01:44:12,698 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-11-18 01:44:12,703 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (34)] Waiting until timeout for monitored process [2022-11-18 01:44:12,733 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)] === [2022-11-18 01:44:12,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:44:12,733 INFO L85 PathProgramCache]: Analyzing trace with hash -1476695390, now seen corresponding path program 1 times [2022-11-18 01:44:12,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:44:12,733 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1548209244] [2022-11-18 01:44:12,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:44:12,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:44:12,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:44:12,749 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:44:12,749 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:44:12,749 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1548209244] [2022-11-18 01:44:12,750 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1548209244] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 01:44:12,750 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 01:44:12,750 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 01:44:12,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1383803384] [2022-11-18 01:44:12,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 01:44:12,750 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-18 01:44:12,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:44:12,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-18 01:44:12,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-18 01:44:12,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:12,752 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:44:12,752 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 27.5) internal successors, (55), 2 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:44:12,752 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:12,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:12,754 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2022-11-18 01:44:12,754 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)] === [2022-11-18 01:44:12,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:44:12,754 INFO L85 PathProgramCache]: Analyzing trace with hash 30856419, now seen corresponding path program 1 times [2022-11-18 01:44:12,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:44:12,755 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1101872622] [2022-11-18 01:44:12,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:44:12,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:44:12,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:44:12,783 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:44:12,783 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:44:12,783 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1101872622] [2022-11-18 01:44:12,784 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1101872622] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 01:44:12,784 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 01:44:12,784 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 01:44:12,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [213283014] [2022-11-18 01:44:12,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 01:44:12,785 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 01:44:12,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:44:12,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 01:44:12,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 01:44:12,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:12,786 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:44:12,786 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:44:12,786 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:12,786 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:12,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:12,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:44:12,982 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2022-11-18 01:44:12,982 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)] === [2022-11-18 01:44:12,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:44:12,983 INFO L85 PathProgramCache]: Analyzing trace with hash 1687863400, now seen corresponding path program 1 times [2022-11-18 01:44:12,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:44:12,984 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1973486909] [2022-11-18 01:44:12,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:44:12,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:44:12,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:44:13,047 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:44:13,047 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:44:13,048 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1973486909] [2022-11-18 01:44:13,048 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1973486909] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 01:44:13,048 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1539092086] [2022-11-18 01:44:13,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:44:13,048 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:44:13,049 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 [2022-11-18 01:44:13,055 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 01:44:13,082 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2022-11-18 01:44:13,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:44:13,360 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 01:44:13,361 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 01:44:13,392 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:44:13,392 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 01:44:13,437 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:44:13,437 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1539092086] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 01:44:13,437 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 01:44:13,438 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-11-18 01:44:13,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220937406] [2022-11-18 01:44:13,438 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 01:44:13,438 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-18 01:44:13,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:44:13,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-18 01:44:13,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-18 01:44:13,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:13,440 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:44:13,440 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.7) internal successors, (87), 10 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:44:13,440 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:13,441 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:44:13,441 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:13,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:13,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:44:13,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:44:13,656 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Forceful destruction successful, exit code 0 [2022-11-18 01:44:13,851 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70,35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:44:13,852 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)] === [2022-11-18 01:44:13,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:44:13,852 INFO L85 PathProgramCache]: Analyzing trace with hash 1085830133, now seen corresponding path program 1 times [2022-11-18 01:44:13,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:44:13,853 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [3836688] [2022-11-18 01:44:13,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:44:13,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:44:13,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:44:13,970 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-18 01:44:13,970 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:44:13,971 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [3836688] [2022-11-18 01:44:13,971 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [3836688] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 01:44:13,971 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 01:44:13,971 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 01:44:13,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950141213] [2022-11-18 01:44:13,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 01:44:13,972 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 01:44:13,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:44:13,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 01:44:13,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 01:44:13,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:13,973 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:44:13,974 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:44:13,974 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:13,974 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:44:13,974 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:44:13,974 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:14,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:14,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:44:14,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:44:14,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 01:44:14,096 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2022-11-18 01:44:14,096 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)] === [2022-11-18 01:44:14,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:44:14,096 INFO L85 PathProgramCache]: Analyzing trace with hash 1389672446, now seen corresponding path program 1 times [2022-11-18 01:44:14,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:44:14,097 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [790356070] [2022-11-18 01:44:14,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:44:14,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:44:14,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:44:14,150 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-18 01:44:14,151 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:44:14,151 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [790356070] [2022-11-18 01:44:14,151 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [790356070] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 01:44:14,152 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 01:44:14,152 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 01:44:14,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [610949208] [2022-11-18 01:44:14,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 01:44:14,153 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 01:44:14,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:44:14,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 01:44:14,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 01:44:14,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:14,154 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:44:14,154 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:44:14,155 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:14,155 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:44:14,155 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:44:14,155 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-11-18 01:44:14,155 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:14,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:14,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:44:14,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:44:14,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:44:14,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:44:14,361 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2022-11-18 01:44:14,361 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)] === [2022-11-18 01:44:14,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:44:14,362 INFO L85 PathProgramCache]: Analyzing trace with hash 404340207, now seen corresponding path program 1 times [2022-11-18 01:44:14,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:44:14,362 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1426034790] [2022-11-18 01:44:14,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:44:14,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:44:14,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:44:14,457 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-18 01:44:14,458 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:44:14,458 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1426034790] [2022-11-18 01:44:14,458 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1426034790] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 01:44:14,458 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1193958980] [2022-11-18 01:44:14,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:44:14,459 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:44:14,459 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 [2022-11-18 01:44:14,464 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 01:44:14,480 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2022-11-18 01:44:14,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:44:14,738 INFO L263 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-18 01:44:14,740 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 01:44:14,869 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 01:44:14,869 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 01:44:15,019 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 01:44:15,019 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1193958980] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 01:44:15,019 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 01:44:15,019 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 9, 9] total 19 [2022-11-18 01:44:15,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1238248864] [2022-11-18 01:44:15,020 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 01:44:15,020 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-18 01:44:15,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:44:15,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-18 01:44:15,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=263, Unknown=0, NotChecked=0, Total=342 [2022-11-18 01:44:15,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:15,022 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:44:15,022 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 11.631578947368421) internal successors, (221), 19 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:44:15,022 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:15,022 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:44:15,022 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:44:15,022 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:44:15,022 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:44:15,022 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:15,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:15,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:44:15,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:44:15,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:44:15,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:44:15,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-18 01:44:15,769 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Forceful destruction successful, exit code 0 [2022-11-18 01:44:15,963 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73,36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:44:15,963 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)] === [2022-11-18 01:44:15,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:44:15,963 INFO L85 PathProgramCache]: Analyzing trace with hash -251388713, now seen corresponding path program 1 times [2022-11-18 01:44:15,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:44:15,964 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633484665] [2022-11-18 01:44:15,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:44:15,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:44:16,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:44:16,487 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 217 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 01:44:16,487 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:44:16,487 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [633484665] [2022-11-18 01:44:16,487 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [633484665] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 01:44:16,487 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1778269657] [2022-11-18 01:44:16,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:44:16,487 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:44:16,487 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 [2022-11-18 01:44:16,489 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 01:44:16,492 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Waiting until timeout for monitored process [2022-11-18 01:44:16,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:44:16,797 INFO L263 TraceCheckSpWp]: Trace formula consists of 490 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-18 01:44:16,799 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 01:44:16,936 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 217 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 01:44:16,936 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 01:44:17,334 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 217 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 01:44:17,335 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1778269657] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 01:44:17,335 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 01:44:17,335 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 34 [2022-11-18 01:44:17,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1253649537] [2022-11-18 01:44:17,336 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 01:44:17,338 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-11-18 01:44:17,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:44:17,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-11-18 01:44:17,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2022-11-18 01:44:17,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:17,340 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:44:17,340 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 7.9411764705882355) internal successors, (270), 34 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:44:17,340 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:17,341 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:44:17,341 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:44:17,341 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:44:17,341 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:44:17,341 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-11-18 01:44:17,341 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:18,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:18,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:44:18,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:44:18,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:44:18,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:44:18,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-18 01:44:18,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-11-18 01:44:18,055 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Ended with exit code 0 [2022-11-18 01:44:18,249 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74,37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:44:18,250 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)] === [2022-11-18 01:44:18,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:44:18,250 INFO L85 PathProgramCache]: Analyzing trace with hash 1662960807, now seen corresponding path program 1 times [2022-11-18 01:44:18,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:44:18,250 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [8431662] [2022-11-18 01:44:18,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:44:18,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:44:18,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 01:44:18,286 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 01:44:18,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 01:44:18,342 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 01:44:18,343 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-18 01:44:18,343 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 7 remaining) [2022-11-18 01:44:18,343 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 7 remaining) [2022-11-18 01:44:18,343 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 7 remaining) [2022-11-18 01:44:18,344 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 7 remaining) [2022-11-18 01:44:18,344 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 7 remaining) [2022-11-18 01:44:18,344 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (1 of 7 remaining) [2022-11-18 01:44:18,344 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK (0 of 7 remaining) [2022-11-18 01:44:18,344 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75 [2022-11-18 01:44:18,354 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 01:44:18,354 WARN L233 ceAbstractionStarter]: 11 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-18 01:44:18,354 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 12 thread instances. [2022-11-18 01:44:18,390 INFO L144 ThreadInstanceAdder]: Constructed 12 joinOtherThreadTransitions. [2022-11-18 01:44:18,394 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 01:44:18,394 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-11-18 01:44:18,394 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 [2022-11-18 01:44:18,395 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-11-18 01:44:18,411 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-11-18 01:44:18,411 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2022-11-18 01:44:18,411 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;@38e98ff3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 01:44:18,412 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-11-18 01:44:18,434 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (38)] Waiting until timeout for monitored process [2022-11-18 01:44:18,447 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)] === [2022-11-18 01:44:18,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:44:18,447 INFO L85 PathProgramCache]: Analyzing trace with hash 2010295610, now seen corresponding path program 1 times [2022-11-18 01:44:18,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:44:18,447 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [724027264] [2022-11-18 01:44:18,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:44:18,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:44:18,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:44:18,498 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:44:18,504 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:44:18,504 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [724027264] [2022-11-18 01:44:18,504 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [724027264] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 01:44:18,504 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 01:44:18,505 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 01:44:18,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2144610905] [2022-11-18 01:44:18,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 01:44:18,505 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-18 01:44:18,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:44:18,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-18 01:44:18,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-18 01:44:18,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:18,506 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:44:18,507 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 27.5) internal successors, (55), 2 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:44:18,507 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:18,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:18,509 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76 [2022-11-18 01:44:18,509 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)] === [2022-11-18 01:44:18,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:44:18,509 INFO L85 PathProgramCache]: Analyzing trace with hash -777119877, now seen corresponding path program 1 times [2022-11-18 01:44:18,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:44:18,510 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2043846114] [2022-11-18 01:44:18,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:44:18,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:44:18,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:44:18,542 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:44:18,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:44:18,543 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2043846114] [2022-11-18 01:44:18,543 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2043846114] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 01:44:18,543 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 01:44:18,543 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 01:44:18,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1040727163] [2022-11-18 01:44:18,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 01:44:18,544 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 01:44:18,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:44:18,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 01:44:18,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 01:44:18,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:18,545 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:44:18,545 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:44:18,546 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:18,546 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:18,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:18,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:44:18,754 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77 [2022-11-18 01:44:18,755 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)] === [2022-11-18 01:44:18,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:44:18,755 INFO L85 PathProgramCache]: Analyzing trace with hash -754500068, now seen corresponding path program 1 times [2022-11-18 01:44:18,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:44:18,755 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [656608462] [2022-11-18 01:44:18,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:44:18,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:44:18,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:44:18,815 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:44:18,815 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:44:18,815 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [656608462] [2022-11-18 01:44:18,816 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [656608462] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 01:44:18,816 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [443086532] [2022-11-18 01:44:18,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:44:18,816 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:44:18,816 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 [2022-11-18 01:44:18,820 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 01:44:18,842 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Waiting until timeout for monitored process [2022-11-18 01:44:19,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:44:19,162 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 01:44:19,163 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 01:44:19,202 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:44:19,202 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 01:44:19,243 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:44:19,244 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [443086532] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 01:44:19,245 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 01:44:19,245 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-11-18 01:44:19,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [495113897] [2022-11-18 01:44:19,245 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 01:44:19,246 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-18 01:44:19,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:44:19,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-18 01:44:19,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-18 01:44:19,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:19,251 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:44:19,251 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.7) internal successors, (87), 10 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:44:19,251 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:19,251 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:44:19,251 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:19,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:19,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:44:19,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:44:19,410 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Ended with exit code 0 [2022-11-18 01:44:19,605 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable78 [2022-11-18 01:44:19,605 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)] === [2022-11-18 01:44:19,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:44:19,606 INFO L85 PathProgramCache]: Analyzing trace with hash -116093215, now seen corresponding path program 1 times [2022-11-18 01:44:19,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:44:19,606 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1279019694] [2022-11-18 01:44:19,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:44:19,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:44:19,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:44:19,719 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-18 01:44:19,719 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:44:19,719 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1279019694] [2022-11-18 01:44:19,719 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1279019694] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 01:44:19,719 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 01:44:19,720 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 01:44:19,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1250174636] [2022-11-18 01:44:19,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 01:44:19,720 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 01:44:19,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:44:19,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 01:44:19,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 01:44:19,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:19,722 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:44:19,722 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:44:19,722 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:19,723 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:44:19,723 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:44:19,723 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:19,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:19,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:44:19,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:44:19,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 01:44:19,863 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79 [2022-11-18 01:44:19,863 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)] === [2022-11-18 01:44:19,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:44:19,864 INFO L85 PathProgramCache]: Analyzing trace with hash -1037699542, now seen corresponding path program 1 times [2022-11-18 01:44:19,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:44:19,864 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1065328861] [2022-11-18 01:44:19,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:44:19,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:44:19,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:44:19,915 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-18 01:44:19,916 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:44:19,916 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1065328861] [2022-11-18 01:44:19,916 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1065328861] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 01:44:19,916 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 01:44:19,917 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 01:44:19,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563732196] [2022-11-18 01:44:19,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 01:44:19,917 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 01:44:19,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:44:19,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 01:44:19,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 01:44:19,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:19,919 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:44:19,919 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:44:19,919 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:19,919 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:44:19,920 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:44:19,920 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-11-18 01:44:19,920 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:20,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:20,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:44:20,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:44:20,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:44:20,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:44:20,162 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80 [2022-11-18 01:44:20,162 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)] === [2022-11-18 01:44:20,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:44:20,163 INFO L85 PathProgramCache]: Analyzing trace with hash 1381970014, now seen corresponding path program 1 times [2022-11-18 01:44:20,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:44:20,163 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2049571600] [2022-11-18 01:44:20,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:44:20,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:44:20,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:44:20,255 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-18 01:44:20,255 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:44:20,256 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2049571600] [2022-11-18 01:44:20,256 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2049571600] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 01:44:20,256 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [323371186] [2022-11-18 01:44:20,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:44:20,256 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:44:20,257 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 [2022-11-18 01:44:20,258 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 01:44:20,283 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Waiting until timeout for monitored process [2022-11-18 01:44:20,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:44:20,633 INFO L263 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-18 01:44:20,639 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 01:44:20,764 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 01:44:20,764 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 01:44:20,966 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 01:44:20,967 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [323371186] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 01:44:20,967 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 01:44:20,967 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 9, 9] total 19 [2022-11-18 01:44:20,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1006935264] [2022-11-18 01:44:20,967 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 01:44:20,968 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-18 01:44:20,968 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:44:20,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-18 01:44:20,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=263, Unknown=0, NotChecked=0, Total=342 [2022-11-18 01:44:20,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:20,969 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:44:20,969 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 11.631578947368421) internal successors, (221), 19 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:44:20,969 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:20,969 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:44:20,969 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:44:20,969 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:44:20,970 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:44:20,970 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:21,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:21,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:44:21,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:44:21,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:44:21,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:44:21,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-18 01:44:21,622 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Forceful destruction successful, exit code 0 [2022-11-18 01:44:21,814 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable81 [2022-11-18 01:44:21,815 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)] === [2022-11-18 01:44:21,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:44:21,815 INFO L85 PathProgramCache]: Analyzing trace with hash -182238989, now seen corresponding path program 1 times [2022-11-18 01:44:21,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:44:21,815 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [474551954] [2022-11-18 01:44:21,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:44:21,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:44:21,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:44:22,260 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 217 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 01:44:22,260 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:44:22,260 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [474551954] [2022-11-18 01:44:22,260 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [474551954] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 01:44:22,260 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1203461913] [2022-11-18 01:44:22,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:44:22,261 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:44:22,261 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 [2022-11-18 01:44:22,262 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 01:44:22,268 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Waiting until timeout for monitored process [2022-11-18 01:44:22,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:44:22,682 INFO L263 TraceCheckSpWp]: Trace formula consists of 490 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-18 01:44:22,684 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 01:44:22,839 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 217 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 01:44:22,840 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 01:44:23,271 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 217 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 01:44:23,271 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1203461913] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 01:44:23,271 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 01:44:23,272 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 34 [2022-11-18 01:44:23,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [526285828] [2022-11-18 01:44:23,272 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 01:44:23,272 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-11-18 01:44:23,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:44:23,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-11-18 01:44:23,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2022-11-18 01:44:23,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:23,274 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:44:23,274 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 7.9411764705882355) internal successors, (270), 34 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:44:23,275 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:23,275 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:44:23,275 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:44:23,275 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:44:23,275 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:44:23,275 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-11-18 01:44:23,275 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:24,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:24,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:44:24,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:44:24,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:44:24,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:44:24,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-18 01:44:24,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-11-18 01:44:24,287 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Forceful destruction successful, exit code 0 [2022-11-18 01:44:24,484 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82,41 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:44:24,485 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)] === [2022-11-18 01:44:24,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:44:24,486 INFO L85 PathProgramCache]: Analyzing trace with hash 2102879291, now seen corresponding path program 1 times [2022-11-18 01:44:24,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:44:24,487 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [306105773] [2022-11-18 01:44:24,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:44:24,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:44:24,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 01:44:24,525 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 01:44:24,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 01:44:24,607 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 01:44:24,607 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-18 01:44:24,608 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 7 remaining) [2022-11-18 01:44:24,608 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 7 remaining) [2022-11-18 01:44:24,609 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 7 remaining) [2022-11-18 01:44:24,609 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 7 remaining) [2022-11-18 01:44:24,609 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 7 remaining) [2022-11-18 01:44:24,609 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (1 of 7 remaining) [2022-11-18 01:44:24,609 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK (0 of 7 remaining) [2022-11-18 01:44:24,610 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83 [2022-11-18 01:44:24,616 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 01:44:24,616 WARN L233 ceAbstractionStarter]: 12 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-18 01:44:24,617 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 13 thread instances. [2022-11-18 01:44:24,662 INFO L144 ThreadInstanceAdder]: Constructed 13 joinOtherThreadTransitions. [2022-11-18 01:44:24,666 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 01:44:24,667 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-11-18 01:44:24,667 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 [2022-11-18 01:44:24,668 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-11-18 01:44:24,678 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-11-18 01:44:24,678 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2022-11-18 01:44:24,679 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;@38e98ff3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 01:44:24,679 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-11-18 01:44:24,703 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (42)] Waiting until timeout for monitored process [2022-11-18 01:44:24,717 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)] === [2022-11-18 01:44:24,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:44:24,717 INFO L85 PathProgramCache]: Analyzing trace with hash 1818368018, now seen corresponding path program 1 times [2022-11-18 01:44:24,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:44:24,717 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1619177417] [2022-11-18 01:44:24,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:44:24,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:44:24,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:44:24,738 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:44:24,739 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:44:24,739 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1619177417] [2022-11-18 01:44:24,739 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1619177417] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 01:44:24,739 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 01:44:24,739 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 01:44:24,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1667200675] [2022-11-18 01:44:24,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 01:44:24,740 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-18 01:44:24,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:44:24,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-18 01:44:24,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-18 01:44:24,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:24,741 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:44:24,742 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 27.5) internal successors, (55), 2 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:44:24,742 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:24,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:24,744 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84 [2022-11-18 01:44:24,744 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)] === [2022-11-18 01:44:24,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:44:24,745 INFO L85 PathProgramCache]: Analyzing trace with hash -969047469, now seen corresponding path program 1 times [2022-11-18 01:44:24,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:44:24,745 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [802000972] [2022-11-18 01:44:24,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:44:24,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:44:24,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:44:24,786 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:44:24,787 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:44:24,787 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [802000972] [2022-11-18 01:44:24,787 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [802000972] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 01:44:24,787 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 01:44:24,788 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 01:44:24,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952388314] [2022-11-18 01:44:24,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 01:44:24,788 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 01:44:24,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:44:24,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 01:44:24,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 01:44:24,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:24,790 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:44:24,790 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:44:24,790 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:24,790 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:25,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:25,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:44:25,032 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85 [2022-11-18 01:44:25,033 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)] === [2022-11-18 01:44:25,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:44:25,034 INFO L85 PathProgramCache]: Analyzing trace with hash -1686979568, now seen corresponding path program 1 times [2022-11-18 01:44:25,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:44:25,034 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [174279000] [2022-11-18 01:44:25,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:44:25,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:44:25,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:44:25,094 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:44:25,095 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:44:25,095 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [174279000] [2022-11-18 01:44:25,095 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [174279000] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 01:44:25,095 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [280499695] [2022-11-18 01:44:25,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:44:25,096 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:44:25,096 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 [2022-11-18 01:44:25,100 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 01:44:25,123 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Waiting until timeout for monitored process [2022-11-18 01:44:25,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:44:25,423 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 01:44:25,425 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 01:44:25,451 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:44:25,451 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 01:44:25,504 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:44:25,504 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [280499695] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 01:44:25,504 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 01:44:25,505 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-11-18 01:44:25,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [526830052] [2022-11-18 01:44:25,505 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 01:44:25,506 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-18 01:44:25,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:44:25,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-18 01:44:25,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-18 01:44:25,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:25,507 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:44:25,508 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.7) internal successors, (87), 10 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:44:25,508 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:25,508 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:44:25,508 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:25,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:25,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:44:25,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:44:25,696 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Ended with exit code 0 [2022-11-18 01:44:25,891 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 43 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable86 [2022-11-18 01:44:25,891 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)] === [2022-11-18 01:44:25,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:44:25,892 INFO L85 PathProgramCache]: Analyzing trace with hash -1116513779, now seen corresponding path program 1 times [2022-11-18 01:44:25,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:44:25,892 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [581204802] [2022-11-18 01:44:25,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:44:25,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:44:25,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:44:26,007 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-18 01:44:26,007 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:44:26,007 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [581204802] [2022-11-18 01:44:26,007 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [581204802] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 01:44:26,008 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 01:44:26,008 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 01:44:26,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1513352342] [2022-11-18 01:44:26,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 01:44:26,008 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 01:44:26,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:44:26,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 01:44:26,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 01:44:26,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:26,010 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:44:26,010 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:44:26,010 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:26,011 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:44:26,011 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:44:26,011 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:26,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:26,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:44:26,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:44:26,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 01:44:26,165 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable87 [2022-11-18 01:44:26,165 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)] === [2022-11-18 01:44:26,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:44:26,166 INFO L85 PathProgramCache]: Analyzing trace with hash -39275434, now seen corresponding path program 1 times [2022-11-18 01:44:26,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:44:26,166 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [425132679] [2022-11-18 01:44:26,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:44:26,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:44:26,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:44:26,219 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-18 01:44:26,220 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:44:26,220 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [425132679] [2022-11-18 01:44:26,220 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [425132679] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 01:44:26,220 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 01:44:26,220 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 01:44:26,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [130846010] [2022-11-18 01:44:26,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 01:44:26,221 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 01:44:26,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:44:26,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 01:44:26,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 01:44:26,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:26,223 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:44:26,223 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:44:26,223 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:26,223 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:44:26,224 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:44:26,224 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-11-18 01:44:26,224 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:26,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:26,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:44:26,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:44:26,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:44:26,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:44:26,569 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable88 [2022-11-18 01:44:26,570 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)] === [2022-11-18 01:44:26,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:44:26,570 INFO L85 PathProgramCache]: Analyzing trace with hash 1489980429, now seen corresponding path program 1 times [2022-11-18 01:44:26,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:44:26,571 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [599022031] [2022-11-18 01:44:26,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:44:26,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:44:26,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:44:26,713 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-18 01:44:26,713 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:44:26,714 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [599022031] [2022-11-18 01:44:26,714 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [599022031] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 01:44:26,714 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [669418455] [2022-11-18 01:44:26,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:44:26,715 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:44:26,715 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 [2022-11-18 01:44:26,716 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 01:44:26,731 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Waiting until timeout for monitored process [2022-11-18 01:44:27,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:44:27,169 INFO L263 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-18 01:44:27,172 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 01:44:27,300 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 01:44:27,301 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 01:44:27,464 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 01:44:27,464 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [669418455] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 01:44:27,464 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 01:44:27,464 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 9, 9] total 19 [2022-11-18 01:44:27,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654203358] [2022-11-18 01:44:27,466 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 01:44:27,466 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-18 01:44:27,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:44:27,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-18 01:44:27,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=263, Unknown=0, NotChecked=0, Total=342 [2022-11-18 01:44:27,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:27,468 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:44:27,468 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 11.631578947368421) internal successors, (221), 19 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:44:27,468 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:27,468 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:44:27,468 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:44:27,468 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:44:27,468 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:44:27,469 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:28,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:28,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:44:28,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:44:28,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:44:28,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:44:28,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-18 01:44:28,140 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Ended with exit code 0 [2022-11-18 01:44:28,337 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 44 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable89 [2022-11-18 01:44:28,337 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)] === [2022-11-18 01:44:28,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:44:28,337 INFO L85 PathProgramCache]: Analyzing trace with hash 1970134031, now seen corresponding path program 1 times [2022-11-18 01:44:28,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:44:28,338 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [599739617] [2022-11-18 01:44:28,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:44:28,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:44:28,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:44:28,725 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 217 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 01:44:28,725 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:44:28,725 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [599739617] [2022-11-18 01:44:28,725 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [599739617] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 01:44:28,725 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [414488287] [2022-11-18 01:44:28,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:44:28,726 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:44:28,726 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 [2022-11-18 01:44:28,727 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 01:44:28,731 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Waiting until timeout for monitored process [2022-11-18 01:44:29,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:44:29,118 INFO L263 TraceCheckSpWp]: Trace formula consists of 490 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-18 01:44:29,121 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 01:44:29,297 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 217 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 01:44:29,297 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 01:44:29,729 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 217 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 01:44:29,729 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [414488287] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 01:44:29,729 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 01:44:29,730 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 34 [2022-11-18 01:44:29,730 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937471309] [2022-11-18 01:44:29,730 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 01:44:29,731 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-11-18 01:44:29,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:44:29,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-11-18 01:44:29,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2022-11-18 01:44:29,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:29,733 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:44:29,733 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 7.9411764705882355) internal successors, (270), 34 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:44:29,733 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:29,733 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:44:29,734 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:44:29,734 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:44:29,734 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:44:29,734 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-11-18 01:44:29,734 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:30,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:30,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:44:30,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:44:30,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:44:30,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:44:30,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-18 01:44:30,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-11-18 01:44:30,702 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Forceful destruction successful, exit code 0 [2022-11-18 01:44:30,895 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90,45 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:44:30,895 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)] === [2022-11-18 01:44:30,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:44:30,896 INFO L85 PathProgramCache]: Analyzing trace with hash 1950195464, now seen corresponding path program 1 times [2022-11-18 01:44:30,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:44:30,896 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981151863] [2022-11-18 01:44:30,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:44:30,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:44:30,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 01:44:30,951 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 01:44:30,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 01:44:31,012 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 01:44:31,012 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-18 01:44:31,012 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 7 remaining) [2022-11-18 01:44:31,012 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 7 remaining) [2022-11-18 01:44:31,012 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 7 remaining) [2022-11-18 01:44:31,012 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 7 remaining) [2022-11-18 01:44:31,013 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 7 remaining) [2022-11-18 01:44:31,013 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (1 of 7 remaining) [2022-11-18 01:44:31,013 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK (0 of 7 remaining) [2022-11-18 01:44:31,013 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable91 [2022-11-18 01:44:31,020 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 01:44:31,020 WARN L233 ceAbstractionStarter]: 13 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-18 01:44:31,020 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 14 thread instances. [2022-11-18 01:44:31,068 INFO L144 ThreadInstanceAdder]: Constructed 14 joinOtherThreadTransitions. [2022-11-18 01:44:31,084 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 01:44:31,087 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-11-18 01:44:31,087 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 [2022-11-18 01:44:31,090 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-11-18 01:44:31,094 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (46)] Waiting until timeout for monitored process [2022-11-18 01:44:31,096 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-11-18 01:44:31,097 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2022-11-18 01:44:31,097 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;@38e98ff3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 01:44:31,097 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-11-18 01:44:31,120 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)] === [2022-11-18 01:44:31,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:44:31,120 INFO L85 PathProgramCache]: Analyzing trace with hash -2052478166, now seen corresponding path program 1 times [2022-11-18 01:44:31,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:44:31,121 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302420210] [2022-11-18 01:44:31,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:44:31,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:44:31,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:44:31,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:44:31,134 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:44:31,134 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1302420210] [2022-11-18 01:44:31,135 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1302420210] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 01:44:31,135 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 01:44:31,135 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 01:44:31,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [463281973] [2022-11-18 01:44:31,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 01:44:31,136 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-18 01:44:31,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:44:31,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-18 01:44:31,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-18 01:44:31,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:31,138 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:44:31,138 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 27.5) internal successors, (55), 2 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:44:31,138 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:31,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:31,140 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable92 [2022-11-18 01:44:31,140 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)] === [2022-11-18 01:44:31,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:44:31,141 INFO L85 PathProgramCache]: Analyzing trace with hash -544926357, now seen corresponding path program 1 times [2022-11-18 01:44:31,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:44:31,141 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1156044637] [2022-11-18 01:44:31,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:44:31,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:44:31,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:44:31,171 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:44:31,171 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:44:31,171 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1156044637] [2022-11-18 01:44:31,172 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1156044637] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 01:44:31,172 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 01:44:31,172 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 01:44:31,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557876008] [2022-11-18 01:44:31,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 01:44:31,173 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 01:44:31,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:44:31,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 01:44:31,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 01:44:31,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:31,174 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:44:31,174 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:44:31,174 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:31,175 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:31,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:31,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:44:31,409 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable93 [2022-11-18 01:44:31,409 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)] === [2022-11-18 01:44:31,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:44:31,410 INFO L85 PathProgramCache]: Analyzing trace with hash -1109575100, now seen corresponding path program 1 times [2022-11-18 01:44:31,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:44:31,410 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [11397754] [2022-11-18 01:44:31,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:44:31,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:44:31,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:44:31,459 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:44:31,459 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:44:31,460 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [11397754] [2022-11-18 01:44:31,460 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [11397754] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 01:44:31,460 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [139323823] [2022-11-18 01:44:31,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:44:31,460 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:44:31,460 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 [2022-11-18 01:44:31,463 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 01:44:31,464 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Waiting until timeout for monitored process [2022-11-18 01:44:31,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:44:31,794 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 01:44:31,795 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 01:44:31,819 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:44:31,819 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 01:44:31,864 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:44:31,864 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [139323823] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 01:44:31,864 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 01:44:31,865 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-11-18 01:44:31,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [32416406] [2022-11-18 01:44:31,869 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 01:44:31,870 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-18 01:44:31,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:44:31,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-18 01:44:31,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-18 01:44:31,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:31,872 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:44:31,873 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.7) internal successors, (87), 10 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:44:31,873 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:31,873 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:44:31,873 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:32,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:32,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:44:32,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:44:32,091 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Forceful destruction successful, exit code 0 [2022-11-18 01:44:32,288 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 47 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable94 [2022-11-18 01:44:32,288 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)] === [2022-11-18 01:44:32,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:44:32,289 INFO L85 PathProgramCache]: Analyzing trace with hash -1915431559, now seen corresponding path program 1 times [2022-11-18 01:44:32,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:44:32,289 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1983655110] [2022-11-18 01:44:32,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:44:32,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:44:32,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:44:32,387 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-18 01:44:32,387 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:44:32,388 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1983655110] [2022-11-18 01:44:32,388 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1983655110] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 01:44:32,388 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 01:44:32,388 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 01:44:32,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830354997] [2022-11-18 01:44:32,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 01:44:32,389 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 01:44:32,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:44:32,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 01:44:32,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 01:44:32,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:32,390 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:44:32,390 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:44:32,391 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:32,391 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:44:32,391 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:44:32,391 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:32,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:32,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:44:32,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:44:32,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 01:44:32,544 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable95 [2022-11-18 01:44:32,544 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)] === [2022-11-18 01:44:32,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:44:32,545 INFO L85 PathProgramCache]: Analyzing trace with hash 89977474, now seen corresponding path program 1 times [2022-11-18 01:44:32,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:44:32,545 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1639436767] [2022-11-18 01:44:32,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:44:32,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:44:32,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:44:32,643 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-18 01:44:32,644 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:44:32,644 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1639436767] [2022-11-18 01:44:32,644 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1639436767] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 01:44:32,644 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 01:44:32,644 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 01:44:32,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [342692775] [2022-11-18 01:44:32,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 01:44:32,645 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 01:44:32,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:44:32,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 01:44:32,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 01:44:32,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:32,646 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:44:32,647 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:44:32,647 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:32,647 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:44:32,647 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:44:32,647 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-11-18 01:44:32,648 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:32,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:32,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:44:32,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:44:32,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:44:32,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:44:32,907 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable96 [2022-11-18 01:44:32,907 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)] === [2022-11-18 01:44:32,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:44:32,908 INFO L85 PathProgramCache]: Analyzing trace with hash -1661129860, now seen corresponding path program 1 times [2022-11-18 01:44:32,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:44:32,908 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [726893302] [2022-11-18 01:44:32,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:44:32,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:44:32,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:44:33,005 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-18 01:44:33,006 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:44:33,006 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [726893302] [2022-11-18 01:44:33,006 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [726893302] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 01:44:33,006 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1535418513] [2022-11-18 01:44:33,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:44:33,007 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:44:33,007 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 [2022-11-18 01:44:33,009 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 01:44:33,026 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Waiting until timeout for monitored process [2022-11-18 01:44:33,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:44:33,460 INFO L263 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-18 01:44:33,462 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 01:44:33,569 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 01:44:33,569 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 01:44:33,707 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 01:44:33,708 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1535418513] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 01:44:33,708 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 01:44:33,708 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 9, 9] total 19 [2022-11-18 01:44:33,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [649297491] [2022-11-18 01:44:33,708 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 01:44:33,708 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-18 01:44:33,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:44:33,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-18 01:44:33,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=263, Unknown=0, NotChecked=0, Total=342 [2022-11-18 01:44:33,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:33,710 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:44:33,710 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 11.631578947368421) internal successors, (221), 19 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:44:33,710 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:33,710 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:44:33,710 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:44:33,710 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:44:33,711 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:44:33,711 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:34,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:34,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:44:34,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:44:34,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:44:34,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:44:34,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-18 01:44:34,365 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Forceful destruction successful, exit code 0 [2022-11-18 01:44:34,563 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable97,48 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:44:34,563 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)] === [2022-11-18 01:44:34,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:44:34,564 INFO L85 PathProgramCache]: Analyzing trace with hash -1577118549, now seen corresponding path program 1 times [2022-11-18 01:44:34,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:44:34,564 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1591109973] [2022-11-18 01:44:34,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:44:34,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:44:34,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:44:34,890 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 217 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 01:44:34,890 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:44:34,891 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1591109973] [2022-11-18 01:44:34,891 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1591109973] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 01:44:34,891 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1538475249] [2022-11-18 01:44:34,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:44:34,891 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:44:34,891 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 [2022-11-18 01:44:34,892 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 01:44:34,894 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Waiting until timeout for monitored process [2022-11-18 01:44:35,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:44:35,330 INFO L263 TraceCheckSpWp]: Trace formula consists of 490 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-18 01:44:35,332 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 01:44:35,458 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 217 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 01:44:35,458 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 01:44:35,795 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 217 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 01:44:35,795 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1538475249] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 01:44:35,795 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 01:44:35,796 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 34 [2022-11-18 01:44:35,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1972062623] [2022-11-18 01:44:35,796 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 01:44:35,796 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-11-18 01:44:35,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:44:35,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-11-18 01:44:35,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2022-11-18 01:44:35,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:35,798 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:44:35,799 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 7.9411764705882355) internal successors, (270), 34 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:44:35,799 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:35,799 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:44:35,799 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:44:35,799 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:44:35,799 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:44:35,799 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-11-18 01:44:35,799 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:36,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:36,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:44:36,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:44:36,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:44:36,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:44:36,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-18 01:44:36,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-11-18 01:44:36,880 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Forceful destruction successful, exit code 0 [2022-11-18 01:44:37,074 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable98,49 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:44:37,074 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)] === [2022-11-18 01:44:37,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:44:37,074 INFO L85 PathProgramCache]: Analyzing trace with hash 235955918, now seen corresponding path program 1 times [2022-11-18 01:44:37,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:44:37,075 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [966582160] [2022-11-18 01:44:37,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:44:37,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:44:37,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 01:44:37,107 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 01:44:37,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 01:44:37,154 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 01:44:37,154 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-18 01:44:37,154 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 7 remaining) [2022-11-18 01:44:37,154 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 7 remaining) [2022-11-18 01:44:37,154 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 7 remaining) [2022-11-18 01:44:37,155 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 7 remaining) [2022-11-18 01:44:37,155 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 7 remaining) [2022-11-18 01:44:37,155 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (1 of 7 remaining) [2022-11-18 01:44:37,155 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK (0 of 7 remaining) [2022-11-18 01:44:37,155 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable99 [2022-11-18 01:44:37,158 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 01:44:37,158 WARN L233 ceAbstractionStarter]: 14 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-18 01:44:37,159 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 15 thread instances. [2022-11-18 01:44:37,201 INFO L144 ThreadInstanceAdder]: Constructed 15 joinOtherThreadTransitions. [2022-11-18 01:44:37,206 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 01:44:37,206 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-11-18 01:44:37,207 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 [2022-11-18 01:44:37,208 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-11-18 01:44:37,213 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (50)] Waiting until timeout for monitored process [2022-11-18 01:44:37,216 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-11-18 01:44:37,216 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2022-11-18 01:44:37,216 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;@38e98ff3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 01:44:37,217 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-11-18 01:44:37,238 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)] === [2022-11-18 01:44:37,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:44:37,239 INFO L85 PathProgramCache]: Analyzing trace with hash -1012308350, now seen corresponding path program 1 times [2022-11-18 01:44:37,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:44:37,239 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [340544140] [2022-11-18 01:44:37,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:44:37,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:44:37,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:44:37,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:44:37,256 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:44:37,256 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [340544140] [2022-11-18 01:44:37,256 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [340544140] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 01:44:37,256 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 01:44:37,256 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 01:44:37,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2057719054] [2022-11-18 01:44:37,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 01:44:37,257 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-18 01:44:37,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:44:37,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-18 01:44:37,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-18 01:44:37,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:37,257 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:44:37,258 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 27.5) internal successors, (55), 2 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:44:37,258 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:37,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:37,259 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable100 [2022-11-18 01:44:37,259 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)] === [2022-11-18 01:44:37,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:44:37,260 INFO L85 PathProgramCache]: Analyzing trace with hash 495243459, now seen corresponding path program 1 times [2022-11-18 01:44:37,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:44:37,260 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1005185877] [2022-11-18 01:44:37,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:44:37,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:44:37,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:44:37,286 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:44:37,286 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:44:37,286 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1005185877] [2022-11-18 01:44:37,287 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1005185877] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 01:44:37,287 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 01:44:37,287 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 01:44:37,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166310178] [2022-11-18 01:44:37,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 01:44:37,288 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 01:44:37,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:44:37,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 01:44:37,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 01:44:37,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:37,289 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:44:37,289 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:44:37,289 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:37,289 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:37,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:37,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:44:37,512 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable101 [2022-11-18 01:44:37,512 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)] === [2022-11-18 01:44:37,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:44:37,512 INFO L85 PathProgramCache]: Analyzing trace with hash 977713336, now seen corresponding path program 1 times [2022-11-18 01:44:37,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:44:37,513 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1098810621] [2022-11-18 01:44:37,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:44:37,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:44:37,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:44:37,558 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:44:37,558 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:44:37,558 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1098810621] [2022-11-18 01:44:37,559 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1098810621] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 01:44:37,559 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1142306401] [2022-11-18 01:44:37,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:44:37,559 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:44:37,559 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 [2022-11-18 01:44:37,563 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 01:44:37,565 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Waiting until timeout for monitored process [2022-11-18 01:44:37,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:44:37,912 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 01:44:37,913 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 01:44:37,940 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:44:37,940 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 01:44:37,970 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:44:37,970 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1142306401] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 01:44:37,971 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 01:44:37,971 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-11-18 01:44:37,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [939578703] [2022-11-18 01:44:37,971 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 01:44:37,971 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-18 01:44:37,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:44:37,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-18 01:44:37,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-18 01:44:37,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:37,972 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:44:37,973 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.7) internal successors, (87), 10 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:44:37,973 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:37,973 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:44:37,973 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:38,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:38,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:44:38,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:44:38,127 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Forceful destruction successful, exit code 0 [2022-11-18 01:44:38,319 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 51 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable102 [2022-11-18 01:44:38,320 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)] === [2022-11-18 01:44:38,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:44:38,320 INFO L85 PathProgramCache]: Analyzing trace with hash 1782120741, now seen corresponding path program 1 times [2022-11-18 01:44:38,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:44:38,320 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2028932680] [2022-11-18 01:44:38,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:44:38,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:44:38,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:44:38,454 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-18 01:44:38,454 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:44:38,455 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2028932680] [2022-11-18 01:44:38,455 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2028932680] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 01:44:38,455 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 01:44:38,455 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 01:44:38,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [21299455] [2022-11-18 01:44:38,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 01:44:38,455 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 01:44:38,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:44:38,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 01:44:38,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 01:44:38,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:38,456 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:44:38,457 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:44:38,457 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:38,457 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:44:38,457 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:44:38,457 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:38,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:38,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:44:38,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:44:38,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 01:44:38,591 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable103 [2022-11-18 01:44:38,591 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)] === [2022-11-18 01:44:38,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:44:38,592 INFO L85 PathProgramCache]: Analyzing trace with hash -649940818, now seen corresponding path program 1 times [2022-11-18 01:44:38,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:44:38,592 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [974025796] [2022-11-18 01:44:38,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:44:38,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:44:38,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:44:38,644 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-18 01:44:38,645 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:44:38,645 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [974025796] [2022-11-18 01:44:38,645 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [974025796] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 01:44:38,645 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 01:44:38,646 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 01:44:38,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1421061321] [2022-11-18 01:44:38,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 01:44:38,646 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 01:44:38,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:44:38,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 01:44:38,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 01:44:38,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:38,648 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:44:38,648 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:44:38,648 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:38,648 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:44:38,648 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:44:38,649 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-11-18 01:44:38,649 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:38,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:38,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:44:38,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:44:38,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:44:38,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:44:38,915 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable104 [2022-11-18 01:44:38,915 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)] === [2022-11-18 01:44:38,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:44:38,915 INFO L85 PathProgramCache]: Analyzing trace with hash 1899856171, now seen corresponding path program 1 times [2022-11-18 01:44:38,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:44:38,915 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1059217855] [2022-11-18 01:44:38,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:44:38,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:44:38,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:44:38,995 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-18 01:44:38,996 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:44:38,996 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1059217855] [2022-11-18 01:44:38,996 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1059217855] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 01:44:38,996 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [849367774] [2022-11-18 01:44:38,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:44:38,996 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:44:38,996 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 [2022-11-18 01:44:38,997 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 01:44:38,998 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (52)] Waiting until timeout for monitored process [2022-11-18 01:44:39,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:44:39,377 INFO L263 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-18 01:44:39,379 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 01:44:39,471 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 01:44:39,471 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 01:44:39,579 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 01:44:39,580 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [849367774] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 01:44:39,580 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 01:44:39,580 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 9, 9] total 19 [2022-11-18 01:44:39,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [970500424] [2022-11-18 01:44:39,580 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 01:44:39,581 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-18 01:44:39,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:44:39,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-18 01:44:39,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=263, Unknown=0, NotChecked=0, Total=342 [2022-11-18 01:44:39,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:39,582 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:44:39,583 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 11.631578947368421) internal successors, (221), 19 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:44:39,583 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:39,583 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:44:39,583 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:44:39,583 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:44:39,583 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:44:39,583 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:40,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:40,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:44:40,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:44:40,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:44:40,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:44:40,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-18 01:44:40,168 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (52)] Forceful destruction successful, exit code 0 [2022-11-18 01:44:40,362 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable105,52 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:44:40,362 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)] === [2022-11-18 01:44:40,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:44:40,363 INFO L85 PathProgramCache]: Analyzing trace with hash 1149828039, now seen corresponding path program 1 times [2022-11-18 01:44:40,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:44:40,363 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2075587110] [2022-11-18 01:44:40,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:44:40,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:44:40,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:44:40,709 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 217 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 01:44:40,709 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:44:40,709 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2075587110] [2022-11-18 01:44:40,710 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2075587110] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 01:44:40,710 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1443347315] [2022-11-18 01:44:40,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:44:40,710 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:44:40,710 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 [2022-11-18 01:44:40,712 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 01:44:40,735 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (53)] Waiting until timeout for monitored process [2022-11-18 01:44:41,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:44:41,309 INFO L263 TraceCheckSpWp]: Trace formula consists of 490 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-18 01:44:41,311 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 01:44:41,416 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 217 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 01:44:41,417 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 01:44:41,710 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 217 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 01:44:41,711 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1443347315] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 01:44:41,711 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 01:44:41,711 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 34 [2022-11-18 01:44:41,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [547698010] [2022-11-18 01:44:41,712 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 01:44:41,712 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-11-18 01:44:41,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:44:41,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-11-18 01:44:41,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2022-11-18 01:44:41,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:41,715 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:44:41,715 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 7.9411764705882355) internal successors, (270), 34 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:44:41,715 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:41,715 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:44:41,716 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:44:41,716 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:44:41,716 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:44:41,716 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-11-18 01:44:41,716 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:43,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:43,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:44:43,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:44:43,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:44:43,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:44:43,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-18 01:44:43,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-11-18 01:44:43,084 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (53)] Forceful destruction successful, exit code 0 [2022-11-18 01:44:43,279 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 53 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable106 [2022-11-18 01:44:43,279 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)] === [2022-11-18 01:44:43,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:44:43,279 INFO L85 PathProgramCache]: Analyzing trace with hash 81919147, now seen corresponding path program 1 times [2022-11-18 01:44:43,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:44:43,279 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1734322610] [2022-11-18 01:44:43,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:44:43,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:44:43,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:44:44,321 INFO L134 CoverageAnalysis]: Checked inductivity of 1073 backedges. 0 proven. 1065 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 01:44:44,321 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:44:44,321 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1734322610] [2022-11-18 01:44:44,321 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1734322610] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 01:44:44,321 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1740487476] [2022-11-18 01:44:44,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:44:44,322 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:44:44,322 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 [2022-11-18 01:44:44,323 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 01:44:44,325 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (54)] Waiting until timeout for monitored process [2022-11-18 01:44:44,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:44:44,786 INFO L263 TraceCheckSpWp]: Trace formula consists of 698 conjuncts, 32 conjunts are in the unsatisfiable core [2022-11-18 01:44:44,788 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 01:44:45,025 INFO L134 CoverageAnalysis]: Checked inductivity of 1073 backedges. 0 proven. 1065 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 01:44:45,025 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 01:44:46,078 INFO L134 CoverageAnalysis]: Checked inductivity of 1073 backedges. 0 proven. 1065 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 01:44:46,079 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1740487476] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 01:44:46,079 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 01:44:46,079 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33, 33] total 66 [2022-11-18 01:44:46,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1712554055] [2022-11-18 01:44:46,080 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 01:44:46,081 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 66 states [2022-11-18 01:44:46,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:44:46,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2022-11-18 01:44:46,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1122, Invalid=3168, Unknown=0, NotChecked=0, Total=4290 [2022-11-18 01:44:46,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:46,083 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:44:46,083 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 66 states, 66 states have (on average 6.515151515151516) internal successors, (430), 66 states have internal predecessors, (430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:44:46,084 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:46,084 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:44:46,084 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:44:46,084 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:44:46,084 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:44:46,084 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-11-18 01:44:46,084 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2022-11-18 01:44:46,084 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:47,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:47,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:44:47,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:44:47,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:44:47,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:44:47,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-18 01:44:47,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-11-18 01:44:47,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-11-18 01:44:47,163 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (54)] Ended with exit code 0 [2022-11-18 01:44:47,358 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable107,54 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:44:47,358 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)] === [2022-11-18 01:44:47,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:44:47,358 INFO L85 PathProgramCache]: Analyzing trace with hash 228932941, now seen corresponding path program 1 times [2022-11-18 01:44:47,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:44:47,359 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [417308052] [2022-11-18 01:44:47,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:44:47,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:44:47,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 01:44:47,393 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 01:44:47,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 01:44:47,449 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 01:44:47,450 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-18 01:44:47,450 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 7 remaining) [2022-11-18 01:44:47,450 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 7 remaining) [2022-11-18 01:44:47,450 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 7 remaining) [2022-11-18 01:44:47,451 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 7 remaining) [2022-11-18 01:44:47,451 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 7 remaining) [2022-11-18 01:44:47,451 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (1 of 7 remaining) [2022-11-18 01:44:47,451 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK (0 of 7 remaining) [2022-11-18 01:44:47,451 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable108 [2022-11-18 01:44:47,454 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 01:44:47,455 WARN L233 ceAbstractionStarter]: 15 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-18 01:44:47,455 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 16 thread instances. [2022-11-18 01:44:47,503 INFO L144 ThreadInstanceAdder]: Constructed 16 joinOtherThreadTransitions. [2022-11-18 01:44:47,508 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 01:44:47,508 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-11-18 01:44:47,508 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 [2022-11-18 01:44:47,512 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-11-18 01:44:47,521 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-11-18 01:44:47,522 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2022-11-18 01:44:47,522 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;@38e98ff3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 01:44:47,522 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-11-18 01:44:47,539 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (55)] Waiting until timeout for monitored process [2022-11-18 01:44:47,569 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)] === [2022-11-18 01:44:47,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:44:47,569 INFO L85 PathProgramCache]: Analyzing trace with hash 643910170, now seen corresponding path program 1 times [2022-11-18 01:44:47,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:44:47,569 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2127152731] [2022-11-18 01:44:47,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:44:47,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:44:47,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:44:47,588 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:44:47,588 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:44:47,588 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2127152731] [2022-11-18 01:44:47,588 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2127152731] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 01:44:47,588 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 01:44:47,589 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 01:44:47,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1451608501] [2022-11-18 01:44:47,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 01:44:47,589 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-18 01:44:47,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:44:47,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-18 01:44:47,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-18 01:44:47,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:47,590 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:44:47,591 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 27.5) internal successors, (55), 2 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:44:47,591 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:47,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:47,592 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable109 [2022-11-18 01:44:47,592 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)] === [2022-11-18 01:44:47,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:44:47,593 INFO L85 PathProgramCache]: Analyzing trace with hash -2143505317, now seen corresponding path program 1 times [2022-11-18 01:44:47,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:44:47,593 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [6479449] [2022-11-18 01:44:47,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:44:47,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:44:47,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:44:47,633 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:44:47,633 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:44:47,633 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [6479449] [2022-11-18 01:44:47,633 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [6479449] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 01:44:47,633 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 01:44:47,634 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 01:44:47,634 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892903171] [2022-11-18 01:44:47,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 01:44:47,634 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 01:44:47,634 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:44:47,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 01:44:47,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 01:44:47,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:47,636 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:44:47,637 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:44:47,637 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:47,637 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:47,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:47,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:44:47,870 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable110 [2022-11-18 01:44:47,870 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)] === [2022-11-18 01:44:47,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:44:47,871 INFO L85 PathProgramCache]: Analyzing trace with hash 279918444, now seen corresponding path program 1 times [2022-11-18 01:44:47,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:44:47,871 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1545385929] [2022-11-18 01:44:47,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:44:47,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:44:47,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:44:47,918 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:44:47,918 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:44:47,918 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1545385929] [2022-11-18 01:44:47,919 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1545385929] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 01:44:47,919 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1516422744] [2022-11-18 01:44:47,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:44:47,919 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:44:47,919 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 [2022-11-18 01:44:47,923 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 01:44:47,943 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (56)] Waiting until timeout for monitored process [2022-11-18 01:44:48,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:44:48,342 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 01:44:48,343 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 01:44:48,365 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:44:48,365 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 01:44:48,394 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:44:48,394 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1516422744] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 01:44:48,394 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 01:44:48,395 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-11-18 01:44:48,395 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1807037102] [2022-11-18 01:44:48,395 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 01:44:48,395 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-18 01:44:48,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:44:48,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-18 01:44:48,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-18 01:44:48,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:48,396 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:44:48,396 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.7) internal successors, (87), 10 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:44:48,396 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:48,397 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:44:48,397 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:48,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:48,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:44:48,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:44:48,556 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (56)] Ended with exit code 0 [2022-11-18 01:44:48,751 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 56 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable111 [2022-11-18 01:44:48,752 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)] === [2022-11-18 01:44:48,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:44:48,752 INFO L85 PathProgramCache]: Analyzing trace with hash 1386208529, now seen corresponding path program 1 times [2022-11-18 01:44:48,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:44:48,752 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1111517642] [2022-11-18 01:44:48,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:44:48,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:44:48,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:44:48,839 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-18 01:44:48,840 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:44:48,840 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1111517642] [2022-11-18 01:44:48,840 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1111517642] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 01:44:48,840 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 01:44:48,840 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 01:44:48,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [524331014] [2022-11-18 01:44:48,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 01:44:48,841 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 01:44:48,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:44:48,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 01:44:48,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 01:44:48,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:48,842 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:44:48,842 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:44:48,842 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:48,843 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:44:48,843 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:44:48,843 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:49,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:49,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:44:49,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:44:49,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 01:44:49,005 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable112 [2022-11-18 01:44:49,005 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)] === [2022-11-18 01:44:49,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:44:49,006 INFO L85 PathProgramCache]: Analyzing trace with hash 2035936986, now seen corresponding path program 1 times [2022-11-18 01:44:49,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:44:49,006 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1945885684] [2022-11-18 01:44:49,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:44:49,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:44:49,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:44:49,054 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-18 01:44:49,054 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:44:49,055 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1945885684] [2022-11-18 01:44:49,055 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1945885684] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 01:44:49,055 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 01:44:49,055 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 01:44:49,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2062993807] [2022-11-18 01:44:49,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 01:44:49,056 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 01:44:49,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:44:49,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 01:44:49,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 01:44:49,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:49,058 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:44:49,058 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:44:49,058 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:49,059 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:44:49,059 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:44:49,059 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-11-18 01:44:49,059 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:49,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:49,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:44:49,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:44:49,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:44:49,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:44:49,325 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable113 [2022-11-18 01:44:49,325 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)] === [2022-11-18 01:44:49,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:44:49,326 INFO L85 PathProgramCache]: Analyzing trace with hash -449871590, now seen corresponding path program 1 times [2022-11-18 01:44:49,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:44:49,326 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1616890455] [2022-11-18 01:44:49,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:44:49,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:44:49,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:44:49,411 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-18 01:44:49,411 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:44:49,411 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1616890455] [2022-11-18 01:44:49,411 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1616890455] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 01:44:49,412 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [695229090] [2022-11-18 01:44:49,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:44:49,413 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:44:49,413 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 [2022-11-18 01:44:49,415 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 01:44:49,435 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (57)] Waiting until timeout for monitored process [2022-11-18 01:44:49,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:44:49,865 INFO L263 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-18 01:44:49,867 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 01:44:50,009 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 01:44:50,010 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 01:44:50,136 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 01:44:50,137 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [695229090] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 01:44:50,137 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 01:44:50,137 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 9, 9] total 19 [2022-11-18 01:44:50,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2003698875] [2022-11-18 01:44:50,137 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 01:44:50,138 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-18 01:44:50,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:44:50,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-18 01:44:50,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=263, Unknown=0, NotChecked=0, Total=342 [2022-11-18 01:44:50,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:50,139 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:44:50,139 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 11.631578947368421) internal successors, (221), 19 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:44:50,139 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:50,140 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:44:50,140 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:44:50,140 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:44:50,140 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:44:50,140 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:50,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:50,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:44:50,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:44:50,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:44:50,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:44:50,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-18 01:44:50,802 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (57)] Ended with exit code 0 [2022-11-18 01:44:50,996 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 57 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable114 [2022-11-18 01:44:50,997 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)] === [2022-11-18 01:44:50,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:44:50,997 INFO L85 PathProgramCache]: Analyzing trace with hash -791067805, now seen corresponding path program 1 times [2022-11-18 01:44:50,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:44:50,998 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2074229041] [2022-11-18 01:44:50,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:44:50,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:44:51,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:44:51,357 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 217 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 01:44:51,358 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:44:51,358 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2074229041] [2022-11-18 01:44:51,359 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2074229041] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 01:44:51,359 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1951887699] [2022-11-18 01:44:51,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:44:51,359 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:44:51,359 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 [2022-11-18 01:44:51,360 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 01:44:51,362 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (58)] Waiting until timeout for monitored process [2022-11-18 01:44:51,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:44:51,810 INFO L263 TraceCheckSpWp]: Trace formula consists of 490 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-18 01:44:51,812 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 01:44:51,940 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 217 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 01:44:51,940 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 01:44:52,244 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 217 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 01:44:52,245 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1951887699] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 01:44:52,245 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 01:44:52,245 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 34 [2022-11-18 01:44:52,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599755444] [2022-11-18 01:44:52,245 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 01:44:52,246 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-11-18 01:44:52,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:44:52,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-11-18 01:44:52,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2022-11-18 01:44:52,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:52,248 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:44:52,248 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 7.9411764705882355) internal successors, (270), 34 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:44:52,249 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:52,249 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:44:52,249 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:44:52,249 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:44:52,249 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:44:52,249 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-11-18 01:44:52,249 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:53,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:53,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:44:53,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:44:53,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:44:53,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:44:53,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-18 01:44:53,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-11-18 01:44:53,858 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (58)] Forceful destruction successful, exit code 0 [2022-11-18 01:44:54,052 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable115,58 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:44:54,052 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)] === [2022-11-18 01:44:54,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:44:54,053 INFO L85 PathProgramCache]: Analyzing trace with hash -244410777, now seen corresponding path program 1 times [2022-11-18 01:44:54,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:44:54,053 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1337468730] [2022-11-18 01:44:54,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:44:54,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:44:54,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:44:55,070 INFO L134 CoverageAnalysis]: Checked inductivity of 1073 backedges. 0 proven. 1065 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 01:44:55,070 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:44:55,070 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1337468730] [2022-11-18 01:44:55,070 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1337468730] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 01:44:55,071 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1436696693] [2022-11-18 01:44:55,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:44:55,071 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:44:55,071 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 [2022-11-18 01:44:55,072 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 01:44:55,083 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (59)] Waiting until timeout for monitored process [2022-11-18 01:44:55,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:44:55,597 INFO L263 TraceCheckSpWp]: Trace formula consists of 698 conjuncts, 32 conjunts are in the unsatisfiable core [2022-11-18 01:44:55,601 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 01:44:55,817 INFO L134 CoverageAnalysis]: Checked inductivity of 1073 backedges. 0 proven. 1065 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 01:44:55,817 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 01:44:56,813 INFO L134 CoverageAnalysis]: Checked inductivity of 1073 backedges. 0 proven. 1065 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 01:44:56,814 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1436696693] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 01:44:56,814 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 01:44:56,814 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33, 33] total 66 [2022-11-18 01:44:56,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1368993263] [2022-11-18 01:44:56,814 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 01:44:56,815 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 66 states [2022-11-18 01:44:56,815 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:44:56,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2022-11-18 01:44:56,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1122, Invalid=3168, Unknown=0, NotChecked=0, Total=4290 [2022-11-18 01:44:56,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:56,818 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:44:56,819 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 66 states, 66 states have (on average 6.515151515151516) internal successors, (430), 66 states have internal predecessors, (430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:44:56,819 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:56,819 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:44:56,819 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:44:56,819 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:44:56,819 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:44:56,819 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-11-18 01:44:56,819 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2022-11-18 01:44:56,819 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:58,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:58,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:44:58,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:44:58,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:44:58,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:44:58,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-18 01:44:58,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-11-18 01:44:58,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-11-18 01:44:58,018 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (59)] Ended with exit code 0 [2022-11-18 01:44:58,212 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable116,59 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:44:58,212 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)] === [2022-11-18 01:44:58,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:44:58,213 INFO L85 PathProgramCache]: Analyzing trace with hash -1815858107, now seen corresponding path program 1 times [2022-11-18 01:44:58,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:44:58,213 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1632398950] [2022-11-18 01:44:58,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:44:58,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:44:58,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 01:44:58,247 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 01:44:58,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 01:44:58,305 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 01:44:58,305 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-18 01:44:58,306 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 7 remaining) [2022-11-18 01:44:58,306 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 7 remaining) [2022-11-18 01:44:58,306 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 7 remaining) [2022-11-18 01:44:58,306 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 7 remaining) [2022-11-18 01:44:58,306 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 7 remaining) [2022-11-18 01:44:58,307 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (1 of 7 remaining) [2022-11-18 01:44:58,307 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK (0 of 7 remaining) [2022-11-18 01:44:58,307 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable117 [2022-11-18 01:44:58,311 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 01:44:58,311 WARN L233 ceAbstractionStarter]: 16 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-18 01:44:58,311 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 17 thread instances. [2022-11-18 01:44:58,364 INFO L144 ThreadInstanceAdder]: Constructed 17 joinOtherThreadTransitions. [2022-11-18 01:44:58,369 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 01:44:58,370 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-11-18 01:44:58,370 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 [2022-11-18 01:44:58,371 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-11-18 01:44:58,381 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-11-18 01:44:58,382 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2022-11-18 01:44:58,382 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;@38e98ff3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 01:44:58,382 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-11-18 01:44:58,401 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (60)] Waiting until timeout for monitored process [2022-11-18 01:44:58,420 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)] === [2022-11-18 01:44:58,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:44:58,420 INFO L85 PathProgramCache]: Analyzing trace with hash -1378789902, now seen corresponding path program 1 times [2022-11-18 01:44:58,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:44:58,421 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [898549568] [2022-11-18 01:44:58,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:44:58,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:44:58,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:44:58,439 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:44:58,439 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:44:58,439 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [898549568] [2022-11-18 01:44:58,439 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [898549568] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 01:44:58,439 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 01:44:58,440 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 01:44:58,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183085536] [2022-11-18 01:44:58,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 01:44:58,441 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-18 01:44:58,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:44:58,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-18 01:44:58,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-18 01:44:58,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:58,442 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:44:58,443 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 27.5) internal successors, (55), 2 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:44:58,443 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:58,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:58,444 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable118 [2022-11-18 01:44:58,444 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)] === [2022-11-18 01:44:58,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:44:58,445 INFO L85 PathProgramCache]: Analyzing trace with hash 128761907, now seen corresponding path program 1 times [2022-11-18 01:44:58,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:44:58,445 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [294139271] [2022-11-18 01:44:58,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:44:58,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:44:58,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:44:58,474 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:44:58,474 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:44:58,475 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [294139271] [2022-11-18 01:44:58,475 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [294139271] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 01:44:58,475 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 01:44:58,475 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 01:44:58,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2093666314] [2022-11-18 01:44:58,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 01:44:58,476 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 01:44:58,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:44:58,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 01:44:58,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 01:44:58,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:58,477 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:44:58,477 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:44:58,477 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:58,477 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:58,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:58,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:44:58,751 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable119 [2022-11-18 01:44:58,751 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)] === [2022-11-18 01:44:58,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:44:58,751 INFO L85 PathProgramCache]: Analyzing trace with hash 1092007520, now seen corresponding path program 1 times [2022-11-18 01:44:58,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:44:58,752 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [263797822] [2022-11-18 01:44:58,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:44:58,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:44:58,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:44:58,799 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:44:58,799 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:44:58,799 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [263797822] [2022-11-18 01:44:58,799 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [263797822] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 01:44:58,800 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [14739054] [2022-11-18 01:44:58,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:44:58,800 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:44:58,800 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 [2022-11-18 01:44:58,807 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 01:44:58,815 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (61)] Waiting until timeout for monitored process [2022-11-18 01:44:59,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:44:59,262 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 01:44:59,263 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 01:44:59,285 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:44:59,285 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 01:44:59,314 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:44:59,314 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [14739054] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 01:44:59,315 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 01:44:59,315 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-11-18 01:44:59,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1236922174] [2022-11-18 01:44:59,315 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 01:44:59,315 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-18 01:44:59,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:44:59,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-18 01:44:59,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-18 01:44:59,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:59,316 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:44:59,317 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.7) internal successors, (87), 10 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:44:59,317 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:59,317 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:44:59,317 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:59,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:59,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:44:59,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:44:59,492 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (61)] Ended with exit code 0 [2022-11-18 01:44:59,691 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable120,61 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:44:59,691 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)] === [2022-11-18 01:44:59,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:44:59,692 INFO L85 PathProgramCache]: Analyzing trace with hash 1191799101, now seen corresponding path program 1 times [2022-11-18 01:44:59,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:44:59,692 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1494010550] [2022-11-18 01:44:59,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:44:59,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:44:59,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:44:59,756 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-18 01:44:59,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:44:59,756 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1494010550] [2022-11-18 01:44:59,756 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1494010550] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 01:44:59,756 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 01:44:59,756 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 01:44:59,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813055758] [2022-11-18 01:44:59,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 01:44:59,757 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 01:44:59,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:44:59,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 01:44:59,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 01:44:59,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:59,757 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:44:59,758 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:44:59,758 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:59,758 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:44:59,758 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:44:59,758 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:59,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:59,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:44:59,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:44:59,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 01:44:59,885 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable121 [2022-11-18 01:44:59,885 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)] === [2022-11-18 01:44:59,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:44:59,885 INFO L85 PathProgramCache]: Analyzing trace with hash -442323706, now seen corresponding path program 1 times [2022-11-18 01:44:59,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:44:59,885 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [740612126] [2022-11-18 01:44:59,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:44:59,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:44:59,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:44:59,920 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-18 01:44:59,920 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:44:59,920 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [740612126] [2022-11-18 01:44:59,920 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [740612126] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 01:44:59,920 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 01:44:59,921 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 01:44:59,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [953523528] [2022-11-18 01:44:59,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 01:44:59,921 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 01:44:59,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:44:59,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 01:44:59,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 01:44:59,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:59,922 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:44:59,922 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:44:59,922 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:44:59,922 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:44:59,922 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:44:59,922 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-11-18 01:44:59,922 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:00,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:00,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:45:00,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:45:00,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:45:00,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:45:00,187 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable122 [2022-11-18 01:45:00,187 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)] === [2022-11-18 01:45:00,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:45:00,187 INFO L85 PathProgramCache]: Analyzing trace with hash 1371875657, now seen corresponding path program 1 times [2022-11-18 01:45:00,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:45:00,188 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [21108879] [2022-11-18 01:45:00,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:45:00,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:45:00,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:45:00,335 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-18 01:45:00,335 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:45:00,336 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [21108879] [2022-11-18 01:45:00,336 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [21108879] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 01:45:00,336 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2064811089] [2022-11-18 01:45:00,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:45:00,336 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:45:00,336 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 [2022-11-18 01:45:00,338 INFO L229 MonitoredProcess]: Starting monitored process 62 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 01:45:00,339 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (62)] Waiting until timeout for monitored process [2022-11-18 01:45:00,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:45:00,801 INFO L263 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-18 01:45:00,803 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 01:45:00,880 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 01:45:00,880 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 01:45:00,999 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 01:45:00,999 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2064811089] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 01:45:00,999 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 01:45:01,000 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 9, 9] total 19 [2022-11-18 01:45:01,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [770445558] [2022-11-18 01:45:01,000 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 01:45:01,000 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-18 01:45:01,000 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:45:01,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-18 01:45:01,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=263, Unknown=0, NotChecked=0, Total=342 [2022-11-18 01:45:01,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:01,002 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:45:01,002 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 11.631578947368421) internal successors, (221), 19 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:45:01,002 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:01,002 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:45:01,002 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:45:01,002 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:45:01,002 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:45:01,002 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:01,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:01,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:45:01,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:45:01,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:45:01,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:45:01,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-18 01:45:01,633 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (62)] Forceful destruction successful, exit code 0 [2022-11-18 01:45:01,833 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable123,62 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:45:01,833 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)] === [2022-11-18 01:45:01,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:45:01,834 INFO L85 PathProgramCache]: Analyzing trace with hash -1519538561, now seen corresponding path program 1 times [2022-11-18 01:45:01,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:45:01,834 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [965636860] [2022-11-18 01:45:01,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:45:01,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:45:01,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:45:02,142 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 217 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 01:45:02,142 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:45:02,142 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [965636860] [2022-11-18 01:45:02,142 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [965636860] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 01:45:02,143 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [513870606] [2022-11-18 01:45:02,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:45:02,143 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:45:02,143 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 [2022-11-18 01:45:02,145 INFO L229 MonitoredProcess]: Starting monitored process 63 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 01:45:02,146 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (63)] Waiting until timeout for monitored process [2022-11-18 01:45:02,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:45:02,641 INFO L263 TraceCheckSpWp]: Trace formula consists of 490 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-18 01:45:02,644 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 01:45:02,763 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 217 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 01:45:02,763 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 01:45:03,109 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 217 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 01:45:03,109 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [513870606] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 01:45:03,109 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 01:45:03,110 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 34 [2022-11-18 01:45:03,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539518282] [2022-11-18 01:45:03,110 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 01:45:03,110 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-11-18 01:45:03,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:45:03,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-11-18 01:45:03,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2022-11-18 01:45:03,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:03,111 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:45:03,113 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 7.9411764705882355) internal successors, (270), 34 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:45:03,113 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:03,113 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:45:03,113 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:45:03,113 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:45:03,113 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:45:03,114 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-11-18 01:45:03,114 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:04,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:04,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:45:04,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:45:04,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:45:04,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:45:04,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-18 01:45:04,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-11-18 01:45:04,793 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (63)] Ended with exit code 0 [2022-11-18 01:45:04,988 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 63 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable124 [2022-11-18 01:45:04,989 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)] === [2022-11-18 01:45:04,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:45:04,989 INFO L85 PathProgramCache]: Analyzing trace with hash -782842973, now seen corresponding path program 1 times [2022-11-18 01:45:04,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:45:04,989 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1929124525] [2022-11-18 01:45:04,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:45:04,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:45:05,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:45:05,934 INFO L134 CoverageAnalysis]: Checked inductivity of 1073 backedges. 0 proven. 1065 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 01:45:05,934 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:45:05,934 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1929124525] [2022-11-18 01:45:05,934 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1929124525] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 01:45:05,934 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1994844504] [2022-11-18 01:45:05,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:45:05,935 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:45:05,935 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 [2022-11-18 01:45:05,940 INFO L229 MonitoredProcess]: Starting monitored process 64 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 01:45:05,963 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (64)] Waiting until timeout for monitored process [2022-11-18 01:45:06,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:45:06,565 INFO L263 TraceCheckSpWp]: Trace formula consists of 698 conjuncts, 32 conjunts are in the unsatisfiable core [2022-11-18 01:45:06,568 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 01:45:06,776 INFO L134 CoverageAnalysis]: Checked inductivity of 1073 backedges. 0 proven. 1065 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 01:45:06,776 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 01:45:07,778 INFO L134 CoverageAnalysis]: Checked inductivity of 1073 backedges. 0 proven. 1065 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 01:45:07,778 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1994844504] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 01:45:07,778 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 01:45:07,778 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33, 33] total 66 [2022-11-18 01:45:07,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [541145534] [2022-11-18 01:45:07,779 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 01:45:07,779 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 66 states [2022-11-18 01:45:07,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:45:07,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2022-11-18 01:45:07,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1122, Invalid=3168, Unknown=0, NotChecked=0, Total=4290 [2022-11-18 01:45:07,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:07,780 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:45:07,781 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 66 states, 66 states have (on average 6.515151515151516) internal successors, (430), 66 states have internal predecessors, (430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:45:07,781 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:07,781 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:45:07,781 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:45:07,781 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:45:07,781 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:45:07,781 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-11-18 01:45:07,781 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2022-11-18 01:45:07,781 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:09,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:09,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:45:09,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:45:09,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:45:09,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:45:09,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-18 01:45:09,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-11-18 01:45:09,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-11-18 01:45:09,222 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (64)] Ended with exit code 0 [2022-11-18 01:45:09,416 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 64 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable125 [2022-11-18 01:45:09,416 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)] === [2022-11-18 01:45:09,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:45:09,417 INFO L85 PathProgramCache]: Analyzing trace with hash 2038689142, now seen corresponding path program 1 times [2022-11-18 01:45:09,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:45:09,417 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1053193678] [2022-11-18 01:45:09,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:45:09,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:45:09,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 01:45:09,450 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 01:45:09,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 01:45:09,510 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 01:45:09,510 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-18 01:45:09,510 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 7 remaining) [2022-11-18 01:45:09,511 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 7 remaining) [2022-11-18 01:45:09,511 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 7 remaining) [2022-11-18 01:45:09,511 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 7 remaining) [2022-11-18 01:45:09,511 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 7 remaining) [2022-11-18 01:45:09,511 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (1 of 7 remaining) [2022-11-18 01:45:09,511 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK (0 of 7 remaining) [2022-11-18 01:45:09,511 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable126 [2022-11-18 01:45:09,515 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 01:45:09,515 WARN L233 ceAbstractionStarter]: 17 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-18 01:45:09,515 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 18 thread instances. [2022-11-18 01:45:09,565 INFO L144 ThreadInstanceAdder]: Constructed 18 joinOtherThreadTransitions. [2022-11-18 01:45:09,569 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 01:45:09,570 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-11-18 01:45:09,570 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 [2022-11-18 01:45:09,571 INFO L229 MonitoredProcess]: Starting monitored process 65 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-11-18 01:45:09,581 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-11-18 01:45:09,582 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2022-11-18 01:45:09,582 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;@38e98ff3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 01:45:09,582 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-11-18 01:45:09,599 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (65)] Waiting until timeout for monitored process [2022-11-18 01:45:09,632 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)] === [2022-11-18 01:45:09,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:45:09,633 INFO L85 PathProgramCache]: Analyzing trace with hash 1509526026, now seen corresponding path program 1 times [2022-11-18 01:45:09,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:45:09,633 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [593760488] [2022-11-18 01:45:09,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:45:09,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:45:09,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:45:09,652 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:45:09,652 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:45:09,652 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [593760488] [2022-11-18 01:45:09,652 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [593760488] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 01:45:09,653 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 01:45:09,653 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 01:45:09,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [956888323] [2022-11-18 01:45:09,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 01:45:09,654 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-18 01:45:09,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:45:09,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-18 01:45:09,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-18 01:45:09,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:09,663 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:45:09,664 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 27.5) internal successors, (55), 2 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:45:09,664 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:09,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:09,665 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable127 [2022-11-18 01:45:09,666 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)] === [2022-11-18 01:45:09,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:45:09,666 INFO L85 PathProgramCache]: Analyzing trace with hash -1277889461, now seen corresponding path program 1 times [2022-11-18 01:45:09,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:45:09,666 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [875661396] [2022-11-18 01:45:09,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:45:09,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:45:09,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:45:09,694 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:45:09,694 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:45:09,695 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [875661396] [2022-11-18 01:45:09,695 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [875661396] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 01:45:09,695 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 01:45:09,695 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 01:45:09,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [935811048] [2022-11-18 01:45:09,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 01:45:09,696 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 01:45:09,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:45:09,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 01:45:09,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 01:45:09,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:09,697 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:45:09,698 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:45:09,698 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:09,698 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:09,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:09,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:45:09,979 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable128 [2022-11-18 01:45:09,979 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)] === [2022-11-18 01:45:09,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:45:09,980 INFO L85 PathProgramCache]: Analyzing trace with hash -880986732, now seen corresponding path program 1 times [2022-11-18 01:45:09,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:45:09,980 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [855139539] [2022-11-18 01:45:09,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:45:09,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:45:09,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:45:10,028 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:45:10,029 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:45:10,029 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [855139539] [2022-11-18 01:45:10,029 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [855139539] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 01:45:10,029 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [84439103] [2022-11-18 01:45:10,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:45:10,030 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:45:10,030 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 [2022-11-18 01:45:10,033 INFO L229 MonitoredProcess]: Starting monitored process 66 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 01:45:10,059 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (66)] Waiting until timeout for monitored process [2022-11-18 01:45:10,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:45:10,518 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 01:45:10,519 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 01:45:10,540 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:45:10,541 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 01:45:10,571 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:45:10,571 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [84439103] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 01:45:10,571 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 01:45:10,571 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-11-18 01:45:10,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564284736] [2022-11-18 01:45:10,571 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 01:45:10,572 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-18 01:45:10,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:45:10,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-18 01:45:10,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-18 01:45:10,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:10,573 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:45:10,573 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.7) internal successors, (87), 10 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:45:10,573 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:10,573 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:45:10,573 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:10,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:10,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:45:10,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:45:10,751 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (66)] Ended with exit code 0 [2022-11-18 01:45:10,946 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 66 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable129 [2022-11-18 01:45:10,946 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)] === [2022-11-18 01:45:10,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:45:10,947 INFO L85 PathProgramCache]: Analyzing trace with hash 1198892457, now seen corresponding path program 1 times [2022-11-18 01:45:10,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:45:10,947 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2058492201] [2022-11-18 01:45:10,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:45:10,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:45:10,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:45:11,024 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-18 01:45:11,025 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:45:11,025 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2058492201] [2022-11-18 01:45:11,025 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2058492201] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 01:45:11,025 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 01:45:11,025 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 01:45:11,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [42167674] [2022-11-18 01:45:11,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 01:45:11,026 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 01:45:11,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:45:11,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 01:45:11,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 01:45:11,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:11,027 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:45:11,028 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:45:11,028 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:11,028 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:45:11,028 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:45:11,028 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:11,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:11,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:45:11,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:45:11,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 01:45:11,204 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable130 [2022-11-18 01:45:11,204 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)] === [2022-11-18 01:45:11,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:45:11,205 INFO L85 PathProgramCache]: Analyzing trace with hash 505211698, now seen corresponding path program 1 times [2022-11-18 01:45:11,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:45:11,205 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1928664771] [2022-11-18 01:45:11,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:45:11,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:45:11,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:45:11,245 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-18 01:45:11,245 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:45:11,245 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1928664771] [2022-11-18 01:45:11,245 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1928664771] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 01:45:11,245 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 01:45:11,245 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 01:45:11,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005474589] [2022-11-18 01:45:11,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 01:45:11,246 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 01:45:11,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:45:11,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 01:45:11,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 01:45:11,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:11,247 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:45:11,248 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:45:11,248 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:11,248 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:45:11,248 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:45:11,248 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-11-18 01:45:11,248 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:11,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:11,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:45:11,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:45:11,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:45:11,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:45:11,529 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable131 [2022-11-18 01:45:11,529 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)] === [2022-11-18 01:45:11,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:45:11,529 INFO L85 PathProgramCache]: Analyzing trace with hash 458685752, now seen corresponding path program 1 times [2022-11-18 01:45:11,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:45:11,530 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1451008705] [2022-11-18 01:45:11,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:45:11,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:45:11,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:45:11,612 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-18 01:45:11,612 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:45:11,612 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1451008705] [2022-11-18 01:45:11,612 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1451008705] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 01:45:11,612 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [732526420] [2022-11-18 01:45:11,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:45:11,613 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:45:11,613 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 [2022-11-18 01:45:11,614 INFO L229 MonitoredProcess]: Starting monitored process 67 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 01:45:11,639 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (67)] Waiting until timeout for monitored process [2022-11-18 01:45:12,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:45:12,136 INFO L263 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-18 01:45:12,138 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 01:45:12,216 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 01:45:12,217 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 01:45:12,347 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 01:45:12,347 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [732526420] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 01:45:12,347 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 01:45:12,347 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 9, 9] total 19 [2022-11-18 01:45:12,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [891243959] [2022-11-18 01:45:12,347 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 01:45:12,348 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-18 01:45:12,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:45:12,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-18 01:45:12,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=263, Unknown=0, NotChecked=0, Total=342 [2022-11-18 01:45:12,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:12,350 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:45:12,350 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 11.631578947368421) internal successors, (221), 19 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:45:12,350 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:12,350 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:45:12,350 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:45:12,351 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:45:12,351 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:45:12,351 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:13,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:13,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:45:13,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:45:13,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:45:13,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:45:13,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-18 01:45:13,098 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (67)] Forceful destruction successful, exit code 0 [2022-11-18 01:45:13,298 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable132,67 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:45:13,298 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)] === [2022-11-18 01:45:13,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:45:13,298 INFO L85 PathProgramCache]: Analyzing trace with hash 384172955, now seen corresponding path program 1 times [2022-11-18 01:45:13,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:45:13,299 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1815063349] [2022-11-18 01:45:13,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:45:13,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:45:13,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:45:13,624 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 217 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 01:45:13,624 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:45:13,624 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1815063349] [2022-11-18 01:45:13,624 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1815063349] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 01:45:13,624 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1233842608] [2022-11-18 01:45:13,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:45:13,624 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:45:13,625 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 [2022-11-18 01:45:13,626 INFO L229 MonitoredProcess]: Starting monitored process 68 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 01:45:13,643 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (68)] Waiting until timeout for monitored process [2022-11-18 01:45:14,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:45:14,260 INFO L263 TraceCheckSpWp]: Trace formula consists of 490 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-18 01:45:14,262 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 01:45:14,382 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 217 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 01:45:14,382 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 01:45:14,690 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 217 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 01:45:14,690 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1233842608] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 01:45:14,690 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 01:45:14,691 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 34 [2022-11-18 01:45:14,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1403342891] [2022-11-18 01:45:14,691 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 01:45:14,691 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-11-18 01:45:14,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:45:14,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-11-18 01:45:14,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2022-11-18 01:45:14,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:14,693 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:45:14,693 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 7.9411764705882355) internal successors, (270), 34 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:45:14,693 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:14,693 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:45:14,693 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:45:14,693 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:45:14,693 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:45:14,693 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-11-18 01:45:14,693 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:16,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:16,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:45:16,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:45:16,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:45:16,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:45:16,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-18 01:45:16,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-11-18 01:45:16,349 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (68)] Forceful destruction successful, exit code 0 [2022-11-18 01:45:16,539 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable133,68 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:45:16,540 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)] === [2022-11-18 01:45:16,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:45:16,540 INFO L85 PathProgramCache]: Analyzing trace with hash 591609823, now seen corresponding path program 1 times [2022-11-18 01:45:16,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:45:16,540 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [827940348] [2022-11-18 01:45:16,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:45:16,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:45:16,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:45:17,354 INFO L134 CoverageAnalysis]: Checked inductivity of 1073 backedges. 0 proven. 1065 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 01:45:17,354 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:45:17,354 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [827940348] [2022-11-18 01:45:17,354 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [827940348] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 01:45:17,354 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1928813506] [2022-11-18 01:45:17,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:45:17,355 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:45:17,355 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 [2022-11-18 01:45:17,357 INFO L229 MonitoredProcess]: Starting monitored process 69 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 01:45:17,360 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (69)] Waiting until timeout for monitored process [2022-11-18 01:45:17,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:45:17,939 INFO L263 TraceCheckSpWp]: Trace formula consists of 698 conjuncts, 32 conjunts are in the unsatisfiable core [2022-11-18 01:45:17,942 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 01:45:18,147 INFO L134 CoverageAnalysis]: Checked inductivity of 1073 backedges. 0 proven. 1065 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 01:45:18,147 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 01:45:19,151 INFO L134 CoverageAnalysis]: Checked inductivity of 1073 backedges. 0 proven. 1065 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 01:45:19,151 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1928813506] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 01:45:19,151 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 01:45:19,151 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33, 33] total 66 [2022-11-18 01:45:19,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [977984365] [2022-11-18 01:45:19,152 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 01:45:19,152 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 66 states [2022-11-18 01:45:19,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:45:19,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2022-11-18 01:45:19,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1122, Invalid=3168, Unknown=0, NotChecked=0, Total=4290 [2022-11-18 01:45:19,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:19,155 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:45:19,155 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 66 states, 66 states have (on average 6.515151515151516) internal successors, (430), 66 states have internal predecessors, (430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:45:19,155 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:19,155 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:45:19,156 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:45:19,156 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:45:19,156 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:45:19,156 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-11-18 01:45:19,156 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2022-11-18 01:45:19,156 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:20,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:20,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:45:20,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:45:20,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:45:20,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:45:20,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-18 01:45:20,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-11-18 01:45:20,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2022-11-18 01:45:20,726 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (69)] Forceful destruction successful, exit code 0 [2022-11-18 01:45:20,921 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 69 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable134 [2022-11-18 01:45:20,921 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)] === [2022-11-18 01:45:20,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:45:20,921 INFO L85 PathProgramCache]: Analyzing trace with hash 1671797408, now seen corresponding path program 1 times [2022-11-18 01:45:20,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:45:20,921 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [530341232] [2022-11-18 01:45:20,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:45:20,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:45:21,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 01:45:21,046 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 01:45:21,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 01:45:21,130 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 01:45:21,130 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-18 01:45:21,130 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 7 remaining) [2022-11-18 01:45:21,131 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 7 remaining) [2022-11-18 01:45:21,131 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 7 remaining) [2022-11-18 01:45:21,131 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 7 remaining) [2022-11-18 01:45:21,131 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 7 remaining) [2022-11-18 01:45:21,131 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (1 of 7 remaining) [2022-11-18 01:45:21,132 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK (0 of 7 remaining) [2022-11-18 01:45:21,132 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable135 [2022-11-18 01:45:21,149 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 01:45:21,149 WARN L233 ceAbstractionStarter]: 18 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-18 01:45:21,149 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 19 thread instances. [2022-11-18 01:45:21,220 INFO L144 ThreadInstanceAdder]: Constructed 19 joinOtherThreadTransitions. [2022-11-18 01:45:21,226 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 01:45:21,227 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-11-18 01:45:21,227 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 [2022-11-18 01:45:21,228 INFO L229 MonitoredProcess]: Starting monitored process 70 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-11-18 01:45:21,237 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-11-18 01:45:21,238 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2022-11-18 01:45:21,238 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;@38e98ff3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 01:45:21,238 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-11-18 01:45:21,238 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (70)] Waiting until timeout for monitored process [2022-11-18 01:45:21,298 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)] === [2022-11-18 01:45:21,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:45:21,298 INFO L85 PathProgramCache]: Analyzing trace with hash 718923362, now seen corresponding path program 1 times [2022-11-18 01:45:21,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:45:21,299 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [363547512] [2022-11-18 01:45:21,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:45:21,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:45:21,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:45:21,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:45:21,320 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:45:21,321 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [363547512] [2022-11-18 01:45:21,321 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [363547512] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 01:45:21,321 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 01:45:21,321 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 01:45:21,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [110225236] [2022-11-18 01:45:21,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 01:45:21,322 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-18 01:45:21,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:45:21,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-18 01:45:21,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-18 01:45:21,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:21,323 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:45:21,323 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 27.5) internal successors, (55), 2 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:45:21,323 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:21,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:21,325 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable136 [2022-11-18 01:45:21,325 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)] === [2022-11-18 01:45:21,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:45:21,325 INFO L85 PathProgramCache]: Analyzing trace with hash -2068492125, now seen corresponding path program 1 times [2022-11-18 01:45:21,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:45:21,325 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2124627536] [2022-11-18 01:45:21,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:45:21,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:45:21,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:45:21,355 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:45:21,355 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:45:21,355 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2124627536] [2022-11-18 01:45:21,356 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2124627536] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 01:45:21,356 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 01:45:21,356 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 01:45:21,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2079418168] [2022-11-18 01:45:21,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 01:45:21,356 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 01:45:21,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:45:21,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 01:45:21,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 01:45:21,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:21,357 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:45:21,357 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:45:21,358 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:21,358 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:21,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:21,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:45:21,660 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable137 [2022-11-18 01:45:21,661 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)] === [2022-11-18 01:45:21,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:45:21,661 INFO L85 PathProgramCache]: Analyzing trace with hash -1344097016, now seen corresponding path program 1 times [2022-11-18 01:45:21,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:45:21,661 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [623812192] [2022-11-18 01:45:21,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:45:21,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:45:21,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:45:21,718 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:45:21,718 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:45:21,718 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [623812192] [2022-11-18 01:45:21,718 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [623812192] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 01:45:21,718 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [420126650] [2022-11-18 01:45:21,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:45:21,719 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:45:21,719 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 [2022-11-18 01:45:21,722 INFO L229 MonitoredProcess]: Starting monitored process 71 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 01:45:21,722 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (71)] Waiting until timeout for monitored process [2022-11-18 01:45:22,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:45:22,267 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 01:45:22,268 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 01:45:22,293 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:45:22,293 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 01:45:22,325 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:45:22,326 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [420126650] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 01:45:22,326 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 01:45:22,326 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-11-18 01:45:22,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2095911039] [2022-11-18 01:45:22,326 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 01:45:22,326 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-18 01:45:22,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:45:22,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-18 01:45:22,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-18 01:45:22,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:22,328 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:45:22,328 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.7) internal successors, (87), 10 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:45:22,328 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:22,328 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:45:22,328 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:22,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:22,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:45:22,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:45:22,563 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (71)] Forceful destruction successful, exit code 0 [2022-11-18 01:45:22,755 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable138,71 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:45:22,756 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)] === [2022-11-18 01:45:22,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:45:22,756 INFO L85 PathProgramCache]: Analyzing trace with hash 1407488597, now seen corresponding path program 1 times [2022-11-18 01:45:22,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:45:22,756 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [375063040] [2022-11-18 01:45:22,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:45:22,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:45:22,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:45:22,814 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-18 01:45:22,814 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:45:22,815 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [375063040] [2022-11-18 01:45:22,815 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [375063040] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 01:45:22,815 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 01:45:22,815 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 01:45:22,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855588246] [2022-11-18 01:45:22,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 01:45:22,815 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 01:45:22,815 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:45:22,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 01:45:22,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 01:45:22,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:22,816 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:45:22,817 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:45:22,817 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:22,817 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:45:22,817 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:45:22,817 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:22,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:22,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:45:22,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:45:22,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 01:45:22,962 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable139 [2022-11-18 01:45:22,962 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)] === [2022-11-18 01:45:22,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:45:22,962 INFO L85 PathProgramCache]: Analyzing trace with hash 583575902, now seen corresponding path program 1 times [2022-11-18 01:45:22,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:45:22,963 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1410978410] [2022-11-18 01:45:22,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:45:22,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:45:22,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:45:23,005 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-18 01:45:23,005 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:45:23,006 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1410978410] [2022-11-18 01:45:23,006 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1410978410] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 01:45:23,006 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 01:45:23,006 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 01:45:23,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1915489264] [2022-11-18 01:45:23,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 01:45:23,006 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 01:45:23,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:45:23,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 01:45:23,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 01:45:23,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:23,007 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:45:23,007 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:45:23,007 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:23,007 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:45:23,008 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:45:23,008 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-11-18 01:45:23,008 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:23,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:23,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:45:23,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:45:23,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:45:23,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:45:23,267 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable140 [2022-11-18 01:45:23,267 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)] === [2022-11-18 01:45:23,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:45:23,268 INFO L85 PathProgramCache]: Analyzing trace with hash 692314215, now seen corresponding path program 1 times [2022-11-18 01:45:23,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:45:23,268 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1082007343] [2022-11-18 01:45:23,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:45:23,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:45:23,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:45:23,348 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-18 01:45:23,349 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:45:23,349 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1082007343] [2022-11-18 01:45:23,349 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1082007343] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 01:45:23,351 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1493542920] [2022-11-18 01:45:23,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:45:23,351 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:45:23,351 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 [2022-11-18 01:45:23,352 INFO L229 MonitoredProcess]: Starting monitored process 72 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 01:45:23,355 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (72)] Waiting until timeout for monitored process [2022-11-18 01:45:23,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:45:23,904 INFO L263 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-18 01:45:23,906 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 01:45:24,002 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 01:45:24,002 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 01:45:24,128 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 01:45:24,129 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1493542920] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 01:45:24,129 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 01:45:24,129 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 9, 9] total 19 [2022-11-18 01:45:24,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [438326457] [2022-11-18 01:45:24,129 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 01:45:24,130 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-18 01:45:24,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:45:24,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-18 01:45:24,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=263, Unknown=0, NotChecked=0, Total=342 [2022-11-18 01:45:24,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:24,131 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:45:24,131 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 11.631578947368421) internal successors, (221), 19 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:45:24,131 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:24,132 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:45:24,132 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:45:24,132 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:45:24,132 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:45:24,132 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:24,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:24,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:45:24,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:45:24,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:45:24,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:45:24,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-18 01:45:24,814 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (72)] Forceful destruction successful, exit code 0 [2022-11-18 01:45:25,006 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable141,72 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:45:25,007 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)] === [2022-11-18 01:45:25,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:45:25,007 INFO L85 PathProgramCache]: Analyzing trace with hash -1288427337, now seen corresponding path program 1 times [2022-11-18 01:45:25,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:45:25,007 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1508467083] [2022-11-18 01:45:25,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:45:25,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:45:25,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:45:25,351 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 217 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 01:45:25,352 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:45:25,352 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1508467083] [2022-11-18 01:45:25,352 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1508467083] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 01:45:25,352 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1193728830] [2022-11-18 01:45:25,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:45:25,352 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:45:25,353 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 [2022-11-18 01:45:25,356 INFO L229 MonitoredProcess]: Starting monitored process 73 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 01:45:25,383 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (73)] Waiting until timeout for monitored process [2022-11-18 01:45:26,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:45:26,051 INFO L263 TraceCheckSpWp]: Trace formula consists of 490 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-18 01:45:26,055 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 01:45:26,174 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 217 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 01:45:26,174 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 01:45:26,470 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 217 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 01:45:26,470 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1193728830] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 01:45:26,471 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 01:45:26,471 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 34 [2022-11-18 01:45:26,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1545828665] [2022-11-18 01:45:26,471 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 01:45:26,471 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-11-18 01:45:26,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:45:26,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-11-18 01:45:26,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2022-11-18 01:45:26,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:26,472 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:45:26,472 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 7.9411764705882355) internal successors, (270), 34 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:45:26,472 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:26,473 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:45:26,473 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:45:26,473 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:45:26,473 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:45:26,473 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-11-18 01:45:26,473 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:28,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:28,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:45:28,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:45:28,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:45:28,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:45:28,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-18 01:45:28,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-11-18 01:45:28,225 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (73)] Ended with exit code 0 [2022-11-18 01:45:28,419 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable142,73 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:45:28,419 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)] === [2022-11-18 01:45:28,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:45:28,420 INFO L85 PathProgramCache]: Analyzing trace with hash 1088260379, now seen corresponding path program 1 times [2022-11-18 01:45:28,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:45:28,420 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [285305065] [2022-11-18 01:45:28,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:45:28,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:45:28,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:45:29,414 INFO L134 CoverageAnalysis]: Checked inductivity of 1073 backedges. 0 proven. 1065 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 01:45:29,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:45:29,415 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [285305065] [2022-11-18 01:45:29,415 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [285305065] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 01:45:29,415 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [79091056] [2022-11-18 01:45:29,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:45:29,416 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:45:29,416 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 [2022-11-18 01:45:29,420 INFO L229 MonitoredProcess]: Starting monitored process 74 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 01:45:29,443 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (74)] Waiting until timeout for monitored process [2022-11-18 01:45:30,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:45:30,095 INFO L263 TraceCheckSpWp]: Trace formula consists of 698 conjuncts, 32 conjunts are in the unsatisfiable core [2022-11-18 01:45:30,100 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 01:45:30,348 INFO L134 CoverageAnalysis]: Checked inductivity of 1073 backedges. 0 proven. 1065 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 01:45:30,348 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 01:45:31,405 INFO L134 CoverageAnalysis]: Checked inductivity of 1073 backedges. 0 proven. 1065 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 01:45:31,405 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [79091056] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 01:45:31,406 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 01:45:31,406 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33, 33] total 66 [2022-11-18 01:45:31,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [821502569] [2022-11-18 01:45:31,406 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 01:45:31,407 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 66 states [2022-11-18 01:45:31,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:45:31,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2022-11-18 01:45:31,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1122, Invalid=3168, Unknown=0, NotChecked=0, Total=4290 [2022-11-18 01:45:31,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:31,498 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:45:31,499 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 66 states, 66 states have (on average 6.515151515151516) internal successors, (430), 66 states have internal predecessors, (430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:45:31,499 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:31,499 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:45:31,499 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:45:31,499 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:45:31,499 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:45:31,499 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-11-18 01:45:31,499 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2022-11-18 01:45:31,499 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:33,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:33,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:45:33,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:45:33,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:45:33,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:45:33,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-18 01:45:33,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-11-18 01:45:33,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-11-18 01:45:33,283 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (74)] Forceful destruction successful, exit code 0 [2022-11-18 01:45:33,479 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable143,74 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:45:33,479 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)] === [2022-11-18 01:45:33,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:45:33,480 INFO L85 PathProgramCache]: Analyzing trace with hash 1324416387, now seen corresponding path program 1 times [2022-11-18 01:45:33,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:45:33,480 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1271856337] [2022-11-18 01:45:33,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:45:33,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:45:33,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 01:45:33,514 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 01:45:33,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 01:45:33,568 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 01:45:33,569 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-18 01:45:33,569 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 7 remaining) [2022-11-18 01:45:33,569 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 7 remaining) [2022-11-18 01:45:33,569 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 7 remaining) [2022-11-18 01:45:33,569 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 7 remaining) [2022-11-18 01:45:33,570 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 7 remaining) [2022-11-18 01:45:33,570 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (1 of 7 remaining) [2022-11-18 01:45:33,570 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK (0 of 7 remaining) [2022-11-18 01:45:33,570 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable144 [2022-11-18 01:45:33,574 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 01:45:33,574 WARN L233 ceAbstractionStarter]: 19 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-18 01:45:33,574 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 20 thread instances. [2022-11-18 01:45:33,630 INFO L144 ThreadInstanceAdder]: Constructed 20 joinOtherThreadTransitions. [2022-11-18 01:45:33,635 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 01:45:33,635 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-11-18 01:45:33,635 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 [2022-11-18 01:45:33,636 INFO L229 MonitoredProcess]: Starting monitored process 75 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-11-18 01:45:33,645 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-11-18 01:45:33,645 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2022-11-18 01:45:33,646 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;@38e98ff3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 01:45:33,646 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-11-18 01:45:33,655 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (75)] Waiting until timeout for monitored process [2022-11-18 01:45:33,670 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)] === [2022-11-18 01:45:33,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:45:33,671 INFO L85 PathProgramCache]: Analyzing trace with hash 544369402, now seen corresponding path program 1 times [2022-11-18 01:45:33,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:45:33,671 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1599500262] [2022-11-18 01:45:33,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:45:33,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:45:33,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:45:33,685 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:45:33,685 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:45:33,685 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1599500262] [2022-11-18 01:45:33,685 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1599500262] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 01:45:33,685 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 01:45:33,686 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 01:45:33,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1955497818] [2022-11-18 01:45:33,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 01:45:33,686 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-18 01:45:33,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:45:33,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-18 01:45:33,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-18 01:45:33,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:33,687 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:45:33,687 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 27.5) internal successors, (55), 2 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:45:33,687 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:33,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:33,688 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable145 [2022-11-18 01:45:33,688 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)] === [2022-11-18 01:45:33,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:45:33,688 INFO L85 PathProgramCache]: Analyzing trace with hash 2051921211, now seen corresponding path program 1 times [2022-11-18 01:45:33,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:45:33,689 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1961327052] [2022-11-18 01:45:33,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:45:33,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:45:33,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:45:33,712 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:45:33,713 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:45:33,713 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1961327052] [2022-11-18 01:45:33,713 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1961327052] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 01:45:33,713 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 01:45:33,713 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 01:45:33,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1345189912] [2022-11-18 01:45:33,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 01:45:33,714 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 01:45:33,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:45:33,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 01:45:33,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 01:45:33,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:33,715 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:45:33,715 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:45:33,716 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:33,716 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:33,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:33,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:45:33,978 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable146 [2022-11-18 01:45:33,978 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)] === [2022-11-18 01:45:33,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:45:33,978 INFO L85 PathProgramCache]: Analyzing trace with hash -297323332, now seen corresponding path program 1 times [2022-11-18 01:45:33,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:45:33,978 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1424968124] [2022-11-18 01:45:33,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:45:33,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:45:33,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:45:34,016 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:45:34,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:45:34,016 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1424968124] [2022-11-18 01:45:34,016 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1424968124] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 01:45:34,016 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [955614761] [2022-11-18 01:45:34,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:45:34,017 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:45:34,017 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 [2022-11-18 01:45:34,019 INFO L229 MonitoredProcess]: Starting monitored process 76 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 01:45:34,020 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (76)] Waiting until timeout for monitored process [2022-11-18 01:45:34,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:45:34,580 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 01:45:34,582 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 01:45:34,603 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:45:34,604 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 01:45:34,633 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:45:34,633 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [955614761] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 01:45:34,633 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 01:45:34,633 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-11-18 01:45:34,634 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1639133283] [2022-11-18 01:45:34,634 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 01:45:34,634 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-18 01:45:34,634 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:45:34,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-18 01:45:34,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-18 01:45:34,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:34,635 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:45:34,636 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.7) internal successors, (87), 10 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:45:34,636 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:34,636 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:45:34,636 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:34,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:34,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:45:34,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:45:34,858 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (76)] Forceful destruction successful, exit code 0 [2022-11-18 01:45:35,048 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 76 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable147 [2022-11-18 01:45:35,049 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)] === [2022-11-18 01:45:35,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:45:35,049 INFO L85 PathProgramCache]: Analyzing trace with hash 1817587521, now seen corresponding path program 1 times [2022-11-18 01:45:35,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:45:35,049 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1217992220] [2022-11-18 01:45:35,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:45:35,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:45:35,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:45:35,112 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-18 01:45:35,112 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:45:35,112 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1217992220] [2022-11-18 01:45:35,113 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1217992220] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 01:45:35,113 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 01:45:35,113 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 01:45:35,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [999532585] [2022-11-18 01:45:35,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 01:45:35,113 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 01:45:35,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:45:35,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 01:45:35,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 01:45:35,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:35,114 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:45:35,114 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:45:35,114 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:35,114 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:45:35,114 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:45:35,115 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:35,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:35,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:45:35,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:45:35,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 01:45:35,268 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable148 [2022-11-18 01:45:35,268 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)] === [2022-11-18 01:45:35,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:45:35,269 INFO L85 PathProgramCache]: Analyzing trace with hash -207231094, now seen corresponding path program 1 times [2022-11-18 01:45:35,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:45:35,269 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [144841357] [2022-11-18 01:45:35,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:45:35,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:45:35,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:45:35,298 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-18 01:45:35,299 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:45:35,299 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [144841357] [2022-11-18 01:45:35,299 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [144841357] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 01:45:35,299 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 01:45:35,299 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 01:45:35,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1521865369] [2022-11-18 01:45:35,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 01:45:35,300 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 01:45:35,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:45:35,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 01:45:35,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 01:45:35,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:35,300 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:45:35,301 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:45:35,301 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:35,301 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:45:35,301 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:45:35,301 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-11-18 01:45:35,301 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:35,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:35,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:45:35,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:45:35,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:45:35,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:45:35,645 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable149 [2022-11-18 01:45:35,645 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)] === [2022-11-18 01:45:35,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:45:35,645 INFO L85 PathProgramCache]: Analyzing trace with hash 1215662166, now seen corresponding path program 1 times [2022-11-18 01:45:35,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:45:35,645 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2012038816] [2022-11-18 01:45:35,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:45:35,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:45:35,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:45:35,705 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-18 01:45:35,706 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:45:35,706 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2012038816] [2022-11-18 01:45:35,706 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2012038816] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 01:45:35,706 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1062498142] [2022-11-18 01:45:35,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:45:35,706 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:45:35,706 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 [2022-11-18 01:45:35,707 INFO L229 MonitoredProcess]: Starting monitored process 77 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 01:45:35,709 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (77)] Waiting until timeout for monitored process [2022-11-18 01:45:36,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:45:36,297 INFO L263 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-18 01:45:36,299 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 01:45:36,382 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 01:45:36,382 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 01:45:36,487 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 01:45:36,488 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1062498142] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 01:45:36,488 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 01:45:36,488 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 9, 9] total 19 [2022-11-18 01:45:36,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [472503383] [2022-11-18 01:45:36,488 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 01:45:36,488 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-18 01:45:36,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:45:36,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-18 01:45:36,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=263, Unknown=0, NotChecked=0, Total=342 [2022-11-18 01:45:36,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:36,489 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:45:36,489 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 11.631578947368421) internal successors, (221), 19 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:45:36,489 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:36,490 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:45:36,490 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:45:36,490 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:45:36,490 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:45:36,490 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:37,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:37,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:45:37,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:45:37,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:45:37,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:45:37,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-18 01:45:37,253 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (77)] Ended with exit code 0 [2022-11-18 01:45:37,451 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable150,77 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:45:37,451 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)] === [2022-11-18 01:45:37,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:45:37,452 INFO L85 PathProgramCache]: Analyzing trace with hash -359259309, now seen corresponding path program 1 times [2022-11-18 01:45:37,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:45:37,452 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [239370526] [2022-11-18 01:45:37,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:45:37,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:45:37,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:45:37,698 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 217 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 01:45:37,698 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:45:37,698 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [239370526] [2022-11-18 01:45:37,698 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [239370526] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 01:45:37,698 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1404045469] [2022-11-18 01:45:37,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:45:37,698 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:45:37,698 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 [2022-11-18 01:45:37,701 INFO L229 MonitoredProcess]: Starting monitored process 78 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 01:45:37,703 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (78)] Waiting until timeout for monitored process [2022-11-18 01:45:38,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:45:38,327 INFO L263 TraceCheckSpWp]: Trace formula consists of 490 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-18 01:45:38,329 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 01:45:38,460 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 217 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 01:45:38,460 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 01:45:38,754 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 217 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 01:45:38,754 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1404045469] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 01:45:38,755 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 01:45:38,755 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 34 [2022-11-18 01:45:38,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581927863] [2022-11-18 01:45:38,755 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 01:45:38,755 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-11-18 01:45:38,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:45:38,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-11-18 01:45:38,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2022-11-18 01:45:38,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:38,756 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:45:38,756 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 7.9411764705882355) internal successors, (270), 34 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:45:38,756 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:38,757 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:45:38,757 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:45:38,757 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:45:38,757 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:45:38,757 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-11-18 01:45:38,757 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:40,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:40,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:45:40,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:45:40,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:45:40,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:45:40,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-18 01:45:40,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-11-18 01:45:40,362 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (78)] Ended with exit code 0 [2022-11-18 01:45:40,557 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable151,78 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:45:40,557 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)] === [2022-11-18 01:45:40,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:45:40,557 INFO L85 PathProgramCache]: Analyzing trace with hash 1600390743, now seen corresponding path program 1 times [2022-11-18 01:45:40,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:45:40,557 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [537774519] [2022-11-18 01:45:40,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:45:40,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:45:40,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:45:41,565 INFO L134 CoverageAnalysis]: Checked inductivity of 1073 backedges. 0 proven. 1065 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 01:45:41,565 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:45:41,565 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [537774519] [2022-11-18 01:45:41,566 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [537774519] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 01:45:41,566 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1631905344] [2022-11-18 01:45:41,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:45:41,566 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:45:41,566 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 [2022-11-18 01:45:41,567 INFO L229 MonitoredProcess]: Starting monitored process 79 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 01:45:41,569 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (79)] Waiting until timeout for monitored process [2022-11-18 01:45:42,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:45:42,241 INFO L263 TraceCheckSpWp]: Trace formula consists of 698 conjuncts, 32 conjunts are in the unsatisfiable core [2022-11-18 01:45:42,243 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 01:45:42,447 INFO L134 CoverageAnalysis]: Checked inductivity of 1073 backedges. 0 proven. 1065 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 01:45:42,447 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 01:45:43,513 INFO L134 CoverageAnalysis]: Checked inductivity of 1073 backedges. 0 proven. 1065 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 01:45:43,513 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1631905344] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 01:45:43,513 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 01:45:43,514 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33, 33] total 66 [2022-11-18 01:45:43,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749163453] [2022-11-18 01:45:43,514 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 01:45:43,514 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 66 states [2022-11-18 01:45:43,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:45:43,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2022-11-18 01:45:43,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1122, Invalid=3168, Unknown=0, NotChecked=0, Total=4290 [2022-11-18 01:45:43,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:43,517 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:45:43,519 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 66 states, 66 states have (on average 6.515151515151516) internal successors, (430), 66 states have internal predecessors, (430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:45:43,519 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:43,520 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:45:43,520 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:45:43,520 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:45:43,520 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:45:43,520 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-11-18 01:45:43,520 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2022-11-18 01:45:43,520 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:45,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:45,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:45:45,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:45:45,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:45:45,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:45:45,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-18 01:45:45,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-11-18 01:45:45,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2022-11-18 01:45:45,530 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (79)] Forceful destruction successful, exit code 0 [2022-11-18 01:45:45,721 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable152,79 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:45:45,721 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)] === [2022-11-18 01:45:45,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:45:45,722 INFO L85 PathProgramCache]: Analyzing trace with hash 1435527135, now seen corresponding path program 1 times [2022-11-18 01:45:45,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:45:45,722 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1041868406] [2022-11-18 01:45:45,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:45:45,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:45:45,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 01:45:45,759 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 01:45:45,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 01:45:45,829 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 01:45:45,829 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-18 01:45:45,830 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 7 remaining) [2022-11-18 01:45:45,830 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 7 remaining) [2022-11-18 01:45:45,830 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 7 remaining) [2022-11-18 01:45:45,830 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 7 remaining) [2022-11-18 01:45:45,830 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 7 remaining) [2022-11-18 01:45:45,830 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (1 of 7 remaining) [2022-11-18 01:45:45,831 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK (0 of 7 remaining) [2022-11-18 01:45:45,831 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable153 [2022-11-18 01:45:45,841 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 01:45:45,842 WARN L233 ceAbstractionStarter]: 20 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-18 01:45:45,842 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 21 thread instances. [2022-11-18 01:45:45,904 INFO L144 ThreadInstanceAdder]: Constructed 21 joinOtherThreadTransitions. [2022-11-18 01:45:45,909 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 01:45:45,909 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-11-18 01:45:45,909 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 [2022-11-18 01:45:45,910 INFO L229 MonitoredProcess]: Starting monitored process 80 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-11-18 01:45:45,920 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-11-18 01:45:45,920 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2022-11-18 01:45:45,920 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;@38e98ff3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 01:45:45,920 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-11-18 01:45:45,936 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (80)] Waiting until timeout for monitored process [2022-11-18 01:45:45,954 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)] === [2022-11-18 01:45:45,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:45:45,955 INFO L85 PathProgramCache]: Analyzing trace with hash 985864146, now seen corresponding path program 1 times [2022-11-18 01:45:45,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:45:45,955 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [231103451] [2022-11-18 01:45:45,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:45:45,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:45:45,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:45:45,974 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:45:45,975 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:45:45,975 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [231103451] [2022-11-18 01:45:45,975 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [231103451] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 01:45:45,975 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 01:45:45,975 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 01:45:45,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240397553] [2022-11-18 01:45:45,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 01:45:45,976 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-18 01:45:45,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:45:45,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-18 01:45:45,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-18 01:45:45,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:45,977 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:45:45,977 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 27.5) internal successors, (55), 2 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:45:45,977 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:45,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:45,979 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable154 [2022-11-18 01:45:45,979 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)] === [2022-11-18 01:45:45,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:45:45,979 INFO L85 PathProgramCache]: Analyzing trace with hash -1801551341, now seen corresponding path program 1 times [2022-11-18 01:45:45,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:45:45,980 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [507664930] [2022-11-18 01:45:45,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:45:45,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:45:45,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:45:46,008 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:45:46,008 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:45:46,008 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [507664930] [2022-11-18 01:45:46,009 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [507664930] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 01:45:46,009 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 01:45:46,009 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 01:45:46,009 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [107543173] [2022-11-18 01:45:46,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 01:45:46,009 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 01:45:46,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:45:46,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 01:45:46,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 01:45:46,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:46,011 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:45:46,011 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:45:46,011 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:46,011 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:46,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:46,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:45:46,378 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable155 [2022-11-18 01:45:46,378 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)] === [2022-11-18 01:45:46,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:45:46,379 INFO L85 PathProgramCache]: Analyzing trace with hash -2035632976, now seen corresponding path program 1 times [2022-11-18 01:45:46,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:45:46,379 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1476289879] [2022-11-18 01:45:46,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:45:46,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:45:46,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:45:46,418 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:45:46,418 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:45:46,418 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1476289879] [2022-11-18 01:45:46,418 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1476289879] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 01:45:46,418 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1728852218] [2022-11-18 01:45:46,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:45:46,418 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:45:46,419 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 [2022-11-18 01:45:46,421 INFO L229 MonitoredProcess]: Starting monitored process 81 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 01:45:46,422 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (81)] Waiting until timeout for monitored process [2022-11-18 01:45:47,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:45:47,052 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 01:45:47,053 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 01:45:47,075 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:45:47,075 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 01:45:47,104 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:45:47,104 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1728852218] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 01:45:47,104 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 01:45:47,104 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-11-18 01:45:47,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982528030] [2022-11-18 01:45:47,104 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 01:45:47,105 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-18 01:45:47,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:45:47,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-18 01:45:47,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-18 01:45:47,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:47,106 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:45:47,106 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.7) internal successors, (87), 10 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:45:47,106 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:47,106 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:45:47,107 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:47,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:47,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:45:47,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:45:47,291 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (81)] Ended with exit code 0 [2022-11-18 01:45:47,486 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 81 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable156 [2022-11-18 01:45:47,486 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)] === [2022-11-18 01:45:47,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:45:47,487 INFO L85 PathProgramCache]: Analyzing trace with hash -1865778067, now seen corresponding path program 1 times [2022-11-18 01:45:47,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:45:47,487 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [867273697] [2022-11-18 01:45:47,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:45:47,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:45:47,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:45:47,547 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-18 01:45:47,547 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:45:47,547 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [867273697] [2022-11-18 01:45:47,548 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [867273697] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 01:45:47,548 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 01:45:47,548 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 01:45:47,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [693147723] [2022-11-18 01:45:47,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 01:45:47,548 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 01:45:47,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:45:47,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 01:45:47,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 01:45:47,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:47,550 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:45:47,550 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:45:47,550 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:47,550 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:45:47,550 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:45:47,550 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:47,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:47,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:45:47,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:45:47,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 01:45:47,694 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable157 [2022-11-18 01:45:47,694 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)] === [2022-11-18 01:45:47,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:45:47,694 INFO L85 PathProgramCache]: Analyzing trace with hash -1867209290, now seen corresponding path program 1 times [2022-11-18 01:45:47,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:45:47,694 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [497770330] [2022-11-18 01:45:47,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:45:47,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:45:47,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:45:47,724 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-18 01:45:47,725 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:45:47,725 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [497770330] [2022-11-18 01:45:47,725 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [497770330] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 01:45:47,725 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 01:45:47,725 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 01:45:47,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1978518854] [2022-11-18 01:45:47,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 01:45:47,725 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 01:45:47,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:45:47,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 01:45:47,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 01:45:47,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:47,727 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:45:47,727 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:45:47,727 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:47,728 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:45:47,728 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:45:47,728 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-11-18 01:45:47,728 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:47,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:47,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:45:47,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:45:47,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:45:47,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:45:47,997 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable158 [2022-11-18 01:45:47,997 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)] === [2022-11-18 01:45:47,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:45:47,998 INFO L85 PathProgramCache]: Analyzing trace with hash 234235397, now seen corresponding path program 1 times [2022-11-18 01:45:47,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:45:47,998 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1317301968] [2022-11-18 01:45:47,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:45:47,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:45:48,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:45:48,063 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-18 01:45:48,063 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:45:48,063 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1317301968] [2022-11-18 01:45:48,064 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1317301968] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 01:45:48,064 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2010153960] [2022-11-18 01:45:48,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:45:48,064 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:45:48,064 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 [2022-11-18 01:45:48,065 INFO L229 MonitoredProcess]: Starting monitored process 82 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 01:45:48,067 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (82)] Waiting until timeout for monitored process [2022-11-18 01:45:48,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:45:48,706 INFO L263 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-18 01:45:48,707 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 01:45:48,784 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 01:45:48,784 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 01:45:48,913 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 01:45:48,913 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2010153960] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 01:45:48,913 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 01:45:48,913 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 9, 9] total 19 [2022-11-18 01:45:48,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264352956] [2022-11-18 01:45:48,913 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 01:45:48,914 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-18 01:45:48,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:45:48,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-18 01:45:48,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=263, Unknown=0, NotChecked=0, Total=342 [2022-11-18 01:45:48,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:48,915 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:45:48,915 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 11.631578947368421) internal successors, (221), 19 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:45:48,915 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:48,915 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:45:48,915 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:45:48,915 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:45:48,916 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:45:48,916 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:49,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:49,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:45:49,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:45:49,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:45:49,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:45:49,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-18 01:45:49,580 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (82)] Forceful destruction successful, exit code 0 [2022-11-18 01:45:49,774 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 82 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable159 [2022-11-18 01:45:49,775 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)] === [2022-11-18 01:45:49,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:45:49,775 INFO L85 PathProgramCache]: Analyzing trace with hash 1050036719, now seen corresponding path program 1 times [2022-11-18 01:45:49,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:45:49,775 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [909342138] [2022-11-18 01:45:49,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:45:49,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:45:49,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:45:50,029 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 217 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 01:45:50,029 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:45:50,029 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [909342138] [2022-11-18 01:45:50,029 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [909342138] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 01:45:50,029 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1730239496] [2022-11-18 01:45:50,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:45:50,030 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:45:50,030 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 [2022-11-18 01:45:50,031 INFO L229 MonitoredProcess]: Starting monitored process 83 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 01:45:50,033 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (83)] Waiting until timeout for monitored process [2022-11-18 01:45:50,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:45:50,706 INFO L263 TraceCheckSpWp]: Trace formula consists of 490 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-18 01:45:50,708 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 01:45:50,806 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 217 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 01:45:50,806 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 01:45:51,126 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 217 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 01:45:51,126 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1730239496] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 01:45:51,126 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 01:45:51,126 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 34 [2022-11-18 01:45:51,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1604201288] [2022-11-18 01:45:51,127 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 01:45:51,127 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-11-18 01:45:51,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:45:51,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-11-18 01:45:51,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2022-11-18 01:45:51,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:51,129 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:45:51,129 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 7.9411764705882355) internal successors, (270), 34 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:45:51,129 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:51,129 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:45:51,129 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:45:51,129 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:45:51,129 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:45:51,129 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-11-18 01:45:51,129 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:52,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:52,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:45:52,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:45:52,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:45:52,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:45:52,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-18 01:45:52,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-11-18 01:45:52,801 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (83)] Forceful destruction successful, exit code 0 [2022-11-18 01:45:52,995 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable160,83 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:45:52,995 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)] === [2022-11-18 01:45:52,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:45:52,995 INFO L85 PathProgramCache]: Analyzing trace with hash 544374163, now seen corresponding path program 1 times [2022-11-18 01:45:52,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:45:52,996 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1020791416] [2022-11-18 01:45:52,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:45:52,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:45:53,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:45:53,749 INFO L134 CoverageAnalysis]: Checked inductivity of 1073 backedges. 0 proven. 1065 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 01:45:53,749 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:45:53,749 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1020791416] [2022-11-18 01:45:53,749 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1020791416] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 01:45:53,749 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1606402984] [2022-11-18 01:45:53,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:45:53,749 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:45:53,749 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 [2022-11-18 01:45:53,750 INFO L229 MonitoredProcess]: Starting monitored process 84 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 01:45:53,752 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (84)] Waiting until timeout for monitored process [2022-11-18 01:45:54,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:45:54,482 INFO L263 TraceCheckSpWp]: Trace formula consists of 698 conjuncts, 32 conjunts are in the unsatisfiable core [2022-11-18 01:45:54,485 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 01:45:54,684 INFO L134 CoverageAnalysis]: Checked inductivity of 1073 backedges. 0 proven. 1065 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 01:45:54,684 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 01:45:55,690 INFO L134 CoverageAnalysis]: Checked inductivity of 1073 backedges. 0 proven. 1065 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 01:45:55,690 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1606402984] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 01:45:55,690 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 01:45:55,690 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33, 33] total 66 [2022-11-18 01:45:55,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2147441763] [2022-11-18 01:45:55,691 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 01:45:55,691 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 66 states [2022-11-18 01:45:55,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:45:55,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2022-11-18 01:45:55,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1122, Invalid=3168, Unknown=0, NotChecked=0, Total=4290 [2022-11-18 01:45:55,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:55,692 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:45:55,693 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 66 states, 66 states have (on average 6.515151515151516) internal successors, (430), 66 states have internal predecessors, (430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:45:55,693 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:55,693 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:45:55,693 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:45:55,693 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:45:55,693 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:45:55,693 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-11-18 01:45:55,693 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2022-11-18 01:45:55,693 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:57,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:57,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:45:57,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:45:57,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:45:57,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:45:57,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-18 01:45:57,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-11-18 01:45:57,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2022-11-18 01:45:57,927 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (84)] Forceful destruction successful, exit code 0 [2022-11-18 01:45:58,120 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable161,84 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:45:58,120 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)] === [2022-11-18 01:45:58,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:45:58,120 INFO L85 PathProgramCache]: Analyzing trace with hash 1835842420, now seen corresponding path program 1 times [2022-11-18 01:45:58,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:45:58,121 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [668905411] [2022-11-18 01:45:58,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:45:58,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:45:58,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 01:45:58,162 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 01:45:58,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 01:45:58,225 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 01:45:58,225 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-18 01:45:58,225 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 7 remaining) [2022-11-18 01:45:58,225 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 7 remaining) [2022-11-18 01:45:58,225 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 7 remaining) [2022-11-18 01:45:58,225 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 7 remaining) [2022-11-18 01:45:58,225 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 7 remaining) [2022-11-18 01:45:58,226 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (1 of 7 remaining) [2022-11-18 01:45:58,226 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK (0 of 7 remaining) [2022-11-18 01:45:58,226 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable162 [2022-11-18 01:45:58,229 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 01:45:58,229 WARN L233 ceAbstractionStarter]: 21 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-18 01:45:58,229 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 22 thread instances. [2022-11-18 01:45:58,292 INFO L144 ThreadInstanceAdder]: Constructed 22 joinOtherThreadTransitions. [2022-11-18 01:45:58,297 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 01:45:58,297 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-11-18 01:45:58,298 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 [2022-11-18 01:45:58,300 INFO L229 MonitoredProcess]: Starting monitored process 85 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-11-18 01:45:58,309 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-11-18 01:45:58,309 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2022-11-18 01:45:58,310 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;@38e98ff3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 01:45:58,310 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-11-18 01:45:58,327 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (85)] Waiting until timeout for monitored process [2022-11-18 01:45:58,361 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)] === [2022-11-18 01:45:58,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:45:58,361 INFO L85 PathProgramCache]: Analyzing trace with hash 2043407594, now seen corresponding path program 1 times [2022-11-18 01:45:58,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:45:58,361 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1310327036] [2022-11-18 01:45:58,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:45:58,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:45:58,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:45:58,382 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:45:58,382 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:45:58,383 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1310327036] [2022-11-18 01:45:58,383 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1310327036] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 01:45:58,383 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 01:45:58,383 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 01:45:58,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1523767857] [2022-11-18 01:45:58,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 01:45:58,384 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-18 01:45:58,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:45:58,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-18 01:45:58,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-18 01:45:58,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:58,385 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:45:58,385 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 27.5) internal successors, (55), 2 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:45:58,385 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:58,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:45:58,386 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable163 [2022-11-18 01:45:58,387 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)] === [2022-11-18 01:45:58,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:45:58,387 INFO L85 PathProgramCache]: Analyzing trace with hash -744007893, now seen corresponding path program 1 times [2022-11-18 01:45:58,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:45:58,387 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1286402054] [2022-11-18 01:45:58,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:45:58,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:45:58,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:45:58,419 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:45:58,419 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:45:58,419 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1286402054] WARNING: YOUR LOGFILE WAS TOO LONG, SOME LINES IN THE MIDDLE WERE REMOVED. [2022-11-18 01:46:47,113 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:46:47,113 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:46:47,113 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:46:47,113 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:46:47,113 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:46:47,113 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:46:47,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:46:47,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:46:47,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:46:47,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:46:47,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:46:47,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-18 01:46:47,966 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (102)] Forceful destruction successful, exit code 0 [2022-11-18 01:46:48,159 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable195,102 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:46:48,159 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)] === [2022-11-18 01:46:48,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:46:48,160 INFO L85 PathProgramCache]: Analyzing trace with hash 670537311, now seen corresponding path program 1 times [2022-11-18 01:46:48,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:46:48,160 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [526600910] [2022-11-18 01:46:48,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:46:48,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:46:48,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:46:48,470 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 217 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 01:46:48,470 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:46:48,471 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [526600910] [2022-11-18 01:46:48,471 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [526600910] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 01:46:48,471 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [771360256] [2022-11-18 01:46:48,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:46:48,471 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:46:48,471 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 [2022-11-18 01:46:48,474 INFO L229 MonitoredProcess]: Starting monitored process 103 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 01:46:48,475 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (103)] Waiting until timeout for monitored process [2022-11-18 01:46:49,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:46:49,396 INFO L263 TraceCheckSpWp]: Trace formula consists of 490 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-18 01:46:49,397 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 01:46:49,505 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 217 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 01:46:49,506 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 01:46:49,814 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 217 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 01:46:49,814 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [771360256] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 01:46:49,815 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 01:46:49,815 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 34 [2022-11-18 01:46:49,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1565415146] [2022-11-18 01:46:49,816 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 01:46:49,816 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-11-18 01:46:49,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:46:49,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-11-18 01:46:49,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2022-11-18 01:46:49,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:46:49,817 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:46:49,818 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 7.9411764705882355) internal successors, (270), 34 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:46:49,818 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:46:49,818 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:46:49,818 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:46:49,818 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:46:49,818 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:46:49,818 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-11-18 01:46:49,818 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:46:51,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:46:51,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:46:51,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:46:51,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:46:51,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:46:51,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-18 01:46:51,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-11-18 01:46:51,998 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (103)] Forceful destruction successful, exit code 0 [2022-11-18 01:46:52,191 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable196,103 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:46:52,191 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)] === [2022-11-18 01:46:52,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:46:52,192 INFO L85 PathProgramCache]: Analyzing trace with hash -56611709, now seen corresponding path program 1 times [2022-11-18 01:46:52,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:46:52,192 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1161899095] [2022-11-18 01:46:52,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:46:52,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:46:52,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:46:53,279 INFO L134 CoverageAnalysis]: Checked inductivity of 1073 backedges. 0 proven. 1065 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 01:46:53,279 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:46:53,280 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1161899095] [2022-11-18 01:46:53,280 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1161899095] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 01:46:53,280 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1289542727] [2022-11-18 01:46:53,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:46:53,280 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:46:53,280 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 [2022-11-18 01:46:53,281 INFO L229 MonitoredProcess]: Starting monitored process 104 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 01:46:53,283 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (104)] Waiting until timeout for monitored process [2022-11-18 01:46:54,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:46:54,316 INFO L263 TraceCheckSpWp]: Trace formula consists of 698 conjuncts, 32 conjunts are in the unsatisfiable core [2022-11-18 01:46:54,318 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 01:46:54,525 INFO L134 CoverageAnalysis]: Checked inductivity of 1073 backedges. 0 proven. 1065 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 01:46:54,525 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 01:46:55,577 INFO L134 CoverageAnalysis]: Checked inductivity of 1073 backedges. 0 proven. 1065 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 01:46:55,578 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1289542727] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 01:46:55,578 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 01:46:55,578 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33, 33] total 66 [2022-11-18 01:46:55,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217439604] [2022-11-18 01:46:55,578 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 01:46:55,579 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 66 states [2022-11-18 01:46:55,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:46:55,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2022-11-18 01:46:55,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1122, Invalid=3168, Unknown=0, NotChecked=0, Total=4290 [2022-11-18 01:46:55,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:46:55,581 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:46:55,581 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 66 states, 66 states have (on average 6.515151515151516) internal successors, (430), 66 states have internal predecessors, (430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:46:55,581 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:46:55,581 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:46:55,581 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:46:55,581 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:46:55,581 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:46:55,581 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-11-18 01:46:55,581 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2022-11-18 01:46:55,581 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:46:59,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:46:59,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:46:59,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:46:59,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:46:59,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:46:59,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-18 01:46:59,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-11-18 01:46:59,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2022-11-18 01:46:59,223 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (104)] Forceful destruction successful, exit code 0 [2022-11-18 01:46:59,415 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable197,104 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:46:59,415 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)] === [2022-11-18 01:46:59,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:46:59,415 INFO L85 PathProgramCache]: Analyzing trace with hash 312375554, now seen corresponding path program 1 times [2022-11-18 01:46:59,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:46:59,415 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1769177042] [2022-11-18 01:46:59,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:46:59,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:46:59,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 01:46:59,465 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 01:46:59,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 01:46:59,536 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 01:46:59,537 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-18 01:46:59,537 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 7 remaining) [2022-11-18 01:46:59,537 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 7 remaining) [2022-11-18 01:46:59,537 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 7 remaining) [2022-11-18 01:46:59,537 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 7 remaining) [2022-11-18 01:46:59,538 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 7 remaining) [2022-11-18 01:46:59,538 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (1 of 7 remaining) [2022-11-18 01:46:59,538 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK (0 of 7 remaining) [2022-11-18 01:46:59,538 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable198 [2022-11-18 01:46:59,542 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 01:46:59,542 WARN L233 ceAbstractionStarter]: 25 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-18 01:46:59,542 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 26 thread instances. [2022-11-18 01:46:59,615 INFO L144 ThreadInstanceAdder]: Constructed 26 joinOtherThreadTransitions. [2022-11-18 01:46:59,621 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 01:46:59,621 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-11-18 01:46:59,621 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 [2022-11-18 01:46:59,623 INFO L229 MonitoredProcess]: Starting monitored process 105 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-11-18 01:46:59,633 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-11-18 01:46:59,634 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2022-11-18 01:46:59,634 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;@38e98ff3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 01:46:59,634 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-11-18 01:46:59,647 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (105)] Waiting until timeout for monitored process [2022-11-18 01:46:59,659 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)] === [2022-11-18 01:46:59,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:46:59,659 INFO L85 PathProgramCache]: Analyzing trace with hash -450833462, now seen corresponding path program 1 times [2022-11-18 01:46:59,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:46:59,659 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1812813159] [2022-11-18 01:46:59,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:46:59,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:46:59,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:46:59,680 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:46:59,680 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:46:59,680 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1812813159] [2022-11-18 01:46:59,680 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1812813159] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 01:46:59,680 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 01:46:59,680 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 01:46:59,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [110632920] [2022-11-18 01:46:59,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 01:46:59,681 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-18 01:46:59,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:46:59,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-18 01:46:59,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-18 01:46:59,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:46:59,682 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:46:59,682 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 27.5) internal successors, (55), 2 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:46:59,682 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:46:59,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:46:59,683 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable199 [2022-11-18 01:46:59,683 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)] === [2022-11-18 01:46:59,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:46:59,683 INFO L85 PathProgramCache]: Analyzing trace with hash 1056718347, now seen corresponding path program 1 times [2022-11-18 01:46:59,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:46:59,684 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [524307180] [2022-11-18 01:46:59,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:46:59,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:46:59,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:46:59,711 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:46:59,712 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:46:59,712 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [524307180] [2022-11-18 01:46:59,712 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [524307180] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 01:46:59,712 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 01:46:59,712 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 01:46:59,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1060980467] [2022-11-18 01:46:59,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 01:46:59,712 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 01:46:59,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:46:59,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 01:46:59,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 01:46:59,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:46:59,713 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:46:59,713 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:46:59,713 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:46:59,714 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:47:00,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:47:00,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:47:00,107 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable200 [2022-11-18 01:47:00,107 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)] === [2022-11-18 01:47:00,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:47:00,108 INFO L85 PathProgramCache]: Analyzing trace with hash -963823564, now seen corresponding path program 1 times [2022-11-18 01:47:00,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:47:00,108 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [784459726] [2022-11-18 01:47:00,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:47:00,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:47:00,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:47:00,160 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:47:00,161 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:47:00,161 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [784459726] [2022-11-18 01:47:00,161 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [784459726] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 01:47:00,161 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [660474538] [2022-11-18 01:47:00,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:47:00,161 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:47:00,162 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 [2022-11-18 01:47:00,166 INFO L229 MonitoredProcess]: Starting monitored process 106 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 01:47:00,172 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (106)] Waiting until timeout for monitored process [2022-11-18 01:47:01,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:47:01,065 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 01:47:01,066 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 01:47:01,089 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:47:01,089 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 01:47:01,121 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:47:01,121 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [660474538] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 01:47:01,122 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 01:47:01,122 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-11-18 01:47:01,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825188929] [2022-11-18 01:47:01,122 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 01:47:01,122 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-18 01:47:01,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:47:01,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-18 01:47:01,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-18 01:47:01,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:47:01,123 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:47:01,124 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.7) internal successors, (87), 10 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:47:01,124 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:47:01,124 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:47:01,124 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:47:01,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:47:01,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:47:01,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:47:01,389 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (106)] Forceful destruction successful, exit code 0 [2022-11-18 01:47:01,581 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 106 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable201 [2022-11-18 01:47:01,581 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)] === [2022-11-18 01:47:01,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:47:01,581 INFO L85 PathProgramCache]: Analyzing trace with hash -80195063, now seen corresponding path program 1 times [2022-11-18 01:47:01,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:47:01,581 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1969912598] [2022-11-18 01:47:01,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:47:01,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:47:01,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:47:01,650 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-18 01:47:01,650 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:47:01,650 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1969912598] [2022-11-18 01:47:01,650 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1969912598] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 01:47:01,650 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 01:47:01,650 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 01:47:01,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195711279] [2022-11-18 01:47:01,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 01:47:01,651 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 01:47:01,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:47:01,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 01:47:01,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 01:47:01,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:47:01,652 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:47:01,652 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:47:01,652 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:47:01,652 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:47:01,652 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:47:01,652 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:47:01,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:47:01,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:47:01,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:47:01,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 01:47:01,845 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable202 [2022-11-18 01:47:01,845 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)] === [2022-11-18 01:47:01,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:47:01,846 INFO L85 PathProgramCache]: Analyzing trace with hash -1729831790, now seen corresponding path program 1 times [2022-11-18 01:47:01,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:47:01,846 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1274132299] [2022-11-18 01:47:01,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:47:01,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:47:01,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:47:01,888 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-18 01:47:01,888 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:47:01,888 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1274132299] [2022-11-18 01:47:01,888 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1274132299] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 01:47:01,888 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 01:47:01,888 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 01:47:01,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [836600549] [2022-11-18 01:47:01,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 01:47:01,889 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 01:47:01,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:47:01,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 01:47:01,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 01:47:01,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:47:01,890 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:47:01,890 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:47:01,890 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:47:01,890 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:47:01,890 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:47:01,890 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-11-18 01:47:01,891 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:47:02,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:47:02,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:47:02,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:47:02,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:47:02,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:47:02,419 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable203 [2022-11-18 01:47:02,419 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)] === [2022-11-18 01:47:02,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:47:02,419 INFO L85 PathProgramCache]: Analyzing trace with hash 1075378736, now seen corresponding path program 1 times [2022-11-18 01:47:02,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:47:02,419 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [448170112] [2022-11-18 01:47:02,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:47:02,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:47:02,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:47:02,498 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-18 01:47:02,498 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:47:02,498 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [448170112] [2022-11-18 01:47:02,498 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [448170112] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 01:47:02,498 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2065976009] [2022-11-18 01:47:02,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:47:02,498 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:47:02,499 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 [2022-11-18 01:47:02,500 INFO L229 MonitoredProcess]: Starting monitored process 107 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 01:47:02,502 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (107)] Waiting until timeout for monitored process [2022-11-18 01:47:03,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:47:03,434 INFO L263 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-18 01:47:03,436 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 01:47:03,524 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 01:47:03,524 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 01:47:03,641 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 01:47:03,641 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2065976009] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 01:47:03,641 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 01:47:03,642 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 9, 9] total 19 [2022-11-18 01:47:03,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750196045] [2022-11-18 01:47:03,642 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 01:47:03,642 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-18 01:47:03,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:47:03,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-18 01:47:03,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=263, Unknown=0, NotChecked=0, Total=342 [2022-11-18 01:47:03,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:47:03,644 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:47:03,644 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 11.631578947368421) internal successors, (221), 19 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:47:03,644 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:47:03,644 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:47:03,645 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:47:03,645 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:47:03,645 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:47:03,645 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:47:04,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:47:04,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:47:04,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:47:04,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:47:04,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:47:04,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-18 01:47:04,548 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (107)] Ended with exit code 0 [2022-11-18 01:47:04,740 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable204,107 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:47:04,740 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)] === [2022-11-18 01:47:04,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:47:04,740 INFO L85 PathProgramCache]: Analyzing trace with hash -2033869061, now seen corresponding path program 1 times [2022-11-18 01:47:04,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:47:04,741 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [202782153] [2022-11-18 01:47:04,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:47:04,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:47:04,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:47:05,044 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 217 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 01:47:05,044 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:47:05,044 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [202782153] [2022-11-18 01:47:05,044 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [202782153] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 01:47:05,044 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [878302230] [2022-11-18 01:47:05,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:47:05,045 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:47:05,045 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 [2022-11-18 01:47:05,046 INFO L229 MonitoredProcess]: Starting monitored process 108 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 01:47:05,049 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (108)] Waiting until timeout for monitored process [2022-11-18 01:47:06,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:47:06,087 INFO L263 TraceCheckSpWp]: Trace formula consists of 490 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-18 01:47:06,089 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 01:47:06,206 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 217 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 01:47:06,206 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 01:47:06,525 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 217 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 01:47:06,525 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [878302230] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 01:47:06,525 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 01:47:06,526 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 34 [2022-11-18 01:47:06,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [799651231] [2022-11-18 01:47:06,526 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 01:47:06,527 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-11-18 01:47:06,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:47:06,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-11-18 01:47:06,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2022-11-18 01:47:06,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:47:06,528 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:47:06,528 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 7.9411764705882355) internal successors, (270), 34 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:47:06,528 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:47:06,528 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:47:06,529 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:47:06,529 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:47:06,529 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:47:06,529 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-11-18 01:47:06,529 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:47:08,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:47:08,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:47:08,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:47:08,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:47:08,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:47:08,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-18 01:47:08,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-11-18 01:47:08,897 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (108)] Forceful destruction successful, exit code 0 [2022-11-18 01:47:09,088 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 108 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable205 [2022-11-18 01:47:09,089 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)] === [2022-11-18 01:47:09,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:47:09,089 INFO L85 PathProgramCache]: Analyzing trace with hash 291944255, now seen corresponding path program 1 times [2022-11-18 01:47:09,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:47:09,089 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [982585265] [2022-11-18 01:47:09,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:47:09,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:47:09,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:47:09,995 INFO L134 CoverageAnalysis]: Checked inductivity of 1073 backedges. 0 proven. 1065 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 01:47:09,996 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:47:09,996 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [982585265] [2022-11-18 01:47:09,996 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [982585265] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 01:47:09,996 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [239807348] [2022-11-18 01:47:09,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:47:09,996 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:47:09,996 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 [2022-11-18 01:47:09,997 INFO L229 MonitoredProcess]: Starting monitored process 109 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 01:47:10,000 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (109)] Waiting until timeout for monitored process [2022-11-18 01:47:11,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:47:11,138 INFO L263 TraceCheckSpWp]: Trace formula consists of 698 conjuncts, 32 conjunts are in the unsatisfiable core [2022-11-18 01:47:11,330 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 01:47:11,569 INFO L134 CoverageAnalysis]: Checked inductivity of 1073 backedges. 0 proven. 1065 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 01:47:11,569 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 01:47:12,666 INFO L134 CoverageAnalysis]: Checked inductivity of 1073 backedges. 0 proven. 1065 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 01:47:12,666 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [239807348] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 01:47:12,667 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 01:47:12,667 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33, 33] total 66 [2022-11-18 01:47:12,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1972522963] [2022-11-18 01:47:12,667 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 01:47:12,668 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 66 states [2022-11-18 01:47:12,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:47:12,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2022-11-18 01:47:12,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1122, Invalid=3168, Unknown=0, NotChecked=0, Total=4290 [2022-11-18 01:47:12,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:47:12,671 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:47:12,672 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 66 states, 66 states have (on average 6.515151515151516) internal successors, (430), 66 states have internal predecessors, (430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:47:12,672 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:47:12,672 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:47:12,672 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:47:12,672 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:47:12,673 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:47:12,673 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-11-18 01:47:12,673 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2022-11-18 01:47:12,673 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:47:17,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:47:17,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:47:17,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:47:17,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:47:17,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:47:17,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-18 01:47:17,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-11-18 01:47:17,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 81 states. [2022-11-18 01:47:17,084 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (109)] Forceful destruction successful, exit code 0 [2022-11-18 01:47:17,276 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 109 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable206 [2022-11-18 01:47:17,276 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)] === [2022-11-18 01:47:17,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:47:17,276 INFO L85 PathProgramCache]: Analyzing trace with hash 260457716, now seen corresponding path program 1 times [2022-11-18 01:47:17,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:47:17,276 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1805195213] [2022-11-18 01:47:17,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:47:17,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:47:17,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 01:47:17,323 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 01:47:17,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 01:47:17,391 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 01:47:17,391 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-18 01:47:17,391 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 7 remaining) [2022-11-18 01:47:17,392 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 7 remaining) [2022-11-18 01:47:17,392 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 7 remaining) [2022-11-18 01:47:17,392 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 7 remaining) [2022-11-18 01:47:17,392 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 7 remaining) [2022-11-18 01:47:17,392 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (1 of 7 remaining) [2022-11-18 01:47:17,392 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK (0 of 7 remaining) [2022-11-18 01:47:17,392 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable207 [2022-11-18 01:47:17,395 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 01:47:17,396 WARN L233 ceAbstractionStarter]: 26 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-18 01:47:17,396 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 27 thread instances. [2022-11-18 01:47:17,474 INFO L144 ThreadInstanceAdder]: Constructed 27 joinOtherThreadTransitions. [2022-11-18 01:47:17,480 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 01:47:17,480 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-11-18 01:47:17,480 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 [2022-11-18 01:47:17,484 INFO L229 MonitoredProcess]: Starting monitored process 110 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-11-18 01:47:17,493 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-11-18 01:47:17,493 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2022-11-18 01:47:17,494 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;@38e98ff3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 01:47:17,494 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-11-18 01:47:17,503 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (110)] Waiting until timeout for monitored process [2022-11-18 01:47:17,516 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)] === [2022-11-18 01:47:17,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:47:17,516 INFO L85 PathProgramCache]: Analyzing trace with hash -608013790, now seen corresponding path program 1 times [2022-11-18 01:47:17,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:47:17,516 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1361021545] [2022-11-18 01:47:17,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:47:17,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:47:17,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:47:17,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:47:17,538 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:47:17,538 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1361021545] [2022-11-18 01:47:17,538 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1361021545] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 01:47:17,538 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 01:47:17,538 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 01:47:17,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1268042045] [2022-11-18 01:47:17,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 01:47:17,538 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-18 01:47:17,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:47:17,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-18 01:47:17,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-18 01:47:17,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:47:17,540 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:47:17,540 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 27.5) internal successors, (55), 2 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:47:17,540 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:47:17,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:47:17,541 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable208 [2022-11-18 01:47:17,541 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)] === [2022-11-18 01:47:17,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:47:17,542 INFO L85 PathProgramCache]: Analyzing trace with hash 899538019, now seen corresponding path program 1 times [2022-11-18 01:47:17,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:47:17,542 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [297921145] [2022-11-18 01:47:17,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:47:17,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:47:17,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:47:17,572 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:47:17,573 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:47:17,573 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [297921145] [2022-11-18 01:47:17,573 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [297921145] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 01:47:17,573 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 01:47:17,573 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 01:47:17,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1883328176] [2022-11-18 01:47:17,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 01:47:17,574 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 01:47:17,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:47:17,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 01:47:17,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 01:47:17,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:47:17,574 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:47:17,575 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:47:17,575 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:47:17,575 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:47:18,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:47:18,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:47:18,039 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable209 [2022-11-18 01:47:18,039 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)] === [2022-11-18 01:47:18,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:47:18,039 INFO L85 PathProgramCache]: Analyzing trace with hash 2062203304, now seen corresponding path program 1 times [2022-11-18 01:47:18,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:47:18,039 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [488304078] [2022-11-18 01:47:18,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:47:18,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:47:18,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:47:18,100 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:47:18,101 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:47:18,101 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [488304078] [2022-11-18 01:47:18,101 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [488304078] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 01:47:18,101 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [972612804] [2022-11-18 01:47:18,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:47:18,102 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:47:18,102 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 [2022-11-18 01:47:18,106 INFO L229 MonitoredProcess]: Starting monitored process 111 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 01:47:18,119 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (111)] Waiting until timeout for monitored process [2022-11-18 01:47:19,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:47:19,118 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 01:47:19,119 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 01:47:19,143 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:47:19,144 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 01:47:19,177 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:47:19,177 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [972612804] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 01:47:19,177 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 01:47:19,177 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-11-18 01:47:19,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [179132927] [2022-11-18 01:47:19,177 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 01:47:19,178 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-18 01:47:19,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:47:19,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-18 01:47:19,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-18 01:47:19,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:47:19,179 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:47:19,179 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.7) internal successors, (87), 10 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:47:19,179 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:47:19,179 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:47:19,179 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:47:19,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:47:19,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:47:19,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:47:19,475 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (111)] Forceful destruction successful, exit code 0 [2022-11-18 01:47:19,667 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 111 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable210 [2022-11-18 01:47:19,667 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)] === [2022-11-18 01:47:19,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:47:19,668 INFO L85 PathProgramCache]: Analyzing trace with hash 1740423349, now seen corresponding path program 1 times [2022-11-18 01:47:19,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:47:19,668 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2056816159] [2022-11-18 01:47:19,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:47:19,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:47:19,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:47:19,736 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-18 01:47:19,736 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:47:19,737 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2056816159] [2022-11-18 01:47:19,737 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2056816159] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 01:47:19,737 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 01:47:19,737 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 01:47:19,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [333991165] [2022-11-18 01:47:19,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 01:47:19,737 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 01:47:19,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:47:19,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 01:47:19,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 01:47:19,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:47:19,738 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:47:19,738 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:47:19,738 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:47:19,738 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:47:19,739 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:47:19,739 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:47:19,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:47:19,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:47:19,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:47:19,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 01:47:19,975 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable211 [2022-11-18 01:47:19,976 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)] === [2022-11-18 01:47:19,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:47:19,976 INFO L85 PathProgramCache]: Analyzing trace with hash -14902594, now seen corresponding path program 1 times [2022-11-18 01:47:19,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:47:19,976 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [12723121] [2022-11-18 01:47:19,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:47:19,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:47:19,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:47:20,016 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-18 01:47:20,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:47:20,016 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [12723121] [2022-11-18 01:47:20,016 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [12723121] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 01:47:20,017 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 01:47:20,017 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 01:47:20,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103557867] [2022-11-18 01:47:20,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 01:47:20,017 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 01:47:20,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:47:20,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 01:47:20,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 01:47:20,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:47:20,018 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:47:20,018 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:47:20,018 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:47:20,018 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:47:20,018 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:47:20,019 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-11-18 01:47:20,019 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:47:20,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:47:20,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:47:20,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:47:20,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:47:20,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:47:20,544 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable212 [2022-11-18 01:47:20,544 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)] === [2022-11-18 01:47:20,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:47:20,544 INFO L85 PathProgramCache]: Analyzing trace with hash -1796867745, now seen corresponding path program 1 times [2022-11-18 01:47:20,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:47:20,545 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [705707381] [2022-11-18 01:47:20,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:47:20,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:47:20,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:47:20,640 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-18 01:47:20,640 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:47:20,641 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [705707381] [2022-11-18 01:47:20,641 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [705707381] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 01:47:20,641 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [432862178] [2022-11-18 01:47:20,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:47:20,641 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:47:20,642 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 [2022-11-18 01:47:20,643 INFO L229 MonitoredProcess]: Starting monitored process 112 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 01:47:20,663 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (112)] Waiting until timeout for monitored process [2022-11-18 01:47:21,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:47:21,750 INFO L263 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-18 01:47:21,751 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 01:47:21,827 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 01:47:21,827 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 01:47:21,939 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 01:47:21,939 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [432862178] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 01:47:21,939 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 01:47:21,939 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 9, 9] total 19 [2022-11-18 01:47:21,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1556197810] [2022-11-18 01:47:21,939 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 01:47:21,940 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-18 01:47:21,940 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:47:21,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-18 01:47:21,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=263, Unknown=0, NotChecked=0, Total=342 [2022-11-18 01:47:21,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:47:21,941 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:47:21,941 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 11.631578947368421) internal successors, (221), 19 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:47:21,941 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:47:21,941 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:47:21,941 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:47:21,941 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:47:21,941 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:47:21,941 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:47:22,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:47:22,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:47:22,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:47:22,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:47:22,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:47:22,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-18 01:47:22,838 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (112)] Ended with exit code 0 [2022-11-18 01:47:23,030 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 112 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable213 [2022-11-18 01:47:23,031 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)] === [2022-11-18 01:47:23,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:47:23,031 INFO L85 PathProgramCache]: Analyzing trace with hash 1472080535, now seen corresponding path program 1 times [2022-11-18 01:47:23,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:47:23,031 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1985219479] [2022-11-18 01:47:23,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:47:23,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:47:23,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:47:23,325 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 217 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 01:47:23,325 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:47:23,325 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1985219479] [2022-11-18 01:47:23,325 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1985219479] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 01:47:23,325 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1909097721] [2022-11-18 01:47:23,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:47:23,326 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:47:23,326 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 [2022-11-18 01:47:23,327 INFO L229 MonitoredProcess]: Starting monitored process 113 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 01:47:23,329 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (113)] Waiting until timeout for monitored process [2022-11-18 01:47:24,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:47:24,376 INFO L263 TraceCheckSpWp]: Trace formula consists of 490 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-18 01:47:24,377 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 01:47:24,490 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 217 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 01:47:24,490 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 01:47:24,819 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 217 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 01:47:24,819 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1909097721] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 01:47:24,819 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 01:47:24,819 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 34 [2022-11-18 01:47:24,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1896427177] [2022-11-18 01:47:24,820 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 01:47:24,820 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-11-18 01:47:24,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:47:24,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-11-18 01:47:24,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2022-11-18 01:47:24,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:47:24,821 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:47:24,822 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 7.9411764705882355) internal successors, (270), 34 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:47:24,822 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:47:24,822 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:47:24,822 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:47:24,822 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:47:24,822 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:47:24,822 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-11-18 01:47:24,822 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:47:26,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:47:26,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:47:26,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:47:26,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:47:26,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:47:26,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-18 01:47:26,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-11-18 01:47:26,957 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (113)] Ended with exit code 0 [2022-11-18 01:47:27,149 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable214,113 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:47:27,149 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)] === [2022-11-18 01:47:27,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:47:27,150 INFO L85 PathProgramCache]: Analyzing trace with hash 1855597819, now seen corresponding path program 1 times [2022-11-18 01:47:27,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:47:27,150 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1189082763] [2022-11-18 01:47:27,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:47:27,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:47:27,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:47:27,949 INFO L134 CoverageAnalysis]: Checked inductivity of 1073 backedges. 0 proven. 1065 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 01:47:27,950 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:47:27,950 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1189082763] [2022-11-18 01:47:27,950 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1189082763] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 01:47:27,950 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1043240793] [2022-11-18 01:47:27,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:47:27,950 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:47:27,950 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 [2022-11-18 01:47:27,951 INFO L229 MonitoredProcess]: Starting monitored process 114 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 01:47:28,114 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (114)] Waiting until timeout for monitored process [2022-11-18 01:47:29,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:47:29,184 INFO L263 TraceCheckSpWp]: Trace formula consists of 698 conjuncts, 32 conjunts are in the unsatisfiable core [2022-11-18 01:47:29,186 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 01:47:29,390 INFO L134 CoverageAnalysis]: Checked inductivity of 1073 backedges. 0 proven. 1065 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 01:47:29,390 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 01:47:30,414 INFO L134 CoverageAnalysis]: Checked inductivity of 1073 backedges. 0 proven. 1065 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 01:47:30,414 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1043240793] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 01:47:30,414 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 01:47:30,415 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33, 33] total 66 [2022-11-18 01:47:30,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [660178644] [2022-11-18 01:47:30,415 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 01:47:30,416 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 66 states [2022-11-18 01:47:30,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:47:30,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2022-11-18 01:47:30,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1122, Invalid=3168, Unknown=0, NotChecked=0, Total=4290 [2022-11-18 01:47:30,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:47:30,417 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:47:30,418 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 66 states, 66 states have (on average 6.515151515151516) internal successors, (430), 66 states have internal predecessors, (430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:47:30,418 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:47:30,418 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:47:30,418 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:47:30,418 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:47:30,418 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:47:30,418 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-11-18 01:47:30,418 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2022-11-18 01:47:30,418 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:47:34,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:47:34,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:47:34,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:47:34,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:47:34,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:47:34,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-18 01:47:34,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-11-18 01:47:34,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 84 states. [2022-11-18 01:47:34,850 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (114)] Ended with exit code 0 [2022-11-18 01:47:35,040 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable215,114 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:47:35,040 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)] === [2022-11-18 01:47:35,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:47:35,040 INFO L85 PathProgramCache]: Analyzing trace with hash 434246815, now seen corresponding path program 1 times [2022-11-18 01:47:35,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:47:35,040 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [505898693] [2022-11-18 01:47:35,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:47:35,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:47:35,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 01:47:35,093 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 01:47:35,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 01:47:35,179 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 01:47:35,179 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-18 01:47:35,179 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 7 remaining) [2022-11-18 01:47:35,179 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 7 remaining) [2022-11-18 01:47:35,180 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 7 remaining) [2022-11-18 01:47:35,180 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 7 remaining) [2022-11-18 01:47:35,180 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 7 remaining) [2022-11-18 01:47:35,180 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (1 of 7 remaining) [2022-11-18 01:47:35,180 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK (0 of 7 remaining) [2022-11-18 01:47:35,180 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable216 [2022-11-18 01:47:35,183 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 01:47:35,184 WARN L233 ceAbstractionStarter]: 27 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-18 01:47:35,184 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 28 thread instances. [2022-11-18 01:47:35,276 INFO L144 ThreadInstanceAdder]: Constructed 28 joinOtherThreadTransitions. [2022-11-18 01:47:35,283 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 01:47:35,283 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-11-18 01:47:35,284 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 [2022-11-18 01:47:35,285 INFO L229 MonitoredProcess]: Starting monitored process 115 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-11-18 01:47:35,297 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-11-18 01:47:35,297 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2022-11-18 01:47:35,298 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;@38e98ff3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 01:47:35,298 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-11-18 01:47:35,299 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (115)] Waiting until timeout for monitored process [2022-11-18 01:47:35,321 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)] === [2022-11-18 01:47:35,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:47:35,322 INFO L85 PathProgramCache]: Analyzing trace with hash -149145414, now seen corresponding path program 1 times [2022-11-18 01:47:35,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:47:35,322 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [689973681] [2022-11-18 01:47:35,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:47:35,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:47:35,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:47:35,347 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:47:35,347 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:47:35,347 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [689973681] [2022-11-18 01:47:35,347 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [689973681] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 01:47:35,348 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 01:47:35,348 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 01:47:35,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840923091] [2022-11-18 01:47:35,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 01:47:35,348 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-18 01:47:35,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:47:35,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-18 01:47:35,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-18 01:47:35,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:47:35,349 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:47:35,349 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 27.5) internal successors, (55), 2 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:47:35,349 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:47:35,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:47:35,350 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable217 [2022-11-18 01:47:35,351 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)] === [2022-11-18 01:47:35,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:47:35,351 INFO L85 PathProgramCache]: Analyzing trace with hash 1358406395, now seen corresponding path program 1 times [2022-11-18 01:47:35,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:47:35,351 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [372462046] [2022-11-18 01:47:35,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:47:35,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:47:35,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:47:35,386 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:47:35,386 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:47:35,386 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [372462046] [2022-11-18 01:47:35,387 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [372462046] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 01:47:35,387 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 01:47:35,387 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 01:47:35,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1762622594] [2022-11-18 01:47:35,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 01:47:35,388 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 01:47:35,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:47:35,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 01:47:35,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 01:47:35,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:47:35,389 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:47:35,389 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:47:35,390 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:47:35,390 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:47:35,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:47:35,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:47:35,821 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable218 [2022-11-18 01:47:35,821 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)] === [2022-11-18 01:47:35,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:47:35,821 INFO L85 PathProgramCache]: Analyzing trace with hash -1991820452, now seen corresponding path program 1 times [2022-11-18 01:47:35,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:47:35,821 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1778426108] [2022-11-18 01:47:35,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:47:35,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:47:35,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:47:35,873 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:47:35,873 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:47:35,873 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1778426108] [2022-11-18 01:47:35,873 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1778426108] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 01:47:35,873 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [346674680] [2022-11-18 01:47:35,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:47:35,874 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:47:35,874 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 [2022-11-18 01:47:35,877 INFO L229 MonitoredProcess]: Starting monitored process 116 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 01:47:35,881 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (116)] Waiting until timeout for monitored process [2022-11-18 01:47:36,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:47:36,908 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 01:47:36,909 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 01:47:36,935 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:47:36,935 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 01:47:36,969 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:47:36,969 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [346674680] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 01:47:36,970 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 01:47:36,970 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-11-18 01:47:36,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [694250435] [2022-11-18 01:47:36,970 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 01:47:36,970 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-18 01:47:36,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:47:36,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-18 01:47:36,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-18 01:47:36,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:47:36,971 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:47:36,971 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.7) internal successors, (87), 10 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:47:36,971 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:47:36,972 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:47:36,972 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:47:37,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:47:37,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:47:37,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:47:37,272 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (116)] Forceful destruction successful, exit code 0 [2022-11-18 01:47:37,465 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable219,116 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:47:37,465 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)] === [2022-11-18 01:47:37,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:47:37,465 INFO L85 PathProgramCache]: Analyzing trace with hash -532422751, now seen corresponding path program 1 times [2022-11-18 01:47:37,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:47:37,465 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [598027129] [2022-11-18 01:47:37,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:47:37,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:47:37,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:47:37,712 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-18 01:47:37,712 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:47:37,712 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [598027129] [2022-11-18 01:47:37,712 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [598027129] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 01:47:37,712 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 01:47:37,712 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 01:47:37,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887119197] [2022-11-18 01:47:37,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 01:47:37,713 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 01:47:37,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:47:37,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 01:47:37,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 01:47:37,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:47:37,714 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:47:37,714 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:47:37,714 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:47:37,714 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:47:37,714 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:47:37,714 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:47:37,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:47:37,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:47:37,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:47:37,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 01:47:37,978 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable220 [2022-11-18 01:47:37,978 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)] === [2022-11-18 01:47:37,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:47:37,978 INFO L85 PathProgramCache]: Analyzing trace with hash 830855402, now seen corresponding path program 1 times [2022-11-18 01:47:37,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:47:37,978 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1876115488] [2022-11-18 01:47:37,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:47:37,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:47:38,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:47:38,022 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-18 01:47:38,023 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:47:38,023 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1876115488] [2022-11-18 01:47:38,023 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1876115488] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 01:47:38,023 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 01:47:38,023 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 01:47:38,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2089136214] [2022-11-18 01:47:38,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 01:47:38,024 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 01:47:38,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:47:38,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 01:47:38,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 01:47:38,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:47:38,025 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:47:38,025 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:47:38,025 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:47:38,025 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:47:38,025 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:47:38,025 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-11-18 01:47:38,025 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:47:38,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:47:38,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:47:38,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:47:38,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:47:38,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:47:38,471 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable221 [2022-11-18 01:47:38,472 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)] === [2022-11-18 01:47:38,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:47:38,472 INFO L85 PathProgramCache]: Analyzing trace with hash -2100865202, now seen corresponding path program 1 times [2022-11-18 01:47:38,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:47:38,472 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [810471275] [2022-11-18 01:47:38,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:47:38,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:47:38,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:47:38,547 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-18 01:47:38,547 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:47:38,548 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [810471275] [2022-11-18 01:47:38,548 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [810471275] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 01:47:38,548 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1818912965] [2022-11-18 01:47:38,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:47:38,548 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:47:38,548 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 [2022-11-18 01:47:38,549 INFO L229 MonitoredProcess]: Starting monitored process 117 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 01:47:38,551 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (117)] Waiting until timeout for monitored process [2022-11-18 01:47:39,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:47:39,621 INFO L263 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-18 01:47:39,622 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 01:47:39,707 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 01:47:39,707 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 01:47:39,852 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 01:47:39,852 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1818912965] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 01:47:39,852 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 01:47:39,853 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 9, 9] total 19 [2022-11-18 01:47:39,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [988456110] [2022-11-18 01:47:39,853 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 01:47:39,853 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-18 01:47:39,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:47:39,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-18 01:47:39,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=263, Unknown=0, NotChecked=0, Total=342 [2022-11-18 01:47:39,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:47:39,855 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:47:39,855 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 11.631578947368421) internal successors, (221), 19 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:47:39,855 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:47:39,855 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:47:39,855 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:47:39,856 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:47:39,856 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:47:39,856 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:47:40,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:47:40,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:47:40,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:47:40,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:47:40,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:47:40,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-18 01:47:40,788 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (117)] Ended with exit code 0 [2022-11-18 01:47:40,979 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 117 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable222 [2022-11-18 01:47:40,979 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)] === [2022-11-18 01:47:40,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:47:40,979 INFO L85 PathProgramCache]: Analyzing trace with hash 465403443, now seen corresponding path program 1 times [2022-11-18 01:47:40,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:47:40,980 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1590075908] [2022-11-18 01:47:40,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:47:40,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:47:41,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:47:41,270 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 217 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 01:47:41,271 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:47:41,271 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1590075908] [2022-11-18 01:47:41,271 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1590075908] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 01:47:41,271 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [778070829] [2022-11-18 01:47:41,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:47:41,272 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:47:41,272 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 [2022-11-18 01:47:41,273 INFO L229 MonitoredProcess]: Starting monitored process 118 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 01:47:41,280 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (118)] Waiting until timeout for monitored process [2022-11-18 01:47:42,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:47:42,416 INFO L263 TraceCheckSpWp]: Trace formula consists of 490 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-18 01:47:42,418 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 01:47:42,527 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 217 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 01:47:42,527 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 01:47:42,851 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 217 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 01:47:42,852 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [778070829] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 01:47:42,852 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 01:47:42,852 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 34 [2022-11-18 01:47:42,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1356794071] [2022-11-18 01:47:42,852 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 01:47:42,852 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-11-18 01:47:42,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:47:42,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-11-18 01:47:42,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2022-11-18 01:47:42,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:47:42,854 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:47:42,854 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 7.9411764705882355) internal successors, (270), 34 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:47:42,854 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:47:42,854 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:47:42,854 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:47:42,854 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:47:42,854 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:47:42,854 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-11-18 01:47:42,854 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:47:44,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:47:44,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:47:44,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:47:44,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:47:44,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:47:44,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-18 01:47:44,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-11-18 01:47:44,868 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (118)] Forceful destruction successful, exit code 0 [2022-11-18 01:47:45,067 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 118 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable223 [2022-11-18 01:47:45,067 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)] === [2022-11-18 01:47:45,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:47:45,068 INFO L85 PathProgramCache]: Analyzing trace with hash -1717334985, now seen corresponding path program 1 times [2022-11-18 01:47:45,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:47:45,068 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411218987] [2022-11-18 01:47:45,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:47:45,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:47:45,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:47:46,086 INFO L134 CoverageAnalysis]: Checked inductivity of 1073 backedges. 0 proven. 1065 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 01:47:46,086 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:47:46,086 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1411218987] [2022-11-18 01:47:46,086 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1411218987] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 01:47:46,087 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1679317181] [2022-11-18 01:47:46,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:47:46,087 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:47:46,087 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 [2022-11-18 01:47:46,088 INFO L229 MonitoredProcess]: Starting monitored process 119 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 01:47:46,090 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (119)] Waiting until timeout for monitored process [2022-11-18 01:47:47,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:47:47,317 INFO L263 TraceCheckSpWp]: Trace formula consists of 698 conjuncts, 32 conjunts are in the unsatisfiable core [2022-11-18 01:47:47,319 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 01:47:47,549 INFO L134 CoverageAnalysis]: Checked inductivity of 1073 backedges. 0 proven. 1065 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 01:47:47,550 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 01:47:48,651 INFO L134 CoverageAnalysis]: Checked inductivity of 1073 backedges. 0 proven. 1065 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 01:47:48,651 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1679317181] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 01:47:48,651 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 01:47:48,652 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33, 33] total 66 [2022-11-18 01:47:48,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023215016] [2022-11-18 01:47:48,652 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 01:47:48,652 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 66 states [2022-11-18 01:47:48,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:47:48,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2022-11-18 01:47:48,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1122, Invalid=3168, Unknown=0, NotChecked=0, Total=4290 [2022-11-18 01:47:48,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:47:48,654 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:47:48,655 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 66 states, 66 states have (on average 6.515151515151516) internal successors, (430), 66 states have internal predecessors, (430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:47:48,655 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:47:48,655 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:47:48,655 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:47:48,655 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:47:48,655 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:47:48,655 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-11-18 01:47:48,655 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2022-11-18 01:47:48,655 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:47:53,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:47:53,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:47:53,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:47:53,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:47:53,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:47:53,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-18 01:47:53,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-11-18 01:47:53,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 87 states. [2022-11-18 01:47:53,455 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (119)] Forceful destruction successful, exit code 0 [2022-11-18 01:47:53,646 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 119 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable224 [2022-11-18 01:47:53,646 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)] === [2022-11-18 01:47:53,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:47:53,647 INFO L85 PathProgramCache]: Analyzing trace with hash 803256771, now seen corresponding path program 1 times [2022-11-18 01:47:53,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:47:53,647 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [870221902] [2022-11-18 01:47:53,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:47:53,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:47:53,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 01:47:53,707 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 01:47:53,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 01:47:53,791 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 01:47:53,791 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-18 01:47:53,791 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 7 remaining) [2022-11-18 01:47:53,791 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 7 remaining) [2022-11-18 01:47:53,791 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 7 remaining) [2022-11-18 01:47:53,792 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 7 remaining) [2022-11-18 01:47:53,792 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 7 remaining) [2022-11-18 01:47:53,792 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (1 of 7 remaining) [2022-11-18 01:47:53,792 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK (0 of 7 remaining) [2022-11-18 01:47:53,792 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable225 [2022-11-18 01:47:53,794 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 01:47:53,795 WARN L233 ceAbstractionStarter]: 28 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-18 01:47:53,795 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 29 thread instances. [2022-11-18 01:47:53,876 INFO L144 ThreadInstanceAdder]: Constructed 29 joinOtherThreadTransitions. [2022-11-18 01:47:53,881 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 01:47:53,881 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-11-18 01:47:53,881 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 [2022-11-18 01:47:53,882 INFO L229 MonitoredProcess]: Starting monitored process 120 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-11-18 01:47:53,884 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (120)] Waiting until timeout for monitored process [2022-11-18 01:47:53,886 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-11-18 01:47:53,887 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2022-11-18 01:47:53,887 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;@38e98ff3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 01:47:53,887 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-11-18 01:47:53,912 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)] === [2022-11-18 01:47:53,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:47:53,912 INFO L85 PathProgramCache]: Analyzing trace with hash 925771666, now seen corresponding path program 1 times [2022-11-18 01:47:53,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:47:53,912 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1568776985] [2022-11-18 01:47:53,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:47:53,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:47:53,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:47:53,936 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:47:53,936 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:47:53,936 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1568776985] [2022-11-18 01:47:53,936 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1568776985] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 01:47:53,936 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 01:47:53,936 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 01:47:53,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [951674798] [2022-11-18 01:47:53,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 01:47:53,937 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-18 01:47:53,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:47:53,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-18 01:47:53,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-18 01:47:53,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:47:53,938 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:47:53,938 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 27.5) internal successors, (55), 2 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:47:53,938 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:47:53,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:47:53,939 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable226 [2022-11-18 01:47:53,940 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)] === [2022-11-18 01:47:53,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:47:53,940 INFO L85 PathProgramCache]: Analyzing trace with hash -1861643821, now seen corresponding path program 1 times [2022-11-18 01:47:53,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:47:53,940 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2115073782] [2022-11-18 01:47:53,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:47:53,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:47:53,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:47:53,973 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:47:53,974 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:47:53,974 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2115073782] [2022-11-18 01:47:53,974 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2115073782] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 01:47:53,974 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 01:47:53,974 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 01:47:53,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1837952289] [2022-11-18 01:47:53,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 01:47:53,975 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 01:47:53,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:47:53,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 01:47:53,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 01:47:53,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:47:53,976 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:47:53,976 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:47:53,976 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:47:53,976 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:47:54,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:47:54,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:47:54,588 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable227 [2022-11-18 01:47:54,589 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)] === [2022-11-18 01:47:54,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:47:54,591 INFO L85 PathProgramCache]: Analyzing trace with hash -240992944, now seen corresponding path program 1 times [2022-11-18 01:47:54,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:47:54,591 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1205949717] [2022-11-18 01:47:54,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:47:54,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:47:54,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:47:54,646 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:47:54,646 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:47:54,646 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1205949717] [2022-11-18 01:47:54,646 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1205949717] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 01:47:54,646 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [778085496] [2022-11-18 01:47:54,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:47:54,647 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:47:54,647 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 [2022-11-18 01:47:54,650 INFO L229 MonitoredProcess]: Starting monitored process 121 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 01:47:54,651 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (121)] Waiting until timeout for monitored process [2022-11-18 01:47:55,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:47:55,755 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 01:47:55,756 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 01:47:55,779 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:47:55,779 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 01:47:55,810 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:47:55,810 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [778085496] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 01:47:55,811 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 01:47:55,811 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-11-18 01:47:55,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122142709] [2022-11-18 01:47:55,811 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 01:47:55,811 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-18 01:47:55,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:47:55,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-18 01:47:55,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-18 01:47:55,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:47:55,812 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:47:55,812 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.7) internal successors, (87), 10 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:47:55,812 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:47:55,813 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:47:55,813 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:47:56,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:47:56,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:47:56,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:47:56,108 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (121)] Ended with exit code 0 [2022-11-18 01:47:56,301 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 121 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable228 [2022-11-18 01:47:56,301 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)] === [2022-11-18 01:47:56,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:47:56,301 INFO L85 PathProgramCache]: Analyzing trace with hash 1691201229, now seen corresponding path program 1 times [2022-11-18 01:47:56,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:47:56,301 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [678326670] [2022-11-18 01:47:56,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:47:56,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:47:56,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:47:56,370 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-18 01:47:56,371 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:47:56,371 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [678326670] [2022-11-18 01:47:56,371 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [678326670] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 01:47:56,371 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 01:47:56,371 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 01:47:56,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1832170464] [2022-11-18 01:47:56,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 01:47:56,372 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 01:47:56,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:47:56,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 01:47:56,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 01:47:56,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:47:56,373 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:47:56,373 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:47:56,373 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:47:56,373 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:47:56,373 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:47:56,373 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:47:56,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:47:56,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:47:56,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:47:56,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 01:47:56,653 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable229 [2022-11-18 01:47:56,653 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)] === [2022-11-18 01:47:56,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:47:56,653 INFO L85 PathProgramCache]: Analyzing trace with hash 807442198, now seen corresponding path program 1 times [2022-11-18 01:47:56,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:47:56,653 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1353726048] [2022-11-18 01:47:56,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:47:56,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:47:56,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:47:56,699 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-18 01:47:56,699 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:47:56,699 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1353726048] [2022-11-18 01:47:56,699 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1353726048] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 01:47:56,699 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 01:47:56,699 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 01:47:56,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675788347] [2022-11-18 01:47:56,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 01:47:56,700 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 01:47:56,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:47:56,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 01:47:56,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 01:47:56,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:47:56,701 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:47:56,701 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:47:56,701 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:47:56,701 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:47:56,701 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:47:56,701 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-11-18 01:47:56,702 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:47:57,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:47:57,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:47:57,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:47:57,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:47:57,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:47:57,144 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable230 [2022-11-18 01:47:57,144 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)] === [2022-11-18 01:47:57,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:47:57,144 INFO L85 PathProgramCache]: Analyzing trace with hash 1131457021, now seen corresponding path program 1 times [2022-11-18 01:47:57,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:47:57,145 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [533186253] [2022-11-18 01:47:57,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:47:57,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:47:57,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:47:57,219 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-18 01:47:57,219 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:47:57,219 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [533186253] [2022-11-18 01:47:57,219 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [533186253] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 01:47:57,219 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [388240446] [2022-11-18 01:47:57,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:47:57,219 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:47:57,220 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 [2022-11-18 01:47:57,221 INFO L229 MonitoredProcess]: Starting monitored process 122 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 01:47:57,223 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (122)] Waiting until timeout for monitored process [2022-11-18 01:47:58,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:47:58,314 INFO L263 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-18 01:47:58,315 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 01:47:58,397 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 01:47:58,397 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 01:47:58,509 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 01:47:58,509 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [388240446] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 01:47:58,509 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 01:47:58,509 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 9, 9] total 19 [2022-11-18 01:47:58,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903543699] [2022-11-18 01:47:58,509 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 01:47:58,510 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-18 01:47:58,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:47:58,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-18 01:47:58,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=263, Unknown=0, NotChecked=0, Total=342 [2022-11-18 01:47:58,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:47:58,511 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:47:58,511 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 11.631578947368421) internal successors, (221), 19 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:47:58,511 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:47:58,511 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:47:58,511 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:47:58,511 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:47:58,511 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:47:58,511 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:47:59,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:47:59,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:47:59,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:47:59,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:47:59,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:47:59,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-18 01:47:59,533 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (122)] Ended with exit code 0 [2022-11-18 01:47:59,724 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable231,122 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:47:59,725 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)] === [2022-11-18 01:47:59,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:47:59,725 INFO L85 PathProgramCache]: Analyzing trace with hash -1153887409, now seen corresponding path program 1 times [2022-11-18 01:47:59,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:47:59,725 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1160813102] [2022-11-18 01:47:59,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:47:59,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:47:59,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:48:00,109 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 217 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 01:48:00,110 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:48:00,110 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1160813102] [2022-11-18 01:48:00,110 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1160813102] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 01:48:00,110 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1800148625] [2022-11-18 01:48:00,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:48:00,110 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:48:00,110 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 [2022-11-18 01:48:00,112 INFO L229 MonitoredProcess]: Starting monitored process 123 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 01:48:00,132 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (123)] Waiting until timeout for monitored process [2022-11-18 01:48:01,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:48:01,341 INFO L263 TraceCheckSpWp]: Trace formula consists of 490 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-18 01:48:01,343 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 01:48:01,455 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 217 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 01:48:01,456 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 01:48:01,779 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 217 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 01:48:01,780 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1800148625] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 01:48:01,780 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 01:48:01,780 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 34 [2022-11-18 01:48:01,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002690093] [2022-11-18 01:48:01,780 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 01:48:01,780 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-11-18 01:48:01,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:48:01,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-11-18 01:48:01,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2022-11-18 01:48:01,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:48:01,782 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:48:01,782 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 7.9411764705882355) internal successors, (270), 34 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:48:01,782 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:48:01,782 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:48:01,782 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:48:01,782 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:48:01,782 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:48:01,782 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-11-18 01:48:01,782 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:48:04,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:48:04,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:48:04,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:48:04,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:48:04,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:48:04,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-18 01:48:04,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-11-18 01:48:04,582 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (123)] Ended with exit code 0 [2022-11-18 01:48:04,774 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable232,123 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:48:04,774 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)] === [2022-11-18 01:48:04,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:48:04,774 INFO L85 PathProgramCache]: Analyzing trace with hash 1621759219, now seen corresponding path program 1 times [2022-11-18 01:48:04,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:48:04,774 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [787022357] [2022-11-18 01:48:04,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:48:04,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:48:04,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:48:05,706 INFO L134 CoverageAnalysis]: Checked inductivity of 1073 backedges. 0 proven. 1065 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 01:48:05,706 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:48:05,707 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [787022357] [2022-11-18 01:48:05,707 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [787022357] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 01:48:05,707 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [175173503] [2022-11-18 01:48:05,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:48:05,707 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:48:05,708 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 [2022-11-18 01:48:05,712 INFO L229 MonitoredProcess]: Starting monitored process 124 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 01:48:05,735 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (124)] Waiting until timeout for monitored process [2022-11-18 01:48:06,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:48:06,941 INFO L263 TraceCheckSpWp]: Trace formula consists of 698 conjuncts, 32 conjunts are in the unsatisfiable core [2022-11-18 01:48:06,945 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 01:48:07,156 INFO L134 CoverageAnalysis]: Checked inductivity of 1073 backedges. 0 proven. 1065 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 01:48:07,156 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 01:48:08,202 INFO L134 CoverageAnalysis]: Checked inductivity of 1073 backedges. 0 proven. 1065 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 01:48:08,202 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [175173503] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 01:48:08,202 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 01:48:08,203 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33, 33] total 66 [2022-11-18 01:48:08,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [945670772] [2022-11-18 01:48:08,203 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 01:48:08,203 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 66 states [2022-11-18 01:48:08,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:48:08,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2022-11-18 01:48:08,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1122, Invalid=3168, Unknown=0, NotChecked=0, Total=4290 [2022-11-18 01:48:08,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:48:08,205 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:48:08,205 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 66 states, 66 states have (on average 6.515151515151516) internal successors, (430), 66 states have internal predecessors, (430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:48:08,206 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:48:08,206 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:48:08,206 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:48:08,206 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:48:08,206 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:48:08,206 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-11-18 01:48:08,206 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2022-11-18 01:48:08,206 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:48:14,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:48:14,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:48:14,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:48:14,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:48:14,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:48:14,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-18 01:48:14,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-11-18 01:48:14,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 90 states. [2022-11-18 01:48:14,681 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (124)] Ended with exit code 0 [2022-11-18 01:48:14,872 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 124 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable233 [2022-11-18 01:48:14,872 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)] === [2022-11-18 01:48:14,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:48:14,873 INFO L85 PathProgramCache]: Analyzing trace with hash 575641120, now seen corresponding path program 1 times [2022-11-18 01:48:14,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:48:14,873 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2028754811] [2022-11-18 01:48:14,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:48:14,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:48:14,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 01:48:14,928 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 01:48:14,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 01:48:15,048 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 01:48:15,048 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-18 01:48:15,048 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 7 remaining) [2022-11-18 01:48:15,048 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 7 remaining) [2022-11-18 01:48:15,049 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 7 remaining) [2022-11-18 01:48:15,049 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 7 remaining) [2022-11-18 01:48:15,049 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 7 remaining) [2022-11-18 01:48:15,049 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (1 of 7 remaining) [2022-11-18 01:48:15,049 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK (0 of 7 remaining) [2022-11-18 01:48:15,050 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable234 [2022-11-18 01:48:15,055 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 01:48:15,056 WARN L233 ceAbstractionStarter]: 29 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-18 01:48:15,056 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 30 thread instances. [2022-11-18 01:48:15,135 INFO L144 ThreadInstanceAdder]: Constructed 30 joinOtherThreadTransitions. [2022-11-18 01:48:15,141 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 01:48:15,142 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-11-18 01:48:15,142 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 [2022-11-18 01:48:15,143 INFO L229 MonitoredProcess]: Starting monitored process 125 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-11-18 01:48:15,157 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-11-18 01:48:15,157 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2022-11-18 01:48:15,157 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;@38e98ff3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 01:48:15,157 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-11-18 01:48:15,179 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (125)] Waiting until timeout for monitored process [2022-11-18 01:48:15,194 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)] === [2022-11-18 01:48:15,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:48:15,194 INFO L85 PathProgramCache]: Analyzing trace with hash -1678229846, now seen corresponding path program 1 times [2022-11-18 01:48:15,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:48:15,195 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [684423985] [2022-11-18 01:48:15,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:48:15,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:48:15,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:48:15,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:48:15,227 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:48:15,228 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [684423985] [2022-11-18 01:48:15,228 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [684423985] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 01:48:15,228 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 01:48:15,228 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 01:48:15,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1368894610] [2022-11-18 01:48:15,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 01:48:15,229 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-18 01:48:15,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:48:15,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-18 01:48:15,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-18 01:48:15,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:48:15,230 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:48:15,230 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 27.5) internal successors, (55), 2 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:48:15,230 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:48:15,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:48:15,231 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable235 [2022-11-18 01:48:15,232 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)] === [2022-11-18 01:48:15,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:48:15,232 INFO L85 PathProgramCache]: Analyzing trace with hash -170678037, now seen corresponding path program 1 times [2022-11-18 01:48:15,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:48:15,232 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1610401987] [2022-11-18 01:48:15,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:48:15,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:48:15,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:48:15,275 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:48:15,275 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:48:15,275 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1610401987] [2022-11-18 01:48:15,276 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1610401987] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 01:48:15,276 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 01:48:15,276 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 01:48:15,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1372911706] [2022-11-18 01:48:15,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 01:48:15,277 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 01:48:15,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:48:15,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 01:48:15,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 01:48:15,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:48:15,278 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:48:15,278 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:48:15,278 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:48:15,278 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:48:15,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:48:15,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:48:15,801 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable236 [2022-11-18 01:48:15,801 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)] === [2022-11-18 01:48:15,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:48:15,802 INFO L85 PathProgramCache]: Analyzing trace with hash -1275248764, now seen corresponding path program 1 times [2022-11-18 01:48:15,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:48:15,802 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1256297221] [2022-11-18 01:48:15,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:48:15,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:48:15,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:48:15,868 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:48:15,868 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:48:15,868 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1256297221] [2022-11-18 01:48:15,868 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1256297221] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 01:48:15,869 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1083574766] [2022-11-18 01:48:15,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:48:15,869 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:48:15,869 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 [2022-11-18 01:48:15,875 INFO L229 MonitoredProcess]: Starting monitored process 126 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 01:48:15,896 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (126)] Waiting until timeout for monitored process [2022-11-18 01:48:17,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:48:17,202 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 01:48:17,203 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 01:48:17,227 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:48:17,227 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 01:48:17,259 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:48:17,260 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1083574766] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 01:48:17,260 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 01:48:17,260 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-11-18 01:48:17,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [4974978] [2022-11-18 01:48:17,260 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 01:48:17,260 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-18 01:48:17,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:48:17,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-18 01:48:17,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-18 01:48:17,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:48:17,261 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:48:17,261 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.7) internal successors, (87), 10 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:48:17,262 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:48:17,262 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:48:17,262 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:48:17,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:48:17,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:48:17,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:48:17,576 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (126)] Ended with exit code 0 [2022-11-18 01:48:17,775 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable237,126 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:48:17,775 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)] === [2022-11-18 01:48:17,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:48:17,776 INFO L85 PathProgramCache]: Analyzing trace with hash -178639303, now seen corresponding path program 1 times [2022-11-18 01:48:17,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:48:17,776 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [777090156] [2022-11-18 01:48:17,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:48:17,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:48:17,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:48:17,852 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-18 01:48:17,852 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:48:17,852 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [777090156] [2022-11-18 01:48:17,853 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [777090156] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 01:48:17,853 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 01:48:17,853 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 01:48:17,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1053454143] [2022-11-18 01:48:17,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 01:48:17,854 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 01:48:17,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:48:17,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 01:48:17,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 01:48:17,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:48:17,855 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:48:17,856 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:48:17,856 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:48:17,856 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:48:17,856 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:48:17,856 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:48:18,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:48:18,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:48:18,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:48:18,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 01:48:18,176 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable238 [2022-11-18 01:48:18,176 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)] === [2022-11-18 01:48:18,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:48:18,176 INFO L85 PathProgramCache]: Analyzing trace with hash -85142206, now seen corresponding path program 1 times [2022-11-18 01:48:18,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:48:18,177 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [175206093] [2022-11-18 01:48:18,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:48:18,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:48:18,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:48:18,222 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-18 01:48:18,222 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:48:18,222 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [175206093] [2022-11-18 01:48:18,222 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [175206093] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 01:48:18,222 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 01:48:18,222 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 01:48:18,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [862219192] [2022-11-18 01:48:18,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 01:48:18,223 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 01:48:18,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:48:18,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 01:48:18,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 01:48:18,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:48:18,224 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:48:18,224 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:48:18,224 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:48:18,225 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:48:18,225 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:48:18,225 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-11-18 01:48:18,225 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:48:18,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:48:18,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:48:18,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:48:18,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:48:18,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:48:18,725 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable239 [2022-11-18 01:48:18,725 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)] === [2022-11-18 01:48:18,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:48:18,726 INFO L85 PathProgramCache]: Analyzing trace with hash -800807444, now seen corresponding path program 1 times [2022-11-18 01:48:18,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:48:18,726 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1236917310] [2022-11-18 01:48:18,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:48:18,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:48:18,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:48:18,816 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-18 01:48:18,817 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:48:18,817 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1236917310] [2022-11-18 01:48:18,817 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1236917310] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 01:48:18,817 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [859520919] [2022-11-18 01:48:18,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:48:18,817 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:48:18,817 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 [2022-11-18 01:48:18,819 INFO L229 MonitoredProcess]: Starting monitored process 127 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 01:48:18,821 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (127)] Waiting until timeout for monitored process [2022-11-18 01:48:19,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:48:19,971 INFO L263 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-18 01:48:19,973 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 01:48:20,059 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 01:48:20,060 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 01:48:20,177 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 01:48:20,177 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [859520919] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 01:48:20,177 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 01:48:20,177 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 9, 9] total 19 [2022-11-18 01:48:20,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1989691142] [2022-11-18 01:48:20,177 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 01:48:20,178 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-18 01:48:20,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:48:20,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-18 01:48:20,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=263, Unknown=0, NotChecked=0, Total=342 [2022-11-18 01:48:20,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:48:20,179 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:48:20,179 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 11.631578947368421) internal successors, (221), 19 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:48:20,179 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:48:20,179 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:48:20,179 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:48:20,179 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:48:20,180 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:48:20,180 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:48:21,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:48:21,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:48:21,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:48:21,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:48:21,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:48:21,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-18 01:48:21,165 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (127)] Ended with exit code 0 [2022-11-18 01:48:21,356 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable240,127 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:48:21,356 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)] === [2022-11-18 01:48:21,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:48:21,356 INFO L85 PathProgramCache]: Analyzing trace with hash 651179243, now seen corresponding path program 1 times [2022-11-18 01:48:21,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:48:21,356 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1640142774] [2022-11-18 01:48:21,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:48:21,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:48:21,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:48:21,840 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 217 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 01:48:21,841 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:48:21,841 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1640142774] [2022-11-18 01:48:21,841 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1640142774] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 01:48:21,841 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [350227028] [2022-11-18 01:48:21,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:48:21,841 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:48:21,841 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 [2022-11-18 01:48:21,843 INFO L229 MonitoredProcess]: Starting monitored process 128 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 01:48:21,846 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (128)] Waiting until timeout for monitored process [2022-11-18 01:48:23,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:48:23,051 INFO L263 TraceCheckSpWp]: Trace formula consists of 490 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-18 01:48:23,053 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 01:48:23,162 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 217 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 01:48:23,162 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 01:48:23,502 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 217 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 01:48:23,502 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [350227028] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 01:48:23,502 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 01:48:23,503 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 34 [2022-11-18 01:48:23,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1869826225] [2022-11-18 01:48:23,503 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 01:48:23,503 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-11-18 01:48:23,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:48:23,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-11-18 01:48:23,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2022-11-18 01:48:23,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:48:23,505 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:48:23,505 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 7.9411764705882355) internal successors, (270), 34 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:48:23,505 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:48:23,505 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:48:23,505 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:48:23,505 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:48:23,505 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:48:23,505 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-11-18 01:48:23,505 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:48:25,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:48:25,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:48:25,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:48:25,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:48:25,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:48:25,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-18 01:48:25,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-11-18 01:48:25,401 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (128)] Forceful destruction successful, exit code 0 [2022-11-18 01:48:25,599 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable241,128 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:48:25,599 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)] === [2022-11-18 01:48:25,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:48:25,600 INFO L85 PathProgramCache]: Analyzing trace with hash 2047737903, now seen corresponding path program 1 times [2022-11-18 01:48:25,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:48:25,600 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [757829254] [2022-11-18 01:48:25,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:48:25,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:48:25,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:48:26,397 INFO L134 CoverageAnalysis]: Checked inductivity of 1073 backedges. 0 proven. 1065 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 01:48:26,397 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:48:26,397 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [757829254] [2022-11-18 01:48:26,397 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [757829254] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 01:48:26,397 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [806171837] [2022-11-18 01:48:26,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:48:26,398 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:48:26,398 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 [2022-11-18 01:48:26,399 INFO L229 MonitoredProcess]: Starting monitored process 129 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 01:48:26,401 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (129)] Waiting until timeout for monitored process [2022-11-18 01:48:27,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:48:27,656 INFO L263 TraceCheckSpWp]: Trace formula consists of 698 conjuncts, 32 conjunts are in the unsatisfiable core [2022-11-18 01:48:27,658 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 01:48:27,891 INFO L134 CoverageAnalysis]: Checked inductivity of 1073 backedges. 0 proven. 1065 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 01:48:27,891 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 01:48:28,963 INFO L134 CoverageAnalysis]: Checked inductivity of 1073 backedges. 0 proven. 1065 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 01:48:28,964 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [806171837] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 01:48:28,964 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 01:48:28,964 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33, 33] total 66 [2022-11-18 01:48:28,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1771335546] [2022-11-18 01:48:28,964 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 01:48:28,965 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 66 states [2022-11-18 01:48:28,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:48:28,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2022-11-18 01:48:28,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1122, Invalid=3168, Unknown=0, NotChecked=0, Total=4290 [2022-11-18 01:48:28,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:48:28,966 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:48:28,967 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 66 states, 66 states have (on average 6.515151515151516) internal successors, (430), 66 states have internal predecessors, (430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:48:28,967 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:48:28,967 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:48:28,967 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:48:28,967 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:48:28,967 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:48:28,967 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-11-18 01:48:28,967 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2022-11-18 01:48:28,967 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:48:33,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:48:33,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:48:33,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:48:33,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:48:33,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:48:33,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-18 01:48:33,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-11-18 01:48:33,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2022-11-18 01:48:33,976 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (129)] Ended with exit code 0 [2022-11-18 01:48:34,166 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable242,129 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:48:34,166 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)] === [2022-11-18 01:48:34,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:48:34,166 INFO L85 PathProgramCache]: Analyzing trace with hash -738813066, now seen corresponding path program 1 times [2022-11-18 01:48:34,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:48:34,167 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1165319089] [2022-11-18 01:48:34,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:48:34,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:48:34,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 01:48:34,232 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 01:48:34,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 01:48:34,333 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 01:48:34,333 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-18 01:48:34,333 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 7 remaining) [2022-11-18 01:48:34,334 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 7 remaining) [2022-11-18 01:48:34,334 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 7 remaining) [2022-11-18 01:48:34,334 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 7 remaining) [2022-11-18 01:48:34,334 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 7 remaining) [2022-11-18 01:48:34,334 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (1 of 7 remaining) [2022-11-18 01:48:34,334 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK (0 of 7 remaining) [2022-11-18 01:48:34,334 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable243 [2022-11-18 01:48:34,337 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 01:48:34,338 WARN L233 ceAbstractionStarter]: 30 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-18 01:48:34,338 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 31 thread instances. [2022-11-18 01:48:34,418 INFO L144 ThreadInstanceAdder]: Constructed 31 joinOtherThreadTransitions. [2022-11-18 01:48:34,422 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 01:48:34,422 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-11-18 01:48:34,422 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 [2022-11-18 01:48:34,424 INFO L229 MonitoredProcess]: Starting monitored process 130 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-11-18 01:48:34,426 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (130)] Waiting until timeout for monitored process [2022-11-18 01:48:34,428 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-11-18 01:48:34,428 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2022-11-18 01:48:34,428 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;@38e98ff3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 01:48:34,429 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-11-18 01:48:34,452 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)] === [2022-11-18 01:48:34,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:48:34,452 INFO L85 PathProgramCache]: Analyzing trace with hash 628784642, now seen corresponding path program 1 times [2022-11-18 01:48:34,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:48:34,452 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [117653022] [2022-11-18 01:48:34,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:48:34,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:48:34,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:48:34,479 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:48:34,479 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:48:34,479 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [117653022] [2022-11-18 01:48:34,480 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [117653022] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 01:48:34,480 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 01:48:34,480 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 01:48:34,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [733970956] [2022-11-18 01:48:34,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 01:48:34,481 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-18 01:48:34,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:48:34,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-18 01:48:34,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-18 01:48:34,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:48:34,482 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:48:34,482 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 27.5) internal successors, (55), 2 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:48:34,482 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:48:34,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:48:34,484 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable244 [2022-11-18 01:48:34,484 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)] === [2022-11-18 01:48:34,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:48:34,485 INFO L85 PathProgramCache]: Analyzing trace with hash 2136336451, now seen corresponding path program 1 times [2022-11-18 01:48:34,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:48:34,485 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1000368516] [2022-11-18 01:48:34,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:48:34,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:48:34,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:48:34,521 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:48:34,521 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:48:34,521 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1000368516] [2022-11-18 01:48:34,521 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1000368516] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 01:48:34,521 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 01:48:34,521 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 01:48:34,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395836046] [2022-11-18 01:48:34,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 01:48:34,522 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 01:48:34,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:48:34,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 01:48:34,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 01:48:34,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:48:34,523 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:48:34,523 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:48:34,523 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:48:34,523 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:48:35,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:48:35,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:48:35,037 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable245 [2022-11-18 01:48:35,037 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)] === [2022-11-18 01:48:35,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:48:35,037 INFO L85 PathProgramCache]: Analyzing trace with hash -799620616, now seen corresponding path program 1 times [2022-11-18 01:48:35,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:48:35,037 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1933598894] [2022-11-18 01:48:35,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:48:35,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:48:35,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:48:35,091 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:48:35,091 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:48:35,092 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1933598894] [2022-11-18 01:48:35,092 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1933598894] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 01:48:35,092 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [38741346] [2022-11-18 01:48:35,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:48:35,092 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:48:35,092 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 [2022-11-18 01:48:35,094 INFO L229 MonitoredProcess]: Starting monitored process 131 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 01:48:35,096 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (131)] Waiting until timeout for monitored process [2022-11-18 01:48:36,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:48:36,429 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 01:48:36,430 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 01:48:36,454 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:48:36,454 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 01:48:36,488 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:48:36,488 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [38741346] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 01:48:36,488 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 01:48:36,488 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-11-18 01:48:36,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1217132171] [2022-11-18 01:48:36,488 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 01:48:36,489 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-18 01:48:36,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:48:36,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-18 01:48:36,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-18 01:48:36,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:48:36,490 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:48:36,490 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.7) internal successors, (87), 10 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:48:36,490 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:48:36,490 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:48:36,490 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:48:36,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:48:36,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:48:36,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:48:36,831 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (131)] Ended with exit code 0 [2022-11-18 01:48:37,021 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 131 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable246 [2022-11-18 01:48:37,021 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)] === [2022-11-18 01:48:37,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:48:37,022 INFO L85 PathProgramCache]: Analyzing trace with hash -1846977051, now seen corresponding path program 1 times [2022-11-18 01:48:37,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:48:37,022 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1309181203] [2022-11-18 01:48:37,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:48:37,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:48:37,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:48:37,280 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-18 01:48:37,280 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:48:37,280 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1309181203] [2022-11-18 01:48:37,281 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1309181203] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 01:48:37,281 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 01:48:37,281 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 01:48:37,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1083145198] [2022-11-18 01:48:37,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 01:48:37,281 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 01:48:37,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:48:37,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 01:48:37,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 01:48:37,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:48:37,282 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:48:37,282 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:48:37,283 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:48:37,283 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:48:37,283 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:48:37,283 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:48:37,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:48:37,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:48:37,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:48:37,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 01:48:37,569 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable247 [2022-11-18 01:48:37,569 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)] === [2022-11-18 01:48:37,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:48:37,570 INFO L85 PathProgramCache]: Analyzing trace with hash -1846897810, now seen corresponding path program 1 times [2022-11-18 01:48:37,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:48:37,570 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [276421102] [2022-11-18 01:48:37,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:48:37,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:48:37,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:48:37,616 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-18 01:48:37,617 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:48:37,617 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [276421102] [2022-11-18 01:48:37,617 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [276421102] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 01:48:37,617 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 01:48:37,617 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 01:48:37,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1027308076] [2022-11-18 01:48:37,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 01:48:37,618 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 01:48:37,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:48:37,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 01:48:37,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 01:48:37,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:48:37,619 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:48:37,619 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:48:37,619 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:48:37,619 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:48:37,619 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:48:37,619 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-11-18 01:48:37,619 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:48:38,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:48:38,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:48:38,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:48:38,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:48:38,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:48:38,120 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable248 [2022-11-18 01:48:38,120 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)] === [2022-11-18 01:48:38,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:48:38,120 INFO L85 PathProgramCache]: Analyzing trace with hash 581304219, now seen corresponding path program 1 times [2022-11-18 01:48:38,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:48:38,120 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [885827823] [2022-11-18 01:48:38,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:48:38,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:48:38,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:48:38,200 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-18 01:48:38,201 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:48:38,201 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [885827823] [2022-11-18 01:48:38,201 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [885827823] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 01:48:38,201 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1150892879] [2022-11-18 01:48:38,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:48:38,201 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:48:38,201 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 [2022-11-18 01:48:38,202 INFO L229 MonitoredProcess]: Starting monitored process 132 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 01:48:38,205 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (132)] Waiting until timeout for monitored process [2022-11-18 01:48:39,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:48:39,491 INFO L263 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-18 01:48:39,492 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 01:48:39,577 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 01:48:39,577 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 01:48:39,698 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 01:48:39,698 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1150892879] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 01:48:39,698 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 01:48:39,698 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 9, 9] total 19 [2022-11-18 01:48:39,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282806696] [2022-11-18 01:48:39,698 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 01:48:39,699 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-18 01:48:39,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:48:39,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-18 01:48:39,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=263, Unknown=0, NotChecked=0, Total=342 [2022-11-18 01:48:39,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:48:39,700 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:48:39,700 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 11.631578947368421) internal successors, (221), 19 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:48:39,700 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:48:39,700 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:48:39,700 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:48:39,701 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:48:39,701 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:48:39,701 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:48:40,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:48:40,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:48:40,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:48:40,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:48:40,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:48:40,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-18 01:48:40,673 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (132)] Ended with exit code 0 [2022-11-18 01:48:40,864 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable249,132 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:48:40,864 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)] === [2022-11-18 01:48:40,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:48:40,865 INFO L85 PathProgramCache]: Analyzing trace with hash -1616720121, now seen corresponding path program 1 times [2022-11-18 01:48:40,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:48:40,865 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [720133761] [2022-11-18 01:48:40,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:48:40,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:48:40,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:48:41,150 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 217 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 01:48:41,151 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:48:41,151 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [720133761] [2022-11-18 01:48:41,151 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [720133761] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 01:48:41,151 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [959472534] [2022-11-18 01:48:41,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:48:41,151 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:48:41,151 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 [2022-11-18 01:48:41,160 INFO L229 MonitoredProcess]: Starting monitored process 133 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 01:48:41,164 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (133)] Waiting until timeout for monitored process [2022-11-18 01:48:42,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:48:42,434 INFO L263 TraceCheckSpWp]: Trace formula consists of 490 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-18 01:48:42,436 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 01:48:42,542 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 217 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 01:48:42,542 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 01:48:42,878 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 217 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 01:48:42,878 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [959472534] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 01:48:42,878 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 01:48:42,879 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 34 [2022-11-18 01:48:42,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49244754] [2022-11-18 01:48:42,879 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 01:48:42,879 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-11-18 01:48:42,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:48:42,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-11-18 01:48:42,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2022-11-18 01:48:42,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:48:42,880 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:48:42,881 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 7.9411764705882355) internal successors, (270), 34 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:48:42,881 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:48:42,881 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:48:42,881 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:48:42,881 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:48:42,881 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:48:42,881 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-11-18 01:48:42,881 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:48:45,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:48:45,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:48:45,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:48:45,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:48:45,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:48:45,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-18 01:48:45,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-11-18 01:48:45,331 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (133)] Ended with exit code 0 [2022-11-18 01:48:45,522 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable250,133 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:48:45,523 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)] === [2022-11-18 01:48:45,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:48:45,523 INFO L85 PathProgramCache]: Analyzing trace with hash -326266261, now seen corresponding path program 1 times [2022-11-18 01:48:45,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:48:45,523 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1792165479] [2022-11-18 01:48:45,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:48:45,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:48:45,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:48:46,543 INFO L134 CoverageAnalysis]: Checked inductivity of 1073 backedges. 0 proven. 1065 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 01:48:46,543 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:48:46,543 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1792165479] [2022-11-18 01:48:46,543 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1792165479] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 01:48:46,544 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [527579129] [2022-11-18 01:48:46,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:48:46,544 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:48:46,544 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 [2022-11-18 01:48:46,545 INFO L229 MonitoredProcess]: Starting monitored process 134 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 01:48:46,547 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (134)] Waiting until timeout for monitored process [2022-11-18 01:48:47,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:48:47,859 INFO L263 TraceCheckSpWp]: Trace formula consists of 698 conjuncts, 32 conjunts are in the unsatisfiable core [2022-11-18 01:48:47,861 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 01:48:48,066 INFO L134 CoverageAnalysis]: Checked inductivity of 1073 backedges. 0 proven. 1065 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 01:48:48,066 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 01:48:49,129 INFO L134 CoverageAnalysis]: Checked inductivity of 1073 backedges. 0 proven. 1065 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 01:48:49,129 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [527579129] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 01:48:49,129 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 01:48:49,129 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33, 33] total 66 [2022-11-18 01:48:49,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1314989200] [2022-11-18 01:48:49,130 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 01:48:49,130 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 66 states [2022-11-18 01:48:49,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:48:49,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2022-11-18 01:48:49,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1122, Invalid=3168, Unknown=0, NotChecked=0, Total=4290 [2022-11-18 01:48:49,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:48:49,132 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:48:49,132 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 66 states, 66 states have (on average 6.515151515151516) internal successors, (430), 66 states have internal predecessors, (430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:48:49,132 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:48:49,132 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:48:49,132 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:48:49,132 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:48:49,133 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:48:49,133 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-11-18 01:48:49,133 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2022-11-18 01:48:49,133 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:48:58,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:48:58,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:48:58,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:48:58,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:48:58,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:48:58,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-18 01:48:58,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-11-18 01:48:58,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2022-11-18 01:48:58,743 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (134)] Forceful destruction successful, exit code 0 [2022-11-18 01:48:58,932 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable251,134 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:48:58,933 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)] === [2022-11-18 01:48:58,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:48:58,933 INFO L85 PathProgramCache]: Analyzing trace with hash 1898287283, now seen corresponding path program 1 times [2022-11-18 01:48:58,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:48:58,933 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [628342229] [2022-11-18 01:48:58,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:48:58,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:48:59,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:49:02,163 INFO L134 CoverageAnalysis]: Checked inductivity of 4689 backedges. 0 proven. 4681 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 01:49:02,163 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:49:02,163 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [628342229] [2022-11-18 01:49:02,163 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [628342229] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 01:49:02,163 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1901566739] [2022-11-18 01:49:02,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:49:02,163 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:49:02,164 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 [2022-11-18 01:49:02,165 INFO L229 MonitoredProcess]: Starting monitored process 135 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 01:49:02,167 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (135)] Waiting until timeout for monitored process [2022-11-18 01:49:03,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:49:03,598 INFO L263 TraceCheckSpWp]: Trace formula consists of 1114 conjuncts, 64 conjunts are in the unsatisfiable core [2022-11-18 01:49:03,603 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 01:49:04,054 INFO L134 CoverageAnalysis]: Checked inductivity of 4689 backedges. 0 proven. 4681 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 01:49:04,054 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 01:49:07,896 INFO L134 CoverageAnalysis]: Checked inductivity of 4689 backedges. 0 proven. 4681 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 01:49:07,896 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1901566739] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 01:49:07,896 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 01:49:07,897 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [65, 65, 65] total 130 [2022-11-18 01:49:07,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539699981] [2022-11-18 01:49:07,897 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 01:49:07,898 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 130 states [2022-11-18 01:49:07,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:49:07,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 130 interpolants. [2022-11-18 01:49:07,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4290, Invalid=12480, Unknown=0, NotChecked=0, Total=16770 [2022-11-18 01:49:07,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:49:07,904 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:49:07,904 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 130 states, 130 states have (on average 5.769230769230769) internal successors, (750), 130 states have internal predecessors, (750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:49:07,905 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:49:07,905 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:49:07,905 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:49:07,905 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:49:07,905 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:49:07,905 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-11-18 01:49:07,906 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2022-11-18 01:49:07,906 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 93 states. [2022-11-18 01:49:07,906 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:49:15,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:49:15,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:49:15,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:49:15,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:49:15,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:49:15,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-18 01:49:15,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-11-18 01:49:15,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2022-11-18 01:49:15,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2022-11-18 01:49:15,301 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (135)] Ended with exit code 0 [2022-11-18 01:49:15,492 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable252,135 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:49:15,493 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)] === [2022-11-18 01:49:15,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:49:15,493 INFO L85 PathProgramCache]: Analyzing trace with hash -235648123, now seen corresponding path program 1 times [2022-11-18 01:49:15,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:49:15,493 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2005122875] [2022-11-18 01:49:15,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:49:15,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:49:15,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 01:49:15,554 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 01:49:15,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 01:49:15,705 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 01:49:15,705 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-18 01:49:15,706 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 7 remaining) [2022-11-18 01:49:15,706 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 7 remaining) [2022-11-18 01:49:15,706 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 7 remaining) [2022-11-18 01:49:15,706 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 7 remaining) [2022-11-18 01:49:15,706 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 7 remaining) [2022-11-18 01:49:15,707 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (1 of 7 remaining) [2022-11-18 01:49:15,707 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK (0 of 7 remaining) [2022-11-18 01:49:15,707 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable253 [2022-11-18 01:49:15,711 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 01:49:15,711 WARN L233 ceAbstractionStarter]: 31 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-18 01:49:15,711 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 32 thread instances. [2022-11-18 01:49:15,797 INFO L144 ThreadInstanceAdder]: Constructed 32 joinOtherThreadTransitions. [2022-11-18 01:49:15,804 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 01:49:15,804 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-11-18 01:49:15,804 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 [2022-11-18 01:49:15,805 INFO L229 MonitoredProcess]: Starting monitored process 136 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-11-18 01:49:15,817 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-11-18 01:49:15,817 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2022-11-18 01:49:15,818 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;@38e98ff3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 01:49:15,818 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-11-18 01:49:15,839 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (136)] Waiting until timeout for monitored process [2022-11-18 01:49:15,858 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)] === [2022-11-18 01:49:15,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:49:15,858 INFO L85 PathProgramCache]: Analyzing trace with hash -743119462, now seen corresponding path program 1 times [2022-11-18 01:49:15,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:49:15,858 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1164530095] [2022-11-18 01:49:15,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:49:15,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:49:15,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:49:15,891 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:49:15,892 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:49:15,892 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1164530095] [2022-11-18 01:49:15,892 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1164530095] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 01:49:15,892 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 01:49:15,892 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 01:49:15,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059439613] [2022-11-18 01:49:15,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 01:49:15,893 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-18 01:49:15,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:49:15,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-18 01:49:15,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-18 01:49:15,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:49:15,901 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:49:15,901 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 27.5) internal successors, (55), 2 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:49:15,903 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:49:15,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:49:15,907 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable254 [2022-11-18 01:49:15,907 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)] === [2022-11-18 01:49:15,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:49:15,910 INFO L85 PathProgramCache]: Analyzing trace with hash 764432347, now seen corresponding path program 1 times [2022-11-18 01:49:15,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:49:15,914 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [843235442] [2022-11-18 01:49:15,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:49:15,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:49:15,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:49:15,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:49:15,970 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:49:15,971 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [843235442] [2022-11-18 01:49:15,971 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [843235442] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 01:49:15,971 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 01:49:15,971 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 01:49:15,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1169276543] [2022-11-18 01:49:15,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 01:49:15,980 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 01:49:15,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:49:15,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 01:49:15,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 01:49:15,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:49:15,983 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:49:15,983 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:49:15,983 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:49:15,983 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:49:16,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:49:16,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:49:16,531 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable255 [2022-11-18 01:49:16,532 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)] === [2022-11-18 01:49:16,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:49:16,532 INFO L85 PathProgramCache]: Analyzing trace with hash 1185891500, now seen corresponding path program 1 times [2022-11-18 01:49:16,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:49:16,533 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [862780335] [2022-11-18 01:49:16,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:49:16,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:49:16,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:49:16,597 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:49:16,597 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:49:16,597 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [862780335] [2022-11-18 01:49:16,597 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [862780335] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 01:49:16,597 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [856873145] [2022-11-18 01:49:16,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:49:16,597 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:49:16,598 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 [2022-11-18 01:49:16,599 INFO L229 MonitoredProcess]: Starting monitored process 137 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 01:49:16,601 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (137)] Waiting until timeout for monitored process [2022-11-18 01:49:17,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:49:17,860 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 01:49:17,861 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 01:49:17,885 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:49:17,885 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 01:49:17,918 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:49:17,918 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [856873145] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 01:49:17,919 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 01:49:17,919 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-11-18 01:49:17,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1551110970] [2022-11-18 01:49:17,919 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 01:49:17,919 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-18 01:49:17,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:49:17,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-18 01:49:17,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-18 01:49:17,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:49:17,920 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:49:17,921 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.7) internal successors, (87), 10 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:49:17,921 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:49:17,921 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:49:17,921 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:49:18,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:49:18,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:49:18,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:49:18,257 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (137)] Forceful destruction successful, exit code 0 [2022-11-18 01:49:18,446 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 137 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable256 [2022-11-18 01:49:18,447 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)] === [2022-11-18 01:49:18,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:49:18,447 INFO L85 PathProgramCache]: Analyzing trace with hash 981155281, now seen corresponding path program 1 times [2022-11-18 01:49:18,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:49:18,447 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [828746841] [2022-11-18 01:49:18,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:49:18,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:49:18,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:49:18,529 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-18 01:49:18,529 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:49:18,529 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [828746841] [2022-11-18 01:49:18,529 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [828746841] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 01:49:18,530 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 01:49:18,530 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 01:49:18,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937854950] [2022-11-18 01:49:18,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 01:49:18,530 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 01:49:18,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:49:18,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 01:49:18,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 01:49:18,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:49:18,532 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:49:18,532 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:49:18,533 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:49:18,533 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:49:18,533 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:49:18,533 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:49:18,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:49:18,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:49:18,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:49:18,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 01:49:18,884 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable257 [2022-11-18 01:49:18,885 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)] === [2022-11-18 01:49:18,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:49:18,885 INFO L85 PathProgramCache]: Analyzing trace with hash -182857318, now seen corresponding path program 1 times [2022-11-18 01:49:18,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:49:18,885 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [791902176] [2022-11-18 01:49:18,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:49:18,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:49:18,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:49:18,933 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-18 01:49:18,934 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:49:18,934 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [791902176] [2022-11-18 01:49:18,934 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [791902176] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 01:49:18,934 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 01:49:18,934 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 01:49:18,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1032558412] [2022-11-18 01:49:18,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 01:49:18,935 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 01:49:18,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:49:18,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 01:49:18,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 01:49:18,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:49:18,936 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:49:18,936 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:49:18,936 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:49:18,937 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:49:18,937 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:49:18,937 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-11-18 01:49:18,937 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:49:19,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:49:19,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:49:19,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:49:19,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:49:19,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:49:19,611 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable258 [2022-11-18 01:49:19,611 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)] === [2022-11-18 01:49:19,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:49:19,611 INFO L85 PathProgramCache]: Analyzing trace with hash 1507008266, now seen corresponding path program 1 times [2022-11-18 01:49:19,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:49:19,612 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [384407160] [2022-11-18 01:49:19,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:49:19,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:49:19,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:49:19,710 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-18 01:49:19,710 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:49:19,711 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [384407160] [2022-11-18 01:49:19,711 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [384407160] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 01:49:19,711 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1417671055] [2022-11-18 01:49:19,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:49:19,711 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:49:19,711 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 [2022-11-18 01:49:19,712 INFO L229 MonitoredProcess]: Starting monitored process 138 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 01:49:19,715 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (138)] Waiting until timeout for monitored process [2022-11-18 01:49:21,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:49:21,055 INFO L263 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-18 01:49:21,057 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 01:49:21,142 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 01:49:21,142 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 01:49:21,260 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 01:49:21,260 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1417671055] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 01:49:21,260 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 01:49:21,260 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 9, 9] total 19 [2022-11-18 01:49:21,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1556744994] [2022-11-18 01:49:21,260 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 01:49:21,261 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-18 01:49:21,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:49:21,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-18 01:49:21,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=263, Unknown=0, NotChecked=0, Total=342 [2022-11-18 01:49:21,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:49:21,262 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:49:21,262 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 11.631578947368421) internal successors, (221), 19 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:49:21,262 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:49:21,263 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:49:21,263 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:49:21,263 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:49:21,263 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:49:21,263 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:49:22,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:49:22,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:49:22,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:49:22,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:49:22,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:49:22,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-18 01:49:22,265 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (138)] Ended with exit code 0 [2022-11-18 01:49:22,455 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable259,138 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:49:22,456 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)] === [2022-11-18 01:49:22,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:49:22,456 INFO L85 PathProgramCache]: Analyzing trace with hash -896088285, now seen corresponding path program 1 times [2022-11-18 01:49:22,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:49:22,456 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1583830456] [2022-11-18 01:49:22,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:49:22,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:49:22,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:49:22,754 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 217 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 01:49:22,754 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:49:22,754 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1583830456] [2022-11-18 01:49:22,754 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1583830456] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 01:49:22,754 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2143117289] [2022-11-18 01:49:22,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:49:22,754 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:49:22,754 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 [2022-11-18 01:49:22,755 INFO L229 MonitoredProcess]: Starting monitored process 139 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 01:49:22,758 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (139)] Waiting until timeout for monitored process [2022-11-18 01:49:24,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:49:24,155 INFO L263 TraceCheckSpWp]: Trace formula consists of 490 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-18 01:49:24,158 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 01:49:24,274 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 217 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 01:49:24,274 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 01:49:24,598 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 217 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 01:49:24,599 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2143117289] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 01:49:24,599 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 01:49:24,599 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 34 [2022-11-18 01:49:24,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283883498] [2022-11-18 01:49:24,599 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 01:49:24,600 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-11-18 01:49:24,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:49:24,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-11-18 01:49:24,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2022-11-18 01:49:24,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:49:24,602 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:49:24,603 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 7.9411764705882355) internal successors, (270), 34 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:49:24,603 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:49:24,603 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:49:24,603 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:49:24,604 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:49:24,604 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:49:24,604 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-11-18 01:49:24,604 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:49:26,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:49:26,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:49:26,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:49:26,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:49:26,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:49:26,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-18 01:49:26,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-11-18 01:49:26,734 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (139)] Ended with exit code 0 [2022-11-18 01:49:26,925 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 139 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable260 [2022-11-18 01:49:26,926 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)] === [2022-11-18 01:49:26,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:49:26,926 INFO L85 PathProgramCache]: Analyzing trace with hash -1148423129, now seen corresponding path program 1 times [2022-11-18 01:49:26,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:49:26,926 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [134428266] [2022-11-18 01:49:26,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:49:26,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:49:26,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:49:27,866 INFO L134 CoverageAnalysis]: Checked inductivity of 1073 backedges. 0 proven. 1065 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 01:49:27,866 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:49:27,866 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [134428266] [2022-11-18 01:49:27,866 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [134428266] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 01:49:27,866 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1821794996] [2022-11-18 01:49:27,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:49:27,867 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:49:27,867 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 [2022-11-18 01:49:27,868 INFO L229 MonitoredProcess]: Starting monitored process 140 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 01:49:27,870 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (140)] Waiting until timeout for monitored process [2022-11-18 01:49:29,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:49:29,257 INFO L263 TraceCheckSpWp]: Trace formula consists of 698 conjuncts, 32 conjunts are in the unsatisfiable core [2022-11-18 01:49:29,260 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 01:49:29,457 INFO L134 CoverageAnalysis]: Checked inductivity of 1073 backedges. 0 proven. 1065 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 01:49:29,457 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 01:49:30,453 INFO L134 CoverageAnalysis]: Checked inductivity of 1073 backedges. 0 proven. 1065 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 01:49:30,453 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1821794996] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 01:49:30,453 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 01:49:30,454 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33, 33] total 66 [2022-11-18 01:49:30,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [410842128] [2022-11-18 01:49:30,454 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 01:49:30,454 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 66 states [2022-11-18 01:49:30,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:49:30,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2022-11-18 01:49:30,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1122, Invalid=3168, Unknown=0, NotChecked=0, Total=4290 [2022-11-18 01:49:30,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:49:30,456 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:49:30,457 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 66 states, 66 states have (on average 6.515151515151516) internal successors, (430), 66 states have internal predecessors, (430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:49:30,457 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:49:30,457 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:49:30,457 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:49:30,457 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:49:30,457 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:49:30,457 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-11-18 01:49:30,457 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2022-11-18 01:49:30,457 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:49:37,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:49:37,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:49:37,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:49:37,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:49:37,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:49:37,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-18 01:49:37,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-11-18 01:49:37,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2022-11-18 01:49:37,487 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (140)] Ended with exit code 0 [2022-11-18 01:49:37,676 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable261,140 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:49:37,676 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)] === [2022-11-18 01:49:37,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:49:37,677 INFO L85 PathProgramCache]: Analyzing trace with hash 848335023, now seen corresponding path program 1 times [2022-11-18 01:49:37,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:49:37,677 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [24783062] [2022-11-18 01:49:37,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:49:37,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:49:37,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:49:40,889 INFO L134 CoverageAnalysis]: Checked inductivity of 4689 backedges. 0 proven. 4681 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 01:49:40,889 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:49:40,889 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [24783062] [2022-11-18 01:49:40,890 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [24783062] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 01:49:40,890 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [447351093] [2022-11-18 01:49:40,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:49:40,890 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:49:40,890 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 [2022-11-18 01:49:40,891 INFO L229 MonitoredProcess]: Starting monitored process 141 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 01:49:40,894 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (141)] Waiting until timeout for monitored process [2022-11-18 01:49:42,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:49:42,451 INFO L263 TraceCheckSpWp]: Trace formula consists of 1114 conjuncts, 64 conjunts are in the unsatisfiable core [2022-11-18 01:49:42,455 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 01:49:42,894 INFO L134 CoverageAnalysis]: Checked inductivity of 4689 backedges. 0 proven. 4681 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 01:49:42,894 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 01:49:46,837 INFO L134 CoverageAnalysis]: Checked inductivity of 4689 backedges. 0 proven. 4681 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 01:49:46,837 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [447351093] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 01:49:46,838 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 01:49:46,838 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [65, 65, 65] total 130 [2022-11-18 01:49:46,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209275545] [2022-11-18 01:49:46,838 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 01:49:46,839 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 130 states [2022-11-18 01:49:46,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:49:46,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 130 interpolants. [2022-11-18 01:49:46,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4290, Invalid=12480, Unknown=0, NotChecked=0, Total=16770 [2022-11-18 01:49:46,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:49:46,845 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:49:46,846 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 130 states, 130 states have (on average 5.769230769230769) internal successors, (750), 130 states have internal predecessors, (750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:49:46,846 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:49:46,846 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:49:46,846 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:49:46,846 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:49:46,846 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:49:46,846 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-11-18 01:49:46,846 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2022-11-18 01:49:46,847 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 93 states. [2022-11-18 01:49:46,847 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:49:55,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:49:55,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:49:55,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:49:55,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:49:55,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:49:55,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-18 01:49:55,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-11-18 01:49:55,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2022-11-18 01:49:55,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 99 states. [2022-11-18 01:49:55,715 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (141)] Forceful destruction successful, exit code 0 [2022-11-18 01:49:55,904 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable262,141 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:49:55,904 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)] === [2022-11-18 01:49:55,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:49:55,904 INFO L85 PathProgramCache]: Analyzing trace with hash -451299315, now seen corresponding path program 1 times [2022-11-18 01:49:55,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:49:55,904 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2078416967] [2022-11-18 01:49:55,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:49:55,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:49:55,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 01:49:55,972 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 01:49:56,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 01:49:56,106 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 01:49:56,107 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-18 01:49:56,107 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 7 remaining) [2022-11-18 01:49:56,107 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 7 remaining) [2022-11-18 01:49:56,107 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 7 remaining) [2022-11-18 01:49:56,107 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 7 remaining) [2022-11-18 01:49:56,107 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 7 remaining) [2022-11-18 01:49:56,107 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (1 of 7 remaining) [2022-11-18 01:49:56,107 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK (0 of 7 remaining) [2022-11-18 01:49:56,108 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable263 [2022-11-18 01:49:56,112 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 01:49:56,113 WARN L233 ceAbstractionStarter]: 32 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-18 01:49:56,113 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 33 thread instances. [2022-11-18 01:49:56,191 INFO L144 ThreadInstanceAdder]: Constructed 33 joinOtherThreadTransitions. [2022-11-18 01:49:56,197 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 01:49:56,197 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-11-18 01:49:56,197 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 [2022-11-18 01:49:56,198 INFO L229 MonitoredProcess]: Starting monitored process 142 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-11-18 01:49:56,200 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (142)] Waiting until timeout for monitored process [2022-11-18 01:49:56,202 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-11-18 01:49:56,203 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2022-11-18 01:49:56,203 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;@38e98ff3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 01:49:56,203 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-11-18 01:49:56,226 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)] === [2022-11-18 01:49:56,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:49:56,226 INFO L85 PathProgramCache]: Analyzing trace with hash -1498974862, now seen corresponding path program 1 times [2022-11-18 01:49:56,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:49:56,226 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [490109120] [2022-11-18 01:49:56,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:49:56,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:49:56,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:49:56,254 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:49:56,254 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:49:56,254 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [490109120] [2022-11-18 01:49:56,255 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [490109120] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 01:49:56,255 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 01:49:56,255 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 01:49:56,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [475471952] [2022-11-18 01:49:56,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 01:49:56,256 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-18 01:49:56,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:49:56,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-18 01:49:56,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-18 01:49:56,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:49:56,257 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:49:56,257 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 27.5) internal successors, (55), 2 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:49:56,257 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:49:56,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:49:56,259 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable264 [2022-11-18 01:49:56,259 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)] === [2022-11-18 01:49:56,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:49:56,260 INFO L85 PathProgramCache]: Analyzing trace with hash 8576947, now seen corresponding path program 1 times [2022-11-18 01:49:56,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:49:56,260 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1174541103] [2022-11-18 01:49:56,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:49:56,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:49:56,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:49:56,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:49:56,309 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:49:56,309 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1174541103] [2022-11-18 01:49:56,310 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1174541103] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 01:49:56,310 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 01:49:56,310 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 01:49:56,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106516326] [2022-11-18 01:49:56,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 01:49:56,311 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 01:49:56,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:49:56,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 01:49:56,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 01:49:56,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:49:56,312 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:49:56,312 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:49:56,312 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:49:56,313 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:49:56,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:49:56,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:49:56,941 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable265 [2022-11-18 01:49:56,942 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)] === [2022-11-18 01:49:56,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:49:56,942 INFO L85 PathProgramCache]: Analyzing trace with hash 386320288, now seen corresponding path program 1 times [2022-11-18 01:49:56,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:49:56,942 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [636100290] [2022-11-18 01:49:56,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:49:56,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:49:56,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:49:57,010 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:49:57,010 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:49:57,010 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [636100290] [2022-11-18 01:49:57,010 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [636100290] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 01:49:57,011 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1252680001] [2022-11-18 01:49:57,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:49:57,011 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:49:57,011 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 [2022-11-18 01:49:57,014 INFO L229 MonitoredProcess]: Starting monitored process 143 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 01:49:57,017 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (143)] Waiting until timeout for monitored process [2022-11-18 01:49:58,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:49:58,366 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 01:49:58,367 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 01:49:58,389 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:49:58,389 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 01:49:58,426 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:49:58,426 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1252680001] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 01:49:58,427 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 01:49:58,427 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-11-18 01:49:58,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [846018798] [2022-11-18 01:49:58,427 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 01:49:58,427 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-18 01:49:58,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:49:58,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-18 01:49:58,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-18 01:49:58,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:49:58,429 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:49:58,429 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.7) internal successors, (87), 10 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:49:58,430 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:49:58,430 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:49:58,430 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:49:58,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:49:58,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:49:58,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:49:58,799 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (143)] Ended with exit code 0 [2022-11-18 01:49:58,986 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 143 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable266 [2022-11-18 01:49:58,986 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)] === [2022-11-18 01:49:58,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:49:58,987 INFO L85 PathProgramCache]: Analyzing trace with hash -284176899, now seen corresponding path program 1 times [2022-11-18 01:49:58,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:49:58,987 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039832382] [2022-11-18 01:49:58,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:49:58,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:49:59,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:49:59,074 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-18 01:49:59,075 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:49:59,075 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1039832382] [2022-11-18 01:49:59,075 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1039832382] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 01:49:59,075 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 01:49:59,075 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 01:49:59,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1538331533] [2022-11-18 01:49:59,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 01:49:59,076 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 01:49:59,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:49:59,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 01:49:59,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 01:49:59,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:49:59,077 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:49:59,077 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:49:59,077 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:49:59,078 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:49:59,078 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:49:59,078 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:49:59,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:49:59,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:49:59,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:49:59,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 01:49:59,408 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable267 [2022-11-18 01:49:59,408 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)] === [2022-11-18 01:49:59,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:49:59,408 INFO L85 PathProgramCache]: Analyzing trace with hash 612011974, now seen corresponding path program 1 times [2022-11-18 01:49:59,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:49:59,409 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [864281213] [2022-11-18 01:49:59,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:49:59,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:49:59,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:49:59,463 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-18 01:49:59,464 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:49:59,464 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [864281213] [2022-11-18 01:49:59,464 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [864281213] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 01:49:59,464 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 01:49:59,464 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 01:49:59,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831276245] [2022-11-18 01:49:59,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 01:49:59,465 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 01:49:59,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:49:59,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 01:49:59,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 01:49:59,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:49:59,466 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:49:59,466 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:49:59,466 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:49:59,466 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:49:59,466 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:49:59,466 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-11-18 01:49:59,466 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:50:00,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:50:00,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:50:00,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:50:00,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:50:00,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:50:00,135 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable268 [2022-11-18 01:50:00,135 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)] === [2022-11-18 01:50:00,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:50:00,136 INFO L85 PathProgramCache]: Analyzing trace with hash -1239620167, now seen corresponding path program 1 times [2022-11-18 01:50:00,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:50:00,136 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1036802141] [2022-11-18 01:50:00,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:50:00,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:50:00,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:50:00,228 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-18 01:50:00,228 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:50:00,228 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1036802141] [2022-11-18 01:50:00,228 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1036802141] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 01:50:00,228 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1510125766] [2022-11-18 01:50:00,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:50:00,229 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:50:00,229 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 [2022-11-18 01:50:00,230 INFO L229 MonitoredProcess]: Starting monitored process 144 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 01:50:00,232 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (144)] Waiting until timeout for monitored process [2022-11-18 01:50:01,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:50:01,744 INFO L263 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-18 01:50:01,746 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 01:50:01,839 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 01:50:01,839 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 01:50:01,966 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 01:50:01,966 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1510125766] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 01:50:01,966 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 01:50:01,966 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 9, 9] total 19 [2022-11-18 01:50:01,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [788946908] [2022-11-18 01:50:01,966 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 01:50:01,967 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-18 01:50:01,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:50:01,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-18 01:50:01,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=263, Unknown=0, NotChecked=0, Total=342 [2022-11-18 01:50:01,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:50:01,971 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:50:01,972 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 11.631578947368421) internal successors, (221), 19 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:50:01,972 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:50:01,972 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:50:01,972 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:50:01,973 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:50:01,973 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:50:01,973 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:50:03,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:50:03,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:50:03,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:50:03,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:50:03,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:50:03,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-18 01:50:03,063 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (144)] Forceful destruction successful, exit code 0 [2022-11-18 01:50:03,248 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable269,144 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:50:03,248 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)] === [2022-11-18 01:50:03,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:50:03,248 INFO L85 PathProgramCache]: Analyzing trace with hash 1023269311, now seen corresponding path program 1 times [2022-11-18 01:50:03,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:50:03,248 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [331535255] [2022-11-18 01:50:03,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:50:03,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:50:03,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:50:03,557 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 217 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 01:50:03,557 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:50:03,557 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [331535255] [2022-11-18 01:50:03,558 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [331535255] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 01:50:03,558 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2129943231] [2022-11-18 01:50:03,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:50:03,558 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:50:03,558 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 [2022-11-18 01:50:03,559 INFO L229 MonitoredProcess]: Starting monitored process 145 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 01:50:03,561 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (145)] Waiting until timeout for monitored process [2022-11-18 01:50:05,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:50:05,074 INFO L263 TraceCheckSpWp]: Trace formula consists of 490 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-18 01:50:05,076 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 01:50:05,195 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 217 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 01:50:05,195 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 01:50:05,518 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 217 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 01:50:05,518 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2129943231] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 01:50:05,519 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 01:50:05,519 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 34 [2022-11-18 01:50:05,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135847813] [2022-11-18 01:50:05,519 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 01:50:05,520 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-11-18 01:50:05,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:50:05,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-11-18 01:50:05,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2022-11-18 01:50:05,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:50:05,522 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:50:05,522 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 7.9411764705882355) internal successors, (270), 34 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:50:05,522 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:50:05,522 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:50:05,523 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:50:05,523 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:50:05,523 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:50:05,523 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-11-18 01:50:05,523 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:50:08,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:50:08,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:50:08,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:50:08,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:50:08,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:50:08,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-18 01:50:08,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-11-18 01:50:08,053 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (145)] Forceful destruction successful, exit code 0 [2022-11-18 01:50:08,244 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable270,145 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:50:08,244 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)] === [2022-11-18 01:50:08,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:50:08,245 INFO L85 PathProgramCache]: Analyzing trace with hash -927282077, now seen corresponding path program 1 times [2022-11-18 01:50:08,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:50:08,245 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1220323299] [2022-11-18 01:50:08,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:50:08,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:50:08,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:50:09,299 INFO L134 CoverageAnalysis]: Checked inductivity of 1073 backedges. 0 proven. 1065 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 01:50:09,299 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:50:09,299 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1220323299] [2022-11-18 01:50:09,299 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1220323299] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 01:50:09,299 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1504409702] [2022-11-18 01:50:09,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:50:09,300 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:50:09,300 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 [2022-11-18 01:50:09,310 INFO L229 MonitoredProcess]: Starting monitored process 146 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 01:50:09,312 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (146)] Waiting until timeout for monitored process [2022-11-18 01:50:10,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:50:10,898 INFO L263 TraceCheckSpWp]: Trace formula consists of 698 conjuncts, 32 conjunts are in the unsatisfiable core [2022-11-18 01:50:10,900 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 01:50:11,130 INFO L134 CoverageAnalysis]: Checked inductivity of 1073 backedges. 0 proven. 1065 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 01:50:11,130 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 01:50:12,192 INFO L134 CoverageAnalysis]: Checked inductivity of 1073 backedges. 0 proven. 1065 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 01:50:12,193 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1504409702] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 01:50:12,193 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 01:50:12,193 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33, 33] total 66 [2022-11-18 01:50:12,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [620991437] [2022-11-18 01:50:12,193 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 01:50:12,194 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 66 states [2022-11-18 01:50:12,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:50:12,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2022-11-18 01:50:12,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1122, Invalid=3168, Unknown=0, NotChecked=0, Total=4290 [2022-11-18 01:50:12,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:50:12,196 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:50:12,197 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 66 states, 66 states have (on average 6.515151515151516) internal successors, (430), 66 states have internal predecessors, (430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:50:12,197 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:50:12,197 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:50:12,197 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:50:12,197 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:50:12,197 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:50:12,197 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-11-18 01:50:12,197 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2022-11-18 01:50:12,197 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:50:21,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:50:21,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:50:21,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:50:21,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:50:21,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:50:21,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-18 01:50:21,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-11-18 01:50:21,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2022-11-18 01:50:21,329 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (146)] Forceful destruction successful, exit code 0 [2022-11-18 01:50:21,518 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 146 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable271 [2022-11-18 01:50:21,518 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)] === [2022-11-18 01:50:21,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:50:21,518 INFO L85 PathProgramCache]: Analyzing trace with hash 1289586475, now seen corresponding path program 1 times [2022-11-18 01:50:21,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:50:21,519 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [46155008] [2022-11-18 01:50:21,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:50:21,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:50:21,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:50:24,692 INFO L134 CoverageAnalysis]: Checked inductivity of 4689 backedges. 0 proven. 4681 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 01:50:24,692 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:50:24,692 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [46155008] [2022-11-18 01:50:24,692 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [46155008] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 01:50:24,692 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1334016035] [2022-11-18 01:50:24,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:50:24,692 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:50:24,692 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 [2022-11-18 01:50:24,693 INFO L229 MonitoredProcess]: Starting monitored process 147 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 01:50:24,695 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (147)] Waiting until timeout for monitored process [2022-11-18 01:50:26,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:50:26,306 INFO L263 TraceCheckSpWp]: Trace formula consists of 1114 conjuncts, 64 conjunts are in the unsatisfiable core [2022-11-18 01:50:26,310 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 01:50:26,769 INFO L134 CoverageAnalysis]: Checked inductivity of 4689 backedges. 0 proven. 4681 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 01:50:26,770 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 01:50:30,700 INFO L134 CoverageAnalysis]: Checked inductivity of 4689 backedges. 0 proven. 4681 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 01:50:30,700 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1334016035] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 01:50:30,701 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 01:50:30,701 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [65, 65, 65] total 130 [2022-11-18 01:50:30,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1518975588] [2022-11-18 01:50:30,701 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 01:50:30,702 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 130 states [2022-11-18 01:50:30,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:50:30,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 130 interpolants. [2022-11-18 01:50:30,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4290, Invalid=12480, Unknown=0, NotChecked=0, Total=16770 [2022-11-18 01:50:30,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:50:30,707 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:50:30,707 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 130 states, 130 states have (on average 5.769230769230769) internal successors, (750), 130 states have internal predecessors, (750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:50:30,707 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:50:30,708 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:50:30,708 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:50:30,708 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:50:30,708 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:50:30,708 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-11-18 01:50:30,708 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2022-11-18 01:50:30,708 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 93 states. [2022-11-18 01:50:30,708 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:50:40,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:50:40,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:50:40,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:50:40,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:50:40,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:50:40,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-18 01:50:40,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-11-18 01:50:40,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2022-11-18 01:50:40,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 102 states. [2022-11-18 01:50:40,369 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (147)] Forceful destruction successful, exit code 0 [2022-11-18 01:50:40,557 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable272,147 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:50:40,558 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)] === [2022-11-18 01:50:40,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:50:40,558 INFO L85 PathProgramCache]: Analyzing trace with hash -1136229682, now seen corresponding path program 1 times [2022-11-18 01:50:40,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:50:40,558 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [665617122] [2022-11-18 01:50:40,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:50:40,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:50:40,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 01:50:40,627 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 01:50:40,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 01:50:40,734 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 01:50:40,735 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-18 01:50:40,735 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 7 remaining) [2022-11-18 01:50:40,735 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 7 remaining) [2022-11-18 01:50:40,735 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 7 remaining) [2022-11-18 01:50:40,735 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 7 remaining) [2022-11-18 01:50:40,735 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 7 remaining) [2022-11-18 01:50:40,735 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (1 of 7 remaining) [2022-11-18 01:50:40,735 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK (0 of 7 remaining) [2022-11-18 01:50:40,736 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable273 [2022-11-18 01:50:40,739 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 01:50:40,739 WARN L233 ceAbstractionStarter]: 33 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-18 01:50:40,739 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 34 thread instances. [2022-11-18 01:50:40,825 INFO L144 ThreadInstanceAdder]: Constructed 34 joinOtherThreadTransitions. [2022-11-18 01:50:40,831 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 01:50:40,832 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-11-18 01:50:40,832 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 [2022-11-18 01:50:40,833 INFO L229 MonitoredProcess]: Starting monitored process 148 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-11-18 01:50:40,842 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-11-18 01:50:40,842 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2022-11-18 01:50:40,842 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;@38e98ff3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 01:50:40,842 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-11-18 01:50:40,855 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (148)] Waiting until timeout for monitored process [2022-11-18 01:50:40,871 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)] === [2022-11-18 01:50:40,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:50:40,871 INFO L85 PathProgramCache]: Analyzing trace with hash -1638781558, now seen corresponding path program 1 times [2022-11-18 01:50:40,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:50:40,871 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [354530216] [2022-11-18 01:50:40,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:50:40,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:50:40,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:50:40,900 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:50:40,901 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:50:40,901 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [354530216] [2022-11-18 01:50:40,901 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [354530216] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 01:50:40,901 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 01:50:40,901 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 01:50:40,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2109383474] [2022-11-18 01:50:40,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 01:50:40,901 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-18 01:50:40,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:50:40,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-18 01:50:40,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-18 01:50:40,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:50:40,902 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:50:40,902 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 27.5) internal successors, (55), 2 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:50:40,903 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:50:40,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:50:40,904 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable274 [2022-11-18 01:50:40,904 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)] === [2022-11-18 01:50:40,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:50:40,904 INFO L85 PathProgramCache]: Analyzing trace with hash -131229749, now seen corresponding path program 1 times [2022-11-18 01:50:40,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:50:40,905 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [103952694] [2022-11-18 01:50:40,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:50:40,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:50:40,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:50:40,945 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:50:40,945 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:50:40,945 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [103952694] [2022-11-18 01:50:40,945 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [103952694] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 01:50:40,945 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 01:50:40,945 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 01:50:40,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369095330] [2022-11-18 01:50:40,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 01:50:40,946 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 01:50:40,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:50:40,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 01:50:40,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 01:50:40,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:50:40,947 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:50:40,947 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:50:40,947 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:50:40,947 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:50:41,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:50:41,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:50:41,550 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable275 [2022-11-18 01:50:41,550 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)] === [2022-11-18 01:50:41,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:50:41,551 INFO L85 PathProgramCache]: Analyzing trace with hash 1096633044, now seen corresponding path program 1 times [2022-11-18 01:50:41,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:50:41,551 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1621073259] [2022-11-18 01:50:41,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:50:41,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:50:41,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:50:41,611 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:50:41,611 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:50:41,611 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1621073259] [2022-11-18 01:50:41,611 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1621073259] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 01:50:41,611 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [431803253] [2022-11-18 01:50:41,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:50:41,612 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:50:41,612 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 [2022-11-18 01:50:41,615 INFO L229 MonitoredProcess]: Starting monitored process 149 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 01:50:41,616 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (149)] Waiting until timeout for monitored process [2022-11-18 01:50:43,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:50:43,043 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 01:50:43,044 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 01:50:43,066 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:50:43,067 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 01:50:43,098 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:50:43,099 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [431803253] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 01:50:43,099 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 01:50:43,099 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-11-18 01:50:43,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2065951331] [2022-11-18 01:50:43,099 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 01:50:43,099 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-18 01:50:43,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:50:43,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-18 01:50:43,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-18 01:50:43,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:50:43,101 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:50:43,101 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.7) internal successors, (87), 10 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:50:43,101 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:50:43,101 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:50:43,101 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:50:43,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:50:43,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:50:43,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:50:43,463 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (149)] Forceful destruction successful, exit code 0 [2022-11-18 01:50:43,651 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 149 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable276 [2022-11-18 01:50:43,651 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)] === [2022-11-18 01:50:43,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:50:43,651 INFO L85 PathProgramCache]: Analyzing trace with hash -1348006295, now seen corresponding path program 1 times [2022-11-18 01:50:43,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:50:43,652 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1829822326] [2022-11-18 01:50:43,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:50:43,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:50:43,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:50:43,737 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-18 01:50:43,737 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:50:43,737 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1829822326] [2022-11-18 01:50:43,737 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1829822326] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 01:50:43,738 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 01:50:43,738 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 01:50:43,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2000813731] [2022-11-18 01:50:43,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 01:50:43,738 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 01:50:43,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:50:43,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 01:50:43,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 01:50:43,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:50:43,740 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:50:43,740 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:50:43,740 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:50:43,741 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:50:43,741 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:50:43,741 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:50:44,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:50:44,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:50:44,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:50:44,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 01:50:44,174 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable277 [2022-11-18 01:50:44,174 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)] === [2022-11-18 01:50:44,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:50:44,174 INFO L85 PathProgramCache]: Analyzing trace with hash 537710066, now seen corresponding path program 1 times [2022-11-18 01:50:44,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:50:44,174 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1268598819] [2022-11-18 01:50:44,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:50:44,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:50:44,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:50:44,227 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-18 01:50:44,227 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:50:44,227 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1268598819] [2022-11-18 01:50:44,227 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1268598819] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 01:50:44,228 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 01:50:44,228 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 01:50:44,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [37502706] [2022-11-18 01:50:44,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 01:50:44,228 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 01:50:44,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:50:44,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 01:50:44,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 01:50:44,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:50:44,229 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:50:44,229 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:50:44,229 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:50:44,229 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:50:44,230 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:50:44,230 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-11-18 01:50:44,230 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:50:44,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:50:44,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:50:44,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:50:44,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:50:44,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:50:44,743 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable278 [2022-11-18 01:50:44,743 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)] === [2022-11-18 01:50:44,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:50:44,743 INFO L85 PathProgramCache]: Analyzing trace with hash 2090692392, now seen corresponding path program 1 times [2022-11-18 01:50:44,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:50:44,743 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [667196103] [2022-11-18 01:50:44,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:50:44,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:50:44,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:50:44,862 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-18 01:50:44,863 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:50:44,863 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [667196103] [2022-11-18 01:50:44,863 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [667196103] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 01:50:44,863 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [613975333] [2022-11-18 01:50:44,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:50:44,864 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:50:44,864 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 [2022-11-18 01:50:44,865 INFO L229 MonitoredProcess]: Starting monitored process 150 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 01:50:44,891 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (150)] Waiting until timeout for monitored process [2022-11-18 01:50:46,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:50:46,595 INFO L263 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-18 01:50:46,595 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 01:50:46,683 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 01:50:46,683 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 01:50:46,806 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 01:50:46,806 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [613975333] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 01:50:46,806 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 01:50:46,807 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 9, 9] total 19 [2022-11-18 01:50:46,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703030100] [2022-11-18 01:50:46,807 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 01:50:46,807 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-18 01:50:46,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:50:46,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-18 01:50:46,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=263, Unknown=0, NotChecked=0, Total=342 [2022-11-18 01:50:46,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:50:46,809 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:50:46,809 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 11.631578947368421) internal successors, (221), 19 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:50:46,809 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:50:46,809 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:50:46,809 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:50:46,809 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:50:46,809 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:50:46,809 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:50:47,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:50:47,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:50:47,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:50:47,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:50:47,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:50:47,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-18 01:50:47,880 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (150)] Ended with exit code 0 [2022-11-18 01:50:48,069 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 150 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable279 [2022-11-18 01:50:48,069 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)] === [2022-11-18 01:50:48,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:50:48,069 INFO L85 PathProgramCache]: Analyzing trace with hash -1682182693, now seen corresponding path program 1 times [2022-11-18 01:50:48,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:50:48,069 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2075390827] [2022-11-18 01:50:48,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:50:48,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:50:48,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:50:48,384 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 217 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 01:50:48,384 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:50:48,385 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2075390827] [2022-11-18 01:50:48,385 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2075390827] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 01:50:48,385 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [142813323] [2022-11-18 01:50:48,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:50:48,385 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:50:48,385 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 [2022-11-18 01:50:48,386 INFO L229 MonitoredProcess]: Starting monitored process 151 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 01:50:48,390 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (151)] Waiting until timeout for monitored process [2022-11-18 01:50:49,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:50:49,885 INFO L263 TraceCheckSpWp]: Trace formula consists of 490 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-18 01:50:49,886 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 01:50:49,987 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 217 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 01:50:49,987 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 01:50:50,306 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 217 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 01:50:50,306 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [142813323] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 01:50:50,307 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 01:50:50,307 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 34 [2022-11-18 01:50:50,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1228111283] [2022-11-18 01:50:50,307 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 01:50:50,307 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-11-18 01:50:50,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:50:50,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-11-18 01:50:50,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2022-11-18 01:50:50,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:50:50,309 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:50:50,309 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 7.9411764705882355) internal successors, (270), 34 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:50:50,309 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:50:50,309 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:50:50,310 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:50:50,310 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:50:50,310 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:50:50,310 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-11-18 01:50:50,310 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:50:52,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:50:52,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:50:52,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:50:52,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:50:52,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:50:52,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-18 01:50:52,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-11-18 01:50:52,817 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (151)] Ended with exit code 0 [2022-11-18 01:50:53,007 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable280,151 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:50:53,007 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)] === [2022-11-18 01:50:53,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:50:53,008 INFO L85 PathProgramCache]: Analyzing trace with hash 74934431, now seen corresponding path program 1 times [2022-11-18 01:50:53,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:50:53,008 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1906076524] [2022-11-18 01:50:53,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:50:53,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:50:53,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:50:54,288 INFO L134 CoverageAnalysis]: Checked inductivity of 1073 backedges. 0 proven. 1065 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 01:50:54,288 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:50:54,288 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1906076524] [2022-11-18 01:50:54,288 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1906076524] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 01:50:54,288 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1626111911] [2022-11-18 01:50:54,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:50:54,288 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:50:54,288 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 [2022-11-18 01:50:54,290 INFO L229 MonitoredProcess]: Starting monitored process 152 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 01:50:54,291 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (152)] Waiting until timeout for monitored process [2022-11-18 01:50:55,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:50:55,874 INFO L263 TraceCheckSpWp]: Trace formula consists of 698 conjuncts, 32 conjunts are in the unsatisfiable core [2022-11-18 01:50:55,877 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 01:50:56,108 INFO L134 CoverageAnalysis]: Checked inductivity of 1073 backedges. 0 proven. 1065 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 01:50:56,109 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 01:50:57,116 INFO L134 CoverageAnalysis]: Checked inductivity of 1073 backedges. 0 proven. 1065 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 01:50:57,116 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1626111911] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 01:50:57,116 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 01:50:57,117 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33, 33] total 66 [2022-11-18 01:50:57,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [867943651] [2022-11-18 01:50:57,117 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 01:50:57,117 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 66 states [2022-11-18 01:50:57,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:50:57,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2022-11-18 01:50:57,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1122, Invalid=3168, Unknown=0, NotChecked=0, Total=4290 [2022-11-18 01:50:57,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:50:57,119 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:50:57,119 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 66 states, 66 states have (on average 6.515151515151516) internal successors, (430), 66 states have internal predecessors, (430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:50:57,119 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:50:57,119 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:50:57,119 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:50:57,119 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:50:57,120 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:50:57,120 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-11-18 01:50:57,120 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2022-11-18 01:50:57,120 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:51:07,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:51:07,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:51:07,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:51:07,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:51:07,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:51:07,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-18 01:51:07,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-11-18 01:51:07,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2022-11-18 01:51:07,384 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (152)] Forceful destruction successful, exit code 0 [2022-11-18 01:51:07,571 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 152 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable281 [2022-11-18 01:51:07,571 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)] === [2022-11-18 01:51:07,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:51:07,572 INFO L85 PathProgramCache]: Analyzing trace with hash -1335148121, now seen corresponding path program 1 times [2022-11-18 01:51:07,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:51:07,572 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1897349051] [2022-11-18 01:51:07,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:51:07,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:51:07,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:51:10,564 INFO L134 CoverageAnalysis]: Checked inductivity of 4689 backedges. 0 proven. 4681 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 01:51:10,564 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:51:10,564 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1897349051] [2022-11-18 01:51:10,565 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1897349051] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 01:51:10,565 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [513612527] [2022-11-18 01:51:10,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:51:10,565 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:51:10,565 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 [2022-11-18 01:51:10,566 INFO L229 MonitoredProcess]: Starting monitored process 153 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 01:51:10,568 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (153)] Waiting until timeout for monitored process [2022-11-18 01:51:12,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:51:12,200 INFO L263 TraceCheckSpWp]: Trace formula consists of 1114 conjuncts, 64 conjunts are in the unsatisfiable core [2022-11-18 01:51:12,203 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 01:51:12,662 INFO L134 CoverageAnalysis]: Checked inductivity of 4689 backedges. 0 proven. 4681 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 01:51:12,663 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 01:51:17,065 INFO L134 CoverageAnalysis]: Checked inductivity of 4689 backedges. 0 proven. 4681 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 01:51:17,066 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [513612527] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 01:51:17,066 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 01:51:17,066 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [65, 65, 65] total 130 [2022-11-18 01:51:17,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [55069824] [2022-11-18 01:51:17,066 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 01:51:17,067 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 130 states [2022-11-18 01:51:17,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:51:17,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 130 interpolants. [2022-11-18 01:51:17,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4290, Invalid=12480, Unknown=0, NotChecked=0, Total=16770 [2022-11-18 01:51:17,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:51:17,071 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:51:17,071 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 130 states, 130 states have (on average 5.769230769230769) internal successors, (750), 130 states have internal predecessors, (750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:51:17,072 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:51:17,072 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:51:17,072 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:51:17,072 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:51:17,072 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:51:17,073 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-11-18 01:51:17,073 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2022-11-18 01:51:17,073 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 93 states. [2022-11-18 01:51:17,073 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:51:27,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:51:27,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:51:27,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:51:27,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:51:27,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:51:27,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-18 01:51:27,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-11-18 01:51:27,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2022-11-18 01:51:27,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 105 states. [2022-11-18 01:51:27,173 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (153)] Forceful destruction successful, exit code 0 [2022-11-18 01:51:27,362 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable282,153 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:51:27,362 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)] === [2022-11-18 01:51:27,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:51:27,362 INFO L85 PathProgramCache]: Analyzing trace with hash -809181816, now seen corresponding path program 1 times [2022-11-18 01:51:27,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:51:27,362 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [188858260] [2022-11-18 01:51:27,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:51:27,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:51:27,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 01:51:27,439 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 01:51:27,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 01:51:27,612 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 01:51:27,612 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-18 01:51:27,612 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 7 remaining) [2022-11-18 01:51:27,612 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 7 remaining) [2022-11-18 01:51:27,612 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 7 remaining) [2022-11-18 01:51:27,613 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 7 remaining) [2022-11-18 01:51:27,613 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 7 remaining) [2022-11-18 01:51:27,613 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (1 of 7 remaining) [2022-11-18 01:51:27,613 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK (0 of 7 remaining) [2022-11-18 01:51:27,613 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable283 [2022-11-18 01:51:27,617 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 01:51:27,618 WARN L233 ceAbstractionStarter]: 34 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-18 01:51:27,618 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 35 thread instances. [2022-11-18 01:51:27,715 INFO L144 ThreadInstanceAdder]: Constructed 35 joinOtherThreadTransitions. [2022-11-18 01:51:27,736 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 01:51:27,736 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-11-18 01:51:27,736 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 [2022-11-18 01:51:27,737 INFO L229 MonitoredProcess]: Starting monitored process 154 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-11-18 01:51:27,753 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-11-18 01:51:27,753 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2022-11-18 01:51:27,753 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;@38e98ff3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 01:51:27,753 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-11-18 01:51:27,773 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (154)] Waiting until timeout for monitored process [2022-11-18 01:51:27,792 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)] === [2022-11-18 01:51:27,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:51:27,792 INFO L85 PathProgramCache]: Analyzing trace with hash -1162539550, now seen corresponding path program 1 times [2022-11-18 01:51:27,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:51:27,792 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2038516919] [2022-11-18 01:51:27,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:51:27,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:51:27,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:51:27,829 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:51:27,830 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:51:27,830 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2038516919] [2022-11-18 01:51:27,830 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2038516919] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 01:51:27,830 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 01:51:27,830 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 01:51:27,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2122028633] [2022-11-18 01:51:27,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 01:51:27,831 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-18 01:51:27,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:51:27,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-18 01:51:27,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-18 01:51:27,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:51:27,832 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:51:27,832 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 27.5) internal successors, (55), 2 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:51:27,832 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:51:27,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:51:27,834 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable284 [2022-11-18 01:51:27,834 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)] === [2022-11-18 01:51:27,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:51:27,834 INFO L85 PathProgramCache]: Analyzing trace with hash 345012259, now seen corresponding path program 1 times [2022-11-18 01:51:27,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:51:27,835 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1817295786] [2022-11-18 01:51:27,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:51:27,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:51:27,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:51:27,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:51:27,883 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:51:27,883 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1817295786] [2022-11-18 01:51:27,883 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1817295786] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 01:51:27,884 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 01:51:27,884 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 01:51:27,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240005489] [2022-11-18 01:51:27,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 01:51:27,884 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 01:51:27,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:51:27,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 01:51:27,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 01:51:27,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:51:27,886 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:51:27,886 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:51:27,886 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:51:27,886 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:51:28,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:51:28,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:51:28,556 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable285 [2022-11-18 01:51:28,556 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)] === [2022-11-18 01:51:28,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:51:28,556 INFO L85 PathProgramCache]: Analyzing trace with hash -978137528, now seen corresponding path program 1 times [2022-11-18 01:51:28,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:51:28,557 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [742841607] [2022-11-18 01:51:28,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:51:28,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:51:28,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:51:28,610 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:51:28,610 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:51:28,610 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [742841607] [2022-11-18 01:51:28,610 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [742841607] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 01:51:28,610 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [417222488] [2022-11-18 01:51:28,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:51:28,610 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:51:28,611 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 [2022-11-18 01:51:28,614 INFO L229 MonitoredProcess]: Starting monitored process 155 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 01:51:28,615 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (155)] Waiting until timeout for monitored process [2022-11-18 01:51:30,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:51:30,142 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 01:51:30,143 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 01:51:30,164 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:51:30,164 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 01:51:30,194 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:51:30,194 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [417222488] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 01:51:30,194 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 01:51:30,194 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-11-18 01:51:30,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1036976339] [2022-11-18 01:51:30,194 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 01:51:30,194 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-18 01:51:30,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:51:30,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-18 01:51:30,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-18 01:51:30,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:51:30,196 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:51:30,196 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.7) internal successors, (87), 10 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:51:30,196 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:51:30,196 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:51:30,196 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:51:30,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:51:30,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:51:30,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:51:30,571 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (155)] Ended with exit code 0 [2022-11-18 01:51:30,759 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable286,155 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:51:30,759 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)] === [2022-11-18 01:51:30,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:51:30,760 INFO L85 PathProgramCache]: Analyzing trace with hash 2084634389, now seen corresponding path program 1 times [2022-11-18 01:51:30,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:51:30,760 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [645689347] [2022-11-18 01:51:30,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:51:30,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:51:30,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:51:30,836 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-18 01:51:30,836 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:51:30,837 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [645689347] [2022-11-18 01:51:30,837 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [645689347] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 01:51:30,837 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 01:51:30,837 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 01:51:30,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892755719] [2022-11-18 01:51:30,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 01:51:30,837 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 01:51:30,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:51:30,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 01:51:30,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 01:51:30,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:51:30,838 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:51:30,838 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:51:30,838 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:51:30,839 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:51:30,839 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:51:30,839 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:51:31,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:51:31,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:51:31,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:51:31,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 01:51:31,197 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable287 [2022-11-18 01:51:31,197 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)] === [2022-11-18 01:51:31,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:51:31,197 INFO L85 PathProgramCache]: Analyzing trace with hash -405763042, now seen corresponding path program 1 times [2022-11-18 01:51:31,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:51:31,197 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1857280872] [2022-11-18 01:51:31,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:51:31,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:51:31,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:51:31,244 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-18 01:51:31,245 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:51:31,245 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1857280872] [2022-11-18 01:51:31,245 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1857280872] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 01:51:31,245 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 01:51:31,245 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 01:51:31,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261978406] [2022-11-18 01:51:31,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 01:51:31,245 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 01:51:31,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:51:31,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 01:51:31,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 01:51:31,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:51:31,246 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:51:31,247 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:51:31,247 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:51:31,247 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:51:31,247 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:51:31,247 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-11-18 01:51:31,247 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:51:31,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:51:31,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:51:31,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:51:31,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:51:31,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:51:31,855 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable288 [2022-11-18 01:51:31,856 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)] === [2022-11-18 01:51:31,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:51:31,856 INFO L85 PathProgramCache]: Analyzing trace with hash 669630039, now seen corresponding path program 1 times [2022-11-18 01:51:31,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:51:31,856 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [844544516] [2022-11-18 01:51:31,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:51:31,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:51:31,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:51:31,939 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-18 01:51:31,939 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:51:31,939 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [844544516] [2022-11-18 01:51:31,939 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [844544516] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 01:51:31,939 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1749837761] [2022-11-18 01:51:31,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:51:31,940 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:51:31,940 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 [2022-11-18 01:51:31,941 INFO L229 MonitoredProcess]: Starting monitored process 156 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 01:51:31,945 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (156)] Waiting until timeout for monitored process [2022-11-18 01:51:33,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:51:33,481 INFO L263 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-18 01:51:33,482 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 01:51:33,558 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 01:51:33,559 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 01:51:33,669 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 01:51:33,669 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1749837761] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 01:51:33,669 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 01:51:33,670 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 9, 9] total 19 [2022-11-18 01:51:33,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019542332] [2022-11-18 01:51:33,670 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 01:51:33,670 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-18 01:51:33,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:51:33,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-18 01:51:33,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=263, Unknown=0, NotChecked=0, Total=342 [2022-11-18 01:51:33,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:51:33,672 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:51:33,672 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 11.631578947368421) internal successors, (221), 19 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:51:33,673 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:51:33,673 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:51:33,673 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:51:33,673 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:51:33,673 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:51:33,673 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:51:34,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:51:34,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:51:34,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:51:34,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:51:34,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:51:34,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-18 01:51:34,800 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (156)] Forceful destruction successful, exit code 0 [2022-11-18 01:51:34,988 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 156 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable289 [2022-11-18 01:51:34,988 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)] === [2022-11-18 01:51:34,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:51:34,988 INFO L85 PathProgramCache]: Analyzing trace with hash 950249591, now seen corresponding path program 1 times [2022-11-18 01:51:34,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:51:34,989 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [98602351] [2022-11-18 01:51:34,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:51:34,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:51:35,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:51:35,278 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 217 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 01:51:35,278 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:51:35,278 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [98602351] [2022-11-18 01:51:35,278 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [98602351] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 01:51:35,278 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [189079491] [2022-11-18 01:51:35,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:51:35,279 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:51:35,279 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 [2022-11-18 01:51:35,280 INFO L229 MonitoredProcess]: Starting monitored process 157 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 01:51:35,282 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (157)] Waiting until timeout for monitored process [2022-11-18 01:51:36,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:51:36,843 INFO L263 TraceCheckSpWp]: Trace formula consists of 490 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-18 01:51:36,844 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 01:51:36,944 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 217 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 01:51:36,944 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 01:51:37,260 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 217 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 01:51:37,261 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [189079491] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 01:51:37,261 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 01:51:37,261 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 34 [2022-11-18 01:51:37,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099323235] [2022-11-18 01:51:37,261 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 01:51:37,262 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-11-18 01:51:37,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:51:37,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-11-18 01:51:37,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2022-11-18 01:51:37,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:51:37,263 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:51:37,263 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 7.9411764705882355) internal successors, (270), 34 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:51:37,263 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:51:37,263 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:51:37,263 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:51:37,263 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:51:37,264 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:51:37,264 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-11-18 01:51:37,264 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:51:39,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:51:39,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:51:39,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:51:39,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:51:39,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:51:39,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-18 01:51:39,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-11-18 01:51:39,871 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (157)] Ended with exit code 0 [2022-11-18 01:51:40,061 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable290,157 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:51:40,061 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)] === [2022-11-18 01:51:40,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:51:40,061 INFO L85 PathProgramCache]: Analyzing trace with hash 1741616091, now seen corresponding path program 1 times [2022-11-18 01:51:40,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:51:40,061 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2070093450] [2022-11-18 01:51:40,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:51:40,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:51:40,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:51:40,840 INFO L134 CoverageAnalysis]: Checked inductivity of 1073 backedges. 0 proven. 1065 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 01:51:40,840 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:51:40,840 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2070093450] [2022-11-18 01:51:40,840 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2070093450] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 01:51:40,840 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1011869801] [2022-11-18 01:51:40,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:51:40,840 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:51:40,841 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 [2022-11-18 01:51:40,842 INFO L229 MonitoredProcess]: Starting monitored process 158 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 01:51:40,844 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (158)] Waiting until timeout for monitored process [2022-11-18 01:51:42,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:51:42,444 INFO L263 TraceCheckSpWp]: Trace formula consists of 698 conjuncts, 32 conjunts are in the unsatisfiable core [2022-11-18 01:51:42,447 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 01:51:42,644 INFO L134 CoverageAnalysis]: Checked inductivity of 1073 backedges. 0 proven. 1065 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 01:51:42,645 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 01:51:43,686 INFO L134 CoverageAnalysis]: Checked inductivity of 1073 backedges. 0 proven. 1065 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 01:51:43,686 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1011869801] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 01:51:43,687 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 01:51:43,687 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33, 33] total 66 [2022-11-18 01:51:43,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [433576210] [2022-11-18 01:51:43,687 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 01:51:43,688 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 66 states [2022-11-18 01:51:43,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:51:43,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2022-11-18 01:51:43,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1122, Invalid=3168, Unknown=0, NotChecked=0, Total=4290 [2022-11-18 01:51:43,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:51:43,691 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:51:43,691 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 66 states, 66 states have (on average 6.515151515151516) internal successors, (430), 66 states have internal predecessors, (430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:51:43,691 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:51:43,691 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:51:43,692 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:51:43,692 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:51:43,692 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:51:43,692 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-11-18 01:51:43,692 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2022-11-18 01:51:43,692 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:51:52,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:51:52,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:51:52,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:51:52,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:51:52,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:51:52,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-18 01:51:52,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-11-18 01:51:52,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2022-11-18 01:51:52,507 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (158)] Ended with exit code 0 [2022-11-18 01:51:52,695 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable291,158 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:51:52,695 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)] === [2022-11-18 01:51:52,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:51:52,696 INFO L85 PathProgramCache]: Analyzing trace with hash 1447455523, now seen corresponding path program 1 times [2022-11-18 01:51:52,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:51:52,696 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [734970550] [2022-11-18 01:51:52,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:51:52,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:51:52,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:51:55,997 INFO L134 CoverageAnalysis]: Checked inductivity of 4689 backedges. 0 proven. 4681 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 01:51:55,997 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:51:55,997 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [734970550] [2022-11-18 01:51:55,998 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [734970550] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 01:51:55,998 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [167570823] [2022-11-18 01:51:55,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:51:55,998 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:51:55,998 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 [2022-11-18 01:51:55,999 INFO L229 MonitoredProcess]: Starting monitored process 159 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 01:51:56,001 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (159)] Waiting until timeout for monitored process [2022-11-18 01:51:57,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:51:57,797 INFO L263 TraceCheckSpWp]: Trace formula consists of 1114 conjuncts, 64 conjunts are in the unsatisfiable core [2022-11-18 01:51:57,801 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 01:51:58,285 INFO L134 CoverageAnalysis]: Checked inductivity of 4689 backedges. 0 proven. 4681 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 01:51:58,285 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 01:52:02,279 INFO L134 CoverageAnalysis]: Checked inductivity of 4689 backedges. 0 proven. 4681 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 01:52:02,279 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [167570823] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 01:52:02,279 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 01:52:02,280 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [65, 65, 65] total 130 [2022-11-18 01:52:02,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [260390715] [2022-11-18 01:52:02,280 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 01:52:02,280 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 130 states [2022-11-18 01:52:02,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:52:02,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 130 interpolants. [2022-11-18 01:52:02,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4290, Invalid=12480, Unknown=0, NotChecked=0, Total=16770 [2022-11-18 01:52:02,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:52:02,284 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:52:02,285 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 130 states, 130 states have (on average 5.769230769230769) internal successors, (750), 130 states have internal predecessors, (750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:52:02,285 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:52:02,285 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:52:02,285 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:52:02,285 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:52:02,285 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:52:02,285 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-11-18 01:52:02,285 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2022-11-18 01:52:02,286 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 93 states. [2022-11-18 01:52:02,286 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:52:12,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:52:12,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:52:12,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:52:12,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:52:12,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:52:12,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-18 01:52:12,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-11-18 01:52:12,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2022-11-18 01:52:12,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 108 states. [2022-11-18 01:52:12,966 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (159)] Forceful destruction successful, exit code 0 [2022-11-18 01:52:13,153 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 159 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable292 [2022-11-18 01:52:13,153 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)] === [2022-11-18 01:52:13,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:52:13,154 INFO L85 PathProgramCache]: Analyzing trace with hash -576353797, now seen corresponding path program 1 times [2022-11-18 01:52:13,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:52:13,154 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1469172859] [2022-11-18 01:52:13,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:52:13,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:52:13,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 01:52:13,239 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 01:52:13,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 01:52:13,379 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 01:52:13,379 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-18 01:52:13,379 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 7 remaining) [2022-11-18 01:52:13,379 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 7 remaining) [2022-11-18 01:52:13,380 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 7 remaining) [2022-11-18 01:52:13,380 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 7 remaining) [2022-11-18 01:52:13,380 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 7 remaining) [2022-11-18 01:52:13,380 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (1 of 7 remaining) [2022-11-18 01:52:13,380 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK (0 of 7 remaining) [2022-11-18 01:52:13,380 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable293 [2022-11-18 01:52:13,384 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 01:52:13,384 WARN L233 ceAbstractionStarter]: 35 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-18 01:52:13,384 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 36 thread instances. [2022-11-18 01:52:13,499 INFO L144 ThreadInstanceAdder]: Constructed 36 joinOtherThreadTransitions. [2022-11-18 01:52:13,509 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 01:52:13,509 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-11-18 01:52:13,509 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 [2022-11-18 01:52:13,511 INFO L229 MonitoredProcess]: Starting monitored process 160 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-11-18 01:52:13,527 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (160)] Waiting until timeout for monitored process [2022-11-18 01:52:13,530 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-11-18 01:52:13,530 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2022-11-18 01:52:13,530 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;@38e98ff3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 01:52:13,530 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-11-18 01:52:13,569 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)] === [2022-11-18 01:52:13,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:52:13,570 INFO L85 PathProgramCache]: Analyzing trace with hash -70248838, now seen corresponding path program 1 times [2022-11-18 01:52:13,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:52:13,570 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1684371300] [2022-11-18 01:52:13,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:52:13,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:52:13,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:52:13,604 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:52:13,604 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:52:13,604 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1684371300] [2022-11-18 01:52:13,605 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1684371300] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 01:52:13,605 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 01:52:13,605 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 01:52:13,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612507070] [2022-11-18 01:52:13,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 01:52:13,605 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-18 01:52:13,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:52:13,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-18 01:52:13,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-18 01:52:13,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:52:13,606 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:52:13,606 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 27.5) internal successors, (55), 2 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:52:13,606 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:52:13,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:52:13,607 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable294 [2022-11-18 01:52:13,607 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)] === [2022-11-18 01:52:13,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:52:13,608 INFO L85 PathProgramCache]: Analyzing trace with hash 1437302971, now seen corresponding path program 1 times [2022-11-18 01:52:13,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:52:13,608 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [409986644] [2022-11-18 01:52:13,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:52:13,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:52:13,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:52:13,649 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:52:13,649 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:52:13,649 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [409986644] [2022-11-18 01:52:13,650 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [409986644] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 01:52:13,650 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 01:52:13,650 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 01:52:13,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491273984] [2022-11-18 01:52:13,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 01:52:13,650 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 01:52:13,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:52:13,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 01:52:13,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 01:52:13,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:52:13,651 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:52:13,651 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:52:13,651 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:52:13,652 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:52:14,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:52:14,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:52:14,244 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable295 [2022-11-18 01:52:14,244 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)] === [2022-11-18 01:52:14,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:52:14,245 INFO L85 PathProgramCache]: Analyzing trace with hash -1543024132, now seen corresponding path program 1 times [2022-11-18 01:52:14,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:52:14,245 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1361107912] [2022-11-18 01:52:14,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:52:14,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:52:14,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:52:14,303 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:52:14,304 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:52:14,304 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1361107912] [2022-11-18 01:52:14,304 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1361107912] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 01:52:14,304 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1889512694] [2022-11-18 01:52:14,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:52:14,304 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:52:14,304 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 [2022-11-18 01:52:14,306 INFO L229 MonitoredProcess]: Starting monitored process 161 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 01:52:14,308 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (161)] Waiting until timeout for monitored process [2022-11-18 01:52:16,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:52:16,028 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 01:52:16,029 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 01:52:16,053 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:52:16,053 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 01:52:16,087 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:52:16,087 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1889512694] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 01:52:16,087 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 01:52:16,087 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-11-18 01:52:16,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1322729127] [2022-11-18 01:52:16,087 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 01:52:16,088 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-18 01:52:16,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:52:16,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-18 01:52:16,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-18 01:52:16,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:52:16,089 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:52:16,089 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.7) internal successors, (87), 10 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:52:16,089 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:52:16,089 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:52:16,089 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:52:16,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:52:16,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:52:16,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:52:16,503 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (161)] Forceful destruction successful, exit code 0 [2022-11-18 01:52:16,691 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable296,161 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:52:16,691 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)] === [2022-11-18 01:52:16,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:52:16,692 INFO L85 PathProgramCache]: Analyzing trace with hash 1423810561, now seen corresponding path program 1 times [2022-11-18 01:52:16,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:52:16,692 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1436401753] [2022-11-18 01:52:16,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:52:16,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:52:16,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:52:16,776 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-18 01:52:16,776 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:52:16,776 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1436401753] [2022-11-18 01:52:16,776 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1436401753] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 01:52:16,776 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 01:52:16,776 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 01:52:16,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1344987841] [2022-11-18 01:52:16,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 01:52:16,777 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 01:52:16,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:52:16,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 01:52:16,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 01:52:16,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:52:16,778 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:52:16,778 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:52:16,778 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:52:16,778 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:52:16,778 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:52:16,778 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:52:17,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:52:17,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:52:17,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:52:17,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 01:52:17,239 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable297 [2022-11-18 01:52:17,240 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)] === [2022-11-18 01:52:17,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:52:17,240 INFO L85 PathProgramCache]: Analyzing trace with hash 2076559946, now seen corresponding path program 1 times [2022-11-18 01:52:17,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:52:17,240 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [669109263] [2022-11-18 01:52:17,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:52:17,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:52:17,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:52:17,300 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-18 01:52:17,300 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:52:17,300 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [669109263] [2022-11-18 01:52:17,300 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [669109263] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 01:52:17,301 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 01:52:17,301 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 01:52:17,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1823551647] [2022-11-18 01:52:17,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 01:52:17,301 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 01:52:17,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:52:17,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 01:52:17,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 01:52:17,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:52:17,302 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:52:17,302 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:52:17,302 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:52:17,303 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:52:17,303 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:52:17,303 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-11-18 01:52:17,303 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:52:17,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:52:17,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:52:17,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:52:17,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:52:17,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:52:17,899 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable298 [2022-11-18 01:52:17,899 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)] === [2022-11-18 01:52:17,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:52:17,900 INFO L85 PathProgramCache]: Analyzing trace with hash 617329606, now seen corresponding path program 1 times [2022-11-18 01:52:17,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:52:17,900 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2079988879] [2022-11-18 01:52:17,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:52:17,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:52:17,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:52:18,016 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-18 01:52:18,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:52:18,016 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2079988879] [2022-11-18 01:52:18,017 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2079988879] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 01:52:18,017 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1955975510] [2022-11-18 01:52:18,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:52:18,017 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:52:18,017 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 [2022-11-18 01:52:18,019 INFO L229 MonitoredProcess]: Starting monitored process 162 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 01:52:18,043 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (162)] Waiting until timeout for monitored process [2022-11-18 01:52:19,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:52:19,882 INFO L263 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-18 01:52:19,883 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 01:52:19,977 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 01:52:19,977 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 01:52:20,099 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 01:52:20,099 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1955975510] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 01:52:20,100 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 01:52:20,100 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 9, 9] total 19 [2022-11-18 01:52:20,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462482954] [2022-11-18 01:52:20,100 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 01:52:20,100 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-18 01:52:20,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:52:20,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-18 01:52:20,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=263, Unknown=0, NotChecked=0, Total=342 [2022-11-18 01:52:20,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:52:20,102 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:52:20,102 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 11.631578947368421) internal successors, (221), 19 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:52:20,102 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:52:20,102 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:52:20,102 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:52:20,102 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:52:20,102 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:52:20,102 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:52:21,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:52:21,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:52:21,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:52:21,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:52:21,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:52:21,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-18 01:52:21,175 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (162)] Ended with exit code 0 [2022-11-18 01:52:21,357 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 162 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable299 [2022-11-18 01:52:21,358 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)] === [2022-11-18 01:52:21,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:52:21,358 INFO L85 PathProgramCache]: Analyzing trace with hash 1712376339, now seen corresponding path program 1 times [2022-11-18 01:52:21,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:52:21,358 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1868058189] [2022-11-18 01:52:21,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:52:21,358 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:52:21,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:52:21,730 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 217 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 01:52:21,730 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:52:21,730 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1868058189] [2022-11-18 01:52:21,730 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1868058189] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 01:52:21,731 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [943268146] [2022-11-18 01:52:21,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:52:21,731 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:52:21,731 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 [2022-11-18 01:52:21,732 INFO L229 MonitoredProcess]: Starting monitored process 163 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 01:52:21,734 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (163)] Waiting until timeout for monitored process [2022-11-18 01:52:23,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:52:23,426 INFO L263 TraceCheckSpWp]: Trace formula consists of 490 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-18 01:52:23,428 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 01:52:23,539 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 217 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 01:52:23,539 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 01:52:23,861 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 217 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 01:52:23,862 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [943268146] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 01:52:23,862 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 01:52:23,862 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 34 [2022-11-18 01:52:23,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156911072] [2022-11-18 01:52:23,862 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 01:52:23,863 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-11-18 01:52:23,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:52:23,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-11-18 01:52:23,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2022-11-18 01:52:23,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:52:23,864 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:52:23,864 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 7.9411764705882355) internal successors, (270), 34 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:52:23,864 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:52:23,864 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:52:23,864 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:52:23,865 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:52:23,865 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:52:23,865 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-11-18 01:52:23,865 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:52:26,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:52:26,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:52:26,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:52:26,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:52:26,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:52:26,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-18 01:52:26,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-11-18 01:52:26,341 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (163)] Forceful destruction successful, exit code 0 [2022-11-18 01:52:26,528 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 163 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable300 [2022-11-18 01:52:26,529 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)] === [2022-11-18 01:52:26,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:52:26,529 INFO L85 PathProgramCache]: Analyzing trace with hash 687661591, now seen corresponding path program 1 times [2022-11-18 01:52:26,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:52:26,529 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [852393195] [2022-11-18 01:52:26,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:52:26,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:52:26,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:52:27,343 INFO L134 CoverageAnalysis]: Checked inductivity of 1073 backedges. 0 proven. 1065 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 01:52:27,343 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:52:27,343 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [852393195] [2022-11-18 01:52:27,343 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [852393195] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 01:52:27,343 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1747350721] [2022-11-18 01:52:27,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:52:27,344 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:52:27,344 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 [2022-11-18 01:52:27,345 INFO L229 MonitoredProcess]: Starting monitored process 164 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 01:52:27,347 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (164)] Waiting until timeout for monitored process [2022-11-18 01:52:29,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:52:29,087 INFO L263 TraceCheckSpWp]: Trace formula consists of 698 conjuncts, 32 conjunts are in the unsatisfiable core [2022-11-18 01:52:29,090 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 01:52:29,333 INFO L134 CoverageAnalysis]: Checked inductivity of 1073 backedges. 0 proven. 1065 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 01:52:29,334 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 01:52:30,423 INFO L134 CoverageAnalysis]: Checked inductivity of 1073 backedges. 0 proven. 1065 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 01:52:30,423 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1747350721] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 01:52:30,423 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 01:52:30,424 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33, 33] total 66 [2022-11-18 01:52:30,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228656978] [2022-11-18 01:52:30,424 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 01:52:30,424 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 66 states [2022-11-18 01:52:30,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:52:30,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2022-11-18 01:52:30,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1122, Invalid=3168, Unknown=0, NotChecked=0, Total=4290 [2022-11-18 01:52:30,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:52:30,426 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:52:30,426 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 66 states, 66 states have (on average 6.515151515151516) internal successors, (430), 66 states have internal predecessors, (430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:52:30,426 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:52:30,426 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:52:30,426 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:52:30,426 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:52:30,426 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:52:30,426 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-11-18 01:52:30,427 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2022-11-18 01:52:30,427 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:52:38,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:52:38,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:52:38,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:52:38,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:52:38,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:52:38,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-18 01:52:38,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-11-18 01:52:38,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2022-11-18 01:52:38,438 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (164)] Ended with exit code 0 [2022-11-18 01:52:38,627 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 164 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable301 [2022-11-18 01:52:38,627 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)] === [2022-11-18 01:52:38,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:52:38,627 INFO L85 PathProgramCache]: Analyzing trace with hash 1957328799, now seen corresponding path program 1 times [2022-11-18 01:52:38,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:52:38,628 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1930721243] [2022-11-18 01:52:38,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:52:38,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:52:38,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:52:41,475 INFO L134 CoverageAnalysis]: Checked inductivity of 4689 backedges. 0 proven. 4681 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 01:52:41,476 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:52:41,476 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1930721243] [2022-11-18 01:52:41,476 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1930721243] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 01:52:41,476 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [267739652] [2022-11-18 01:52:41,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:52:41,476 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:52:41,477 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 [2022-11-18 01:52:41,477 INFO L229 MonitoredProcess]: Starting monitored process 165 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 01:52:41,480 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (165)] Waiting until timeout for monitored process [2022-11-18 01:52:43,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:52:43,261 INFO L263 TraceCheckSpWp]: Trace formula consists of 1114 conjuncts, 64 conjunts are in the unsatisfiable core [2022-11-18 01:52:43,265 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 01:52:43,697 INFO L134 CoverageAnalysis]: Checked inductivity of 4689 backedges. 0 proven. 4681 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 01:52:43,697 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 01:52:47,547 INFO L134 CoverageAnalysis]: Checked inductivity of 4689 backedges. 0 proven. 4681 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 01:52:47,547 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [267739652] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 01:52:47,548 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 01:52:47,548 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [65, 65, 65] total 130 [2022-11-18 01:52:47,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [70465593] [2022-11-18 01:52:47,548 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 01:52:47,549 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 130 states [2022-11-18 01:52:47,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:52:47,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 130 interpolants. [2022-11-18 01:52:47,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4290, Invalid=12480, Unknown=0, NotChecked=0, Total=16770 [2022-11-18 01:52:47,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:52:47,553 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:52:47,553 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 130 states, 130 states have (on average 5.769230769230769) internal successors, (750), 130 states have internal predecessors, (750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:52:47,554 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:52:47,554 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:52:47,554 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:52:47,554 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:52:47,554 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:52:47,554 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-11-18 01:52:47,554 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2022-11-18 01:52:47,555 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 93 states. [2022-11-18 01:52:47,555 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:52:58,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:52:58,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:52:58,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:52:58,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:52:58,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:52:58,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-18 01:52:58,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-11-18 01:52:58,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2022-11-18 01:52:58,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 111 states. [2022-11-18 01:52:58,280 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (165)] Forceful destruction successful, exit code 0 [2022-11-18 01:52:58,469 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 165 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable302 [2022-11-18 01:52:58,469 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)] === [2022-11-18 01:52:58,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:52:58,469 INFO L85 PathProgramCache]: Analyzing trace with hash 1595660775, now seen corresponding path program 1 times [2022-11-18 01:52:58,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:52:58,469 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [952668101] [2022-11-18 01:52:58,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:52:58,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:52:58,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 01:52:58,544 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 01:52:58,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 01:52:58,669 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 01:52:58,669 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-18 01:52:58,670 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 7 remaining) [2022-11-18 01:52:58,670 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 7 remaining) [2022-11-18 01:52:58,670 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 7 remaining) [2022-11-18 01:52:58,670 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 7 remaining) [2022-11-18 01:52:58,670 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 7 remaining) [2022-11-18 01:52:58,670 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (1 of 7 remaining) [2022-11-18 01:52:58,670 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK (0 of 7 remaining) [2022-11-18 01:52:58,670 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable303 [2022-11-18 01:52:58,674 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 01:52:58,674 WARN L233 ceAbstractionStarter]: 36 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-18 01:52:58,674 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 37 thread instances. [2022-11-18 01:52:58,791 INFO L144 ThreadInstanceAdder]: Constructed 37 joinOtherThreadTransitions. [2022-11-18 01:52:58,798 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 01:52:58,798 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-11-18 01:52:58,798 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 [2022-11-18 01:52:58,799 INFO L229 MonitoredProcess]: Starting monitored process 166 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-11-18 01:52:58,806 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (166)] Waiting until timeout for monitored process [2022-11-18 01:52:58,808 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-11-18 01:52:58,808 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2022-11-18 01:52:58,809 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;@38e98ff3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 01:52:58,809 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-11-18 01:52:58,830 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)] === [2022-11-18 01:52:58,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:52:58,831 INFO L85 PathProgramCache]: Analyzing trace with hash 1638090578, now seen corresponding path program 1 times [2022-11-18 01:52:58,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:52:58,831 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1831308027] [2022-11-18 01:52:58,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:52:58,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:52:58,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:52:58,858 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:52:58,858 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:52:58,858 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1831308027] [2022-11-18 01:52:58,859 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1831308027] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 01:52:58,859 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 01:52:58,859 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 01:52:58,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553826129] [2022-11-18 01:52:58,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 01:52:58,859 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-18 01:52:58,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:52:58,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-18 01:52:58,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-18 01:52:58,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:52:58,860 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:52:58,860 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 27.5) internal successors, (55), 2 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:52:58,860 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:52:58,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:52:58,861 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable304 [2022-11-18 01:52:58,862 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)] === [2022-11-18 01:52:58,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:52:58,862 INFO L85 PathProgramCache]: Analyzing trace with hash -1149324909, now seen corresponding path program 1 times [2022-11-18 01:52:58,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:52:58,862 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [699033514] [2022-11-18 01:52:58,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:52:58,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:52:58,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:52:58,901 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:52:58,901 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:52:58,901 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [699033514] [2022-11-18 01:52:58,901 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [699033514] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 01:52:58,901 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 01:52:58,901 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 01:52:58,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [421820363] [2022-11-18 01:52:58,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 01:52:58,902 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 01:52:58,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:52:58,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 01:52:58,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 01:52:58,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:52:58,903 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:52:58,903 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:52:58,903 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:52:58,903 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:52:59,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:52:59,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:52:59,461 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable305 [2022-11-18 01:52:59,461 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)] === [2022-11-18 01:52:59,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:52:59,462 INFO L85 PathProgramCache]: Analyzing trace with hash -598026768, now seen corresponding path program 1 times [2022-11-18 01:52:59,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:52:59,462 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1761444739] [2022-11-18 01:52:59,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:52:59,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:52:59,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:52:59,510 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:52:59,510 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:52:59,510 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1761444739] [2022-11-18 01:52:59,510 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1761444739] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 01:52:59,511 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [940417386] [2022-11-18 01:52:59,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:52:59,511 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:52:59,511 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 [2022-11-18 01:52:59,514 INFO L229 MonitoredProcess]: Starting monitored process 167 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 01:52:59,514 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (167)] Waiting until timeout for monitored process [2022-11-18 01:53:01,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:53:01,138 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 01:53:01,139 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 01:53:01,160 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:53:01,160 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 01:53:01,189 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:53:01,189 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [940417386] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 01:53:01,189 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 01:53:01,189 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-11-18 01:53:01,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [856801173] [2022-11-18 01:53:01,190 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 01:53:01,190 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-18 01:53:01,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:53:01,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-18 01:53:01,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-18 01:53:01,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:53:01,191 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:53:01,191 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.7) internal successors, (87), 10 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:53:01,191 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:53:01,191 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:53:01,191 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:53:01,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:53:01,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:53:01,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:53:01,571 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (167)] Forceful destruction successful, exit code 0 [2022-11-18 01:53:01,759 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable306,167 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:53:01,760 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)] === [2022-11-18 01:53:01,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:53:01,760 INFO L85 PathProgramCache]: Analyzing trace with hash 964489517, now seen corresponding path program 1 times [2022-11-18 01:53:01,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:53:01,760 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1514865614] [2022-11-18 01:53:01,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:53:01,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:53:01,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:53:01,831 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-18 01:53:01,831 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:53:01,831 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1514865614] [2022-11-18 01:53:01,831 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1514865614] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 01:53:01,831 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 01:53:01,831 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 01:53:01,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [129822940] [2022-11-18 01:53:01,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 01:53:01,832 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 01:53:01,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:53:01,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 01:53:01,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 01:53:01,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:53:01,833 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:53:01,833 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:53:01,833 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:53:01,833 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:53:01,833 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:53:01,833 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:53:02,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:53:02,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:53:02,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:53:02,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 01:53:02,261 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable307 [2022-11-18 01:53:02,261 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)] === [2022-11-18 01:53:02,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:53:02,261 INFO L85 PathProgramCache]: Analyzing trace with hash -605255562, now seen corresponding path program 1 times [2022-11-18 01:53:02,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:53:02,262 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431333445] [2022-11-18 01:53:02,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:53:02,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:53:02,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:53:02,309 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-18 01:53:02,309 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:53:02,309 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [431333445] [2022-11-18 01:53:02,310 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [431333445] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 01:53:02,310 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 01:53:02,310 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 01:53:02,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [607293404] [2022-11-18 01:53:02,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 01:53:02,310 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 01:53:02,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:53:02,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 01:53:02,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 01:53:02,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:53:02,311 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:53:02,311 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:53:02,311 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:53:02,311 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:53:02,311 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:53:02,311 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-11-18 01:53:02,312 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:53:02,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:53:02,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:53:02,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:53:02,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:53:02,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:53:02,819 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable308 [2022-11-18 01:53:02,819 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)] === [2022-11-18 01:53:02,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:53:02,819 INFO L85 PathProgramCache]: Analyzing trace with hash 743776885, now seen corresponding path program 1 times [2022-11-18 01:53:02,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:53:02,819 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [410401414] [2022-11-18 01:53:02,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:53:02,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:53:02,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:53:02,895 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-18 01:53:02,895 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:53:02,895 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [410401414] [2022-11-18 01:53:02,895 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [410401414] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 01:53:02,896 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1757544712] [2022-11-18 01:53:02,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:53:02,896 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:53:02,896 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 [2022-11-18 01:53:02,897 INFO L229 MonitoredProcess]: Starting monitored process 168 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 01:53:02,899 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (168)] Waiting until timeout for monitored process [2022-11-18 01:53:04,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:53:04,562 INFO L263 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-18 01:53:04,563 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 01:53:04,639 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 01:53:04,639 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 01:53:04,744 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 01:53:04,745 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1757544712] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 01:53:04,745 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 01:53:04,745 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 9, 9] total 19 [2022-11-18 01:53:04,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925369436] [2022-11-18 01:53:04,745 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 01:53:04,745 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-18 01:53:04,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:53:04,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-18 01:53:04,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=263, Unknown=0, NotChecked=0, Total=342 [2022-11-18 01:53:04,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:53:04,747 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:53:04,747 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 11.631578947368421) internal successors, (221), 19 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:53:04,747 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:53:04,747 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:53:04,747 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:53:04,747 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:53:04,747 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:53:04,747 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:53:05,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:53:05,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:53:05,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:53:05,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:53:05,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:53:05,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-18 01:53:05,771 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (168)] Forceful destruction successful, exit code 0 [2022-11-18 01:53:05,960 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 168 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable309 [2022-11-18 01:53:05,960 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)] === [2022-11-18 01:53:05,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:53:05,960 INFO L85 PathProgramCache]: Analyzing trace with hash 1087639855, now seen corresponding path program 1 times [2022-11-18 01:53:05,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:53:05,961 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [447749057] [2022-11-18 01:53:05,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:53:05,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:53:06,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:53:06,227 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 217 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 01:53:06,227 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:53:06,228 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [447749057] [2022-11-18 01:53:06,228 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [447749057] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 01:53:06,228 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [389430785] [2022-11-18 01:53:06,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:53:06,228 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:53:06,229 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 [2022-11-18 01:53:06,240 INFO L229 MonitoredProcess]: Starting monitored process 169 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 01:53:06,263 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (169)] Waiting until timeout for monitored process [2022-11-18 01:53:07,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:53:07,969 INFO L263 TraceCheckSpWp]: Trace formula consists of 490 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-18 01:53:07,971 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 01:53:08,068 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 217 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 01:53:08,068 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 01:53:08,361 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 217 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 01:53:08,362 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [389430785] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 01:53:08,362 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 01:53:08,362 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 34 [2022-11-18 01:53:08,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306375965] [2022-11-18 01:53:08,362 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 01:53:08,363 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-11-18 01:53:08,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:53:08,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-11-18 01:53:08,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2022-11-18 01:53:08,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:53:08,365 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:53:08,365 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 7.9411764705882355) internal successors, (270), 34 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:53:08,365 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:53:08,365 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:53:08,365 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:53:08,365 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:53:08,366 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:53:08,366 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-11-18 01:53:08,366 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:53:11,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:53:11,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:53:11,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:53:11,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:53:11,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:53:11,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-18 01:53:11,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-11-18 01:53:11,138 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (169)] Ended with exit code 0 [2022-11-18 01:53:11,327 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 169 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable310 [2022-11-18 01:53:11,328 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)] === [2022-11-18 01:53:11,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:53:11,328 INFO L85 PathProgramCache]: Analyzing trace with hash -676748077, now seen corresponding path program 1 times [2022-11-18 01:53:11,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:53:11,328 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [632915153] [2022-11-18 01:53:11,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:53:11,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:53:11,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:53:12,107 INFO L134 CoverageAnalysis]: Checked inductivity of 1073 backedges. 0 proven. 1065 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 01:53:12,107 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:53:12,107 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [632915153] [2022-11-18 01:53:12,107 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [632915153] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 01:53:12,107 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [239432704] [2022-11-18 01:53:12,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:53:12,108 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:53:12,108 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 [2022-11-18 01:53:12,109 INFO L229 MonitoredProcess]: Starting monitored process 170 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 01:53:12,111 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (170)] Waiting until timeout for monitored process [2022-11-18 01:53:13,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:53:13,852 INFO L263 TraceCheckSpWp]: Trace formula consists of 698 conjuncts, 32 conjunts are in the unsatisfiable core [2022-11-18 01:53:13,854 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 01:53:14,047 INFO L134 CoverageAnalysis]: Checked inductivity of 1073 backedges. 0 proven. 1065 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 01:53:14,047 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 01:53:15,042 INFO L134 CoverageAnalysis]: Checked inductivity of 1073 backedges. 0 proven. 1065 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 01:53:15,042 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [239432704] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 01:53:15,042 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 01:53:15,042 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33, 33] total 66 [2022-11-18 01:53:15,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1566024000] [2022-11-18 01:53:15,042 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 01:53:15,043 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 66 states [2022-11-18 01:53:15,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:53:15,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2022-11-18 01:53:15,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1122, Invalid=3168, Unknown=0, NotChecked=0, Total=4290 [2022-11-18 01:53:15,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:53:15,044 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:53:15,045 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 66 states, 66 states have (on average 6.515151515151516) internal successors, (430), 66 states have internal predecessors, (430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:53:15,045 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:53:15,045 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:53:15,045 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:53:15,045 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:53:15,045 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:53:15,045 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-11-18 01:53:15,045 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2022-11-18 01:53:15,045 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:53:25,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:53:25,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:53:25,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:53:25,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:53:25,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:53:25,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-18 01:53:25,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-11-18 01:53:25,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2022-11-18 01:53:25,606 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (170)] Forceful destruction successful, exit code 0 [2022-11-18 01:53:25,794 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 170 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable311 [2022-11-18 01:53:25,794 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)] === [2022-11-18 01:53:25,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:53:25,794 INFO L85 PathProgramCache]: Analyzing trace with hash -1690314597, now seen corresponding path program 1 times [2022-11-18 01:53:25,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:53:25,795 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1211427984] [2022-11-18 01:53:25,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:53:25,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:53:25,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:53:28,682 INFO L134 CoverageAnalysis]: Checked inductivity of 4689 backedges. 0 proven. 4681 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 01:53:28,682 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:53:28,682 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1211427984] [2022-11-18 01:53:28,682 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1211427984] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 01:53:28,682 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1029587064] [2022-11-18 01:53:28,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:53:28,682 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:53:28,682 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 [2022-11-18 01:53:28,683 INFO L229 MonitoredProcess]: Starting monitored process 171 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 01:53:28,686 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (171)] Waiting until timeout for monitored process [2022-11-18 01:53:30,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:53:30,504 INFO L263 TraceCheckSpWp]: Trace formula consists of 1114 conjuncts, 64 conjunts are in the unsatisfiable core [2022-11-18 01:53:30,508 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 01:53:30,911 INFO L134 CoverageAnalysis]: Checked inductivity of 4689 backedges. 0 proven. 4681 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 01:53:30,911 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 01:53:34,784 INFO L134 CoverageAnalysis]: Checked inductivity of 4689 backedges. 0 proven. 4681 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 01:53:34,784 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1029587064] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 01:53:34,784 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 01:53:34,785 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [65, 65, 65] total 130 [2022-11-18 01:53:34,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715860006] [2022-11-18 01:53:34,785 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 01:53:34,785 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 130 states [2022-11-18 01:53:34,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:53:34,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 130 interpolants. [2022-11-18 01:53:34,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4290, Invalid=12480, Unknown=0, NotChecked=0, Total=16770 [2022-11-18 01:53:34,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:53:34,790 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:53:34,790 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 130 states, 130 states have (on average 5.769230769230769) internal successors, (750), 130 states have internal predecessors, (750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:53:34,790 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:53:34,790 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:53:34,791 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:53:34,791 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:53:34,791 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:53:34,791 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-11-18 01:53:34,791 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2022-11-18 01:53:34,791 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 93 states. [2022-11-18 01:53:34,792 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:53:47,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:53:47,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:53:47,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:53:47,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:53:47,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:53:47,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-18 01:53:47,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-11-18 01:53:47,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2022-11-18 01:53:47,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 114 states. [2022-11-18 01:53:47,476 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (171)] Forceful destruction successful, exit code 0 [2022-11-18 01:53:47,664 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 171 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable312 [2022-11-18 01:53:47,664 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)] === [2022-11-18 01:53:47,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:53:47,664 INFO L85 PathProgramCache]: Analyzing trace with hash -690376948, now seen corresponding path program 1 times [2022-11-18 01:53:47,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:53:47,664 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1078994982] [2022-11-18 01:53:47,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:53:47,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:53:47,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 01:53:47,741 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 01:53:47,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 01:53:47,866 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 01:53:47,866 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-18 01:53:47,866 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 7 remaining) [2022-11-18 01:53:47,866 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 7 remaining) [2022-11-18 01:53:47,866 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 7 remaining) [2022-11-18 01:53:47,866 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 7 remaining) [2022-11-18 01:53:47,866 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 7 remaining) [2022-11-18 01:53:47,866 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (1 of 7 remaining) [2022-11-18 01:53:47,867 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK (0 of 7 remaining) [2022-11-18 01:53:47,867 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable313 [2022-11-18 01:53:47,870 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 01:53:47,870 WARN L233 ceAbstractionStarter]: 37 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-18 01:53:47,871 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 38 thread instances. [2022-11-18 01:53:47,966 INFO L144 ThreadInstanceAdder]: Constructed 38 joinOtherThreadTransitions. [2022-11-18 01:53:47,972 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 01:53:47,973 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-11-18 01:53:47,973 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 [2022-11-18 01:53:47,976 INFO L229 MonitoredProcess]: Starting monitored process 172 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-11-18 01:53:47,985 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-11-18 01:53:47,986 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2022-11-18 01:53:47,986 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;@38e98ff3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 01:53:47,986 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-11-18 01:53:47,999 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (172)] Waiting until timeout for monitored process [2022-11-18 01:53:48,011 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)] === [2022-11-18 01:53:48,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:53:48,011 INFO L85 PathProgramCache]: Analyzing trace with hash -332488598, now seen corresponding path program 1 times [2022-11-18 01:53:48,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:53:48,011 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [157617664] [2022-11-18 01:53:48,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:53:48,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:53:48,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:53:48,043 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:53:48,043 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:53:48,044 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [157617664] [2022-11-18 01:53:48,044 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [157617664] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 01:53:48,044 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 01:53:48,044 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 01:53:48,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1114251807] [2022-11-18 01:53:48,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 01:53:48,044 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-18 01:53:48,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:53:48,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-18 01:53:48,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-18 01:53:48,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:53:48,045 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:53:48,045 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 27.5) internal successors, (55), 2 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:53:48,045 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:53:48,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:53:48,046 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable314 [2022-11-18 01:53:48,047 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)] === [2022-11-18 01:53:48,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:53:48,047 INFO L85 PathProgramCache]: Analyzing trace with hash 1175063211, now seen corresponding path program 1 times [2022-11-18 01:53:48,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:53:48,047 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [946997920] [2022-11-18 01:53:48,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:53:48,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:53:48,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:53:48,085 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:53:48,085 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:53:48,085 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [946997920] [2022-11-18 01:53:48,085 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [946997920] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 01:53:48,085 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 01:53:48,085 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 01:53:48,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [863972046] [2022-11-18 01:53:48,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 01:53:48,086 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 01:53:48,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:53:48,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 01:53:48,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 01:53:48,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:53:48,087 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:53:48,087 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:53:48,087 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:53:48,087 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:53:48,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:53:48,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:53:48,616 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable315 [2022-11-18 01:53:48,617 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)] === [2022-11-18 01:53:48,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:53:48,617 INFO L85 PathProgramCache]: Analyzing trace with hash 1856854564, now seen corresponding path program 1 times [2022-11-18 01:53:48,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:53:48,617 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [847087290] [2022-11-18 01:53:48,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:53:48,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:53:48,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:53:48,671 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:53:48,671 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:53:48,671 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [847087290] [2022-11-18 01:53:48,671 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [847087290] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 01:53:48,672 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [945478327] [2022-11-18 01:53:48,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:53:48,672 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:53:48,672 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 [2022-11-18 01:53:48,675 INFO L229 MonitoredProcess]: Starting monitored process 173 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 01:53:48,676 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (173)] Waiting until timeout for monitored process [2022-11-18 01:53:50,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:53:50,489 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 01:53:50,490 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 01:53:50,511 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:53:50,511 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 01:53:50,540 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:53:50,540 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [945478327] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 01:53:50,540 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 01:53:50,540 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-11-18 01:53:50,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1532859966] [2022-11-18 01:53:50,541 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 01:53:50,541 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-18 01:53:50,541 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:53:50,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-18 01:53:50,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-18 01:53:50,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:53:50,542 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:53:50,542 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.7) internal successors, (87), 10 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:53:50,542 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:53:50,542 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:53:50,542 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:53:50,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:53:50,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:53:50,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:53:50,897 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (173)] Forceful destruction successful, exit code 0 [2022-11-18 01:53:51,085 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 173 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable316 [2022-11-18 01:53:51,085 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)] === [2022-11-18 01:53:51,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:53:51,086 INFO L85 PathProgramCache]: Analyzing trace with hash 706671257, now seen corresponding path program 1 times [2022-11-18 01:53:51,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:53:51,086 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1893633964] [2022-11-18 01:53:51,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:53:51,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:53:51,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:53:51,160 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-18 01:53:51,161 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:53:51,161 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1893633964] [2022-11-18 01:53:51,161 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1893633964] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 01:53:51,161 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 01:53:51,161 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 01:53:51,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1543021217] [2022-11-18 01:53:51,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 01:53:51,162 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 01:53:51,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:53:51,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 01:53:51,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 01:53:51,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:53:51,163 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:53:51,163 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:53:51,163 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:53:51,163 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:53:51,163 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:53:51,163 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:53:51,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:53:51,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:53:51,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:53:51,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 01:53:51,477 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable317 [2022-11-18 01:53:51,478 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)] === [2022-11-18 01:53:51,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:53:51,478 INFO L85 PathProgramCache]: Analyzing trace with hash 138725026, now seen corresponding path program 1 times [2022-11-18 01:53:51,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:53:51,478 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1550302882] [2022-11-18 01:53:51,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:53:51,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:53:51,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:53:51,527 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-18 01:53:51,527 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:53:51,527 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1550302882] [2022-11-18 01:53:51,527 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1550302882] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 01:53:51,527 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 01:53:51,527 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 01:53:51,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [774051335] [2022-11-18 01:53:51,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 01:53:51,528 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 01:53:51,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:53:51,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 01:53:51,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 01:53:51,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:53:51,529 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:53:51,529 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:53:51,529 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:53:51,529 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:53:51,529 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:53:51,529 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-11-18 01:53:51,529 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:53:52,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:53:52,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:53:52,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:53:52,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:53:52,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:53:52,031 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable318 [2022-11-18 01:53:52,031 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)] === [2022-11-18 01:53:52,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:53:52,031 INFO L85 PathProgramCache]: Analyzing trace with hash -2015832988, now seen corresponding path program 1 times [2022-11-18 01:53:52,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:53:52,031 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1006999697] [2022-11-18 01:53:52,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:53:52,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:53:52,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:53:52,101 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-18 01:53:52,101 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:53:52,101 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1006999697] [2022-11-18 01:53:52,102 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1006999697] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 01:53:52,102 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1691850659] [2022-11-18 01:53:52,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:53:52,102 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:53:52,102 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 [2022-11-18 01:53:52,103 INFO L229 MonitoredProcess]: Starting monitored process 174 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 01:53:52,105 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (174)] Waiting until timeout for monitored process [2022-11-18 01:53:53,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:53:53,840 INFO L263 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-18 01:53:53,841 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 01:53:53,917 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 01:53:53,917 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 01:53:54,021 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 01:53:54,021 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1691850659] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 01:53:54,021 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 01:53:54,021 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 9, 9] total 19 [2022-11-18 01:53:54,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2045408222] [2022-11-18 01:53:54,022 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 01:53:54,022 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-18 01:53:54,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:53:54,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-18 01:53:54,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=263, Unknown=0, NotChecked=0, Total=342 [2022-11-18 01:53:54,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:53:54,023 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:53:54,023 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 11.631578947368421) internal successors, (221), 19 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:53:54,023 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:53:54,023 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:53:54,023 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:53:54,023 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:53:54,023 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:53:54,023 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:53:54,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:53:54,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:53:54,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:53:54,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:53:54,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:53:54,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-18 01:53:54,989 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (174)] Ended with exit code 0 [2022-11-18 01:53:55,183 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 174 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable319 [2022-11-18 01:53:55,183 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)] === [2022-11-18 01:53:55,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:53:55,184 INFO L85 PathProgramCache]: Analyzing trace with hash -1432639925, now seen corresponding path program 1 times [2022-11-18 01:53:55,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:53:55,184 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [788392497] [2022-11-18 01:53:55,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:53:55,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:53:55,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:53:55,442 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 217 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 01:53:55,443 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:53:55,443 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [788392497] [2022-11-18 01:53:55,443 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [788392497] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 01:53:55,443 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [478746847] [2022-11-18 01:53:55,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:53:55,443 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:53:55,443 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 [2022-11-18 01:53:55,444 INFO L229 MonitoredProcess]: Starting monitored process 175 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 01:53:55,446 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (175)] Waiting until timeout for monitored process [2022-11-18 01:53:57,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:53:57,216 INFO L263 TraceCheckSpWp]: Trace formula consists of 490 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-18 01:53:57,217 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 01:53:57,312 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 217 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 01:53:57,312 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 01:53:57,602 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 217 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 01:53:57,602 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [478746847] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 01:53:57,602 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 01:53:57,603 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 34 [2022-11-18 01:53:57,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205374203] [2022-11-18 01:53:57,603 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 01:53:57,603 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-11-18 01:53:57,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:53:57,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-11-18 01:53:57,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2022-11-18 01:53:57,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:53:57,604 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:53:57,604 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 7.9411764705882355) internal successors, (270), 34 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:53:57,605 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:53:57,605 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:53:57,605 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:53:57,605 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:53:57,605 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:53:57,605 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-11-18 01:53:57,605 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:53:59,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:53:59,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:53:59,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:53:59,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:53:59,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:53:59,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-18 01:53:59,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-11-18 01:53:59,976 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (175)] Forceful destruction successful, exit code 0 [2022-11-18 01:54:00,171 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable320,175 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:54:00,171 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)] === [2022-11-18 01:54:00,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:54:00,171 INFO L85 PathProgramCache]: Analyzing trace with hash 1099005071, now seen corresponding path program 1 times [2022-11-18 01:54:00,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:54:00,172 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2007836177] [2022-11-18 01:54:00,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:54:00,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:54:00,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:54:00,943 INFO L134 CoverageAnalysis]: Checked inductivity of 1073 backedges. 0 proven. 1065 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 01:54:00,943 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:54:00,943 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2007836177] [2022-11-18 01:54:00,943 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2007836177] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 01:54:00,943 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [89510710] [2022-11-18 01:54:00,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:54:00,943 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:54:00,944 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 [2022-11-18 01:54:00,945 INFO L229 MonitoredProcess]: Starting monitored process 176 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 01:54:00,947 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (176)] Waiting until timeout for monitored process [2022-11-18 01:54:02,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:54:02,779 INFO L263 TraceCheckSpWp]: Trace formula consists of 698 conjuncts, 32 conjunts are in the unsatisfiable core [2022-11-18 01:54:02,781 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 01:54:02,970 INFO L134 CoverageAnalysis]: Checked inductivity of 1073 backedges. 0 proven. 1065 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 01:54:02,970 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 01:54:03,953 INFO L134 CoverageAnalysis]: Checked inductivity of 1073 backedges. 0 proven. 1065 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 01:54:03,953 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [89510710] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 01:54:03,953 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 01:54:03,954 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33, 33] total 66 [2022-11-18 01:54:03,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818281009] [2022-11-18 01:54:03,954 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 01:54:03,955 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 66 states [2022-11-18 01:54:03,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:54:03,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2022-11-18 01:54:03,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1122, Invalid=3168, Unknown=0, NotChecked=0, Total=4290 [2022-11-18 01:54:03,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:54:03,956 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:54:03,956 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 66 states, 66 states have (on average 6.515151515151516) internal successors, (430), 66 states have internal predecessors, (430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:54:03,956 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:54:03,956 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:54:03,956 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:54:03,956 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:54:03,956 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:54:03,957 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-11-18 01:54:03,957 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2022-11-18 01:54:03,957 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:54:12,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:54:12,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:54:12,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:54:12,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:54:12,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:54:12,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-18 01:54:12,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-11-18 01:54:12,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2022-11-18 01:54:12,172 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (176)] Ended with exit code 0 [2022-11-18 01:54:12,361 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 176 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable321 [2022-11-18 01:54:12,361 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)] === [2022-11-18 01:54:12,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:54:12,361 INFO L85 PathProgramCache]: Analyzing trace with hash -1749889385, now seen corresponding path program 1 times [2022-11-18 01:54:12,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:54:12,361 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1202204716] [2022-11-18 01:54:12,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:54:12,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:54:12,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:54:15,145 INFO L134 CoverageAnalysis]: Checked inductivity of 4689 backedges. 0 proven. 4681 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 01:54:15,146 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:54:15,146 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1202204716] [2022-11-18 01:54:15,146 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1202204716] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 01:54:15,146 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1576007145] [2022-11-18 01:54:15,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:54:15,146 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:54:15,146 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 [2022-11-18 01:54:15,147 INFO L229 MonitoredProcess]: Starting monitored process 177 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 01:54:15,149 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (177)] Waiting until timeout for monitored process [2022-11-18 01:54:17,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:54:17,048 INFO L263 TraceCheckSpWp]: Trace formula consists of 1114 conjuncts, 64 conjunts are in the unsatisfiable core [2022-11-18 01:54:17,051 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 01:54:17,435 INFO L134 CoverageAnalysis]: Checked inductivity of 4689 backedges. 0 proven. 4681 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 01:54:17,435 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 01:54:21,119 INFO L134 CoverageAnalysis]: Checked inductivity of 4689 backedges. 0 proven. 4681 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 01:54:21,119 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1576007145] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 01:54:21,119 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 01:54:21,120 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [65, 65, 65] total 130 [2022-11-18 01:54:21,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [566849685] [2022-11-18 01:54:21,120 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 01:54:21,121 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 130 states [2022-11-18 01:54:21,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:54:21,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 130 interpolants. [2022-11-18 01:54:21,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4290, Invalid=12480, Unknown=0, NotChecked=0, Total=16770 [2022-11-18 01:54:21,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:54:21,125 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:54:21,126 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 130 states, 130 states have (on average 5.769230769230769) internal successors, (750), 130 states have internal predecessors, (750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:54:21,126 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:54:21,126 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:54:21,126 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:54:21,126 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:54:21,126 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:54:21,126 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-11-18 01:54:21,127 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2022-11-18 01:54:21,127 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 93 states. [2022-11-18 01:54:21,127 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:54:33,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:54:33,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:54:33,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:54:33,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:54:33,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:54:33,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-18 01:54:33,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-11-18 01:54:33,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2022-11-18 01:54:33,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 117 states. [2022-11-18 01:54:33,505 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (177)] Forceful destruction successful, exit code 0 [2022-11-18 01:54:33,694 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 177 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable322 [2022-11-18 01:54:33,694 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)] === [2022-11-18 01:54:33,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:54:33,694 INFO L85 PathProgramCache]: Analyzing trace with hash -664044758, now seen corresponding path program 1 times [2022-11-18 01:54:33,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:54:33,694 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876278031] [2022-11-18 01:54:33,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:54:33,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:54:33,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 01:54:33,775 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 01:54:33,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 01:54:33,923 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 01:54:33,923 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-18 01:54:33,923 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 7 remaining) [2022-11-18 01:54:33,923 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 7 remaining) [2022-11-18 01:54:33,923 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 7 remaining) [2022-11-18 01:54:33,923 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 7 remaining) [2022-11-18 01:54:33,924 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 7 remaining) [2022-11-18 01:54:33,924 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (1 of 7 remaining) [2022-11-18 01:54:33,924 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK (0 of 7 remaining) [2022-11-18 01:54:33,924 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable323 [2022-11-18 01:54:33,927 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 01:54:33,927 WARN L233 ceAbstractionStarter]: 38 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-18 01:54:33,927 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 39 thread instances. [2022-11-18 01:54:34,032 INFO L144 ThreadInstanceAdder]: Constructed 39 joinOtherThreadTransitions. [2022-11-18 01:54:34,039 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 01:54:34,040 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-11-18 01:54:34,040 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 [2022-11-18 01:54:34,041 INFO L229 MonitoredProcess]: Starting monitored process 178 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-11-18 01:54:34,049 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-11-18 01:54:34,050 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2022-11-18 01:54:34,050 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;@38e98ff3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 01:54:34,050 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-11-18 01:54:34,068 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (178)] Waiting until timeout for monitored process [2022-11-18 01:54:34,104 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)] === [2022-11-18 01:54:34,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:54:34,105 INFO L85 PathProgramCache]: Analyzing trace with hash -1687019070, now seen corresponding path program 1 times [2022-11-18 01:54:34,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:54:34,105 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1958578865] [2022-11-18 01:54:34,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:54:34,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:54:34,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:54:34,145 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:54:34,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:54:34,145 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1958578865] [2022-11-18 01:54:34,145 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1958578865] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 01:54:34,145 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 01:54:34,146 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 01:54:34,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [405296683] [2022-11-18 01:54:34,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 01:54:34,146 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-18 01:54:34,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:54:34,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-18 01:54:34,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-18 01:54:34,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:54:34,147 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:54:34,148 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 27.5) internal successors, (55), 2 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:54:34,148 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:54:34,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:54:34,149 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable324 [2022-11-18 01:54:34,149 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)] === [2022-11-18 01:54:34,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:54:34,149 INFO L85 PathProgramCache]: Analyzing trace with hash -179467261, now seen corresponding path program 1 times [2022-11-18 01:54:34,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:54:34,150 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1491691166] [2022-11-18 01:54:34,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:54:34,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:54:34,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:54:34,200 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:54:34,200 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:54:34,200 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1491691166] [2022-11-18 01:54:34,200 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1491691166] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 01:54:34,201 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 01:54:34,201 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 01:54:34,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [121215056] [2022-11-18 01:54:34,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 01:54:34,201 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 01:54:34,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:54:34,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 01:54:34,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 01:54:34,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:54:34,203 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:54:34,203 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:54:34,203 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:54:34,203 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:54:34,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:54:34,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:54:34,789 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable325 [2022-11-18 01:54:34,789 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)] === [2022-11-18 01:54:34,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:54:34,789 INFO L85 PathProgramCache]: Analyzing trace with hash 1526652568, now seen corresponding path program 1 times [2022-11-18 01:54:34,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:54:34,790 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [4939696] [2022-11-18 01:54:34,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:54:34,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:54:34,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:54:34,854 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:54:34,854 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:54:34,855 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [4939696] [2022-11-18 01:54:34,855 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [4939696] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 01:54:34,855 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [400606117] [2022-11-18 01:54:34,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:54:34,855 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:54:34,855 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 [2022-11-18 01:54:34,859 INFO L229 MonitoredProcess]: Starting monitored process 179 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 01:54:34,860 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (179)] Waiting until timeout for monitored process [2022-11-18 01:54:36,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:54:36,656 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 01:54:36,657 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 01:54:36,679 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:54:36,679 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 01:54:36,708 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:54:36,708 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [400606117] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 01:54:36,708 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 01:54:36,708 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-11-18 01:54:36,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1895526624] [2022-11-18 01:54:36,708 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 01:54:36,709 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-18 01:54:36,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:54:36,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-18 01:54:36,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-18 01:54:36,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:54:36,710 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:54:36,710 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.7) internal successors, (87), 10 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:54:36,710 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:54:36,710 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:54:36,710 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:54:37,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:54:37,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:54:37,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:54:37,094 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (179)] Forceful destruction successful, exit code 0 [2022-11-18 01:54:37,282 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 179 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable326 [2022-11-18 01:54:37,282 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)] === [2022-11-18 01:54:37,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:54:37,282 INFO L85 PathProgramCache]: Analyzing trace with hash 650355781, now seen corresponding path program 1 times [2022-11-18 01:54:37,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:54:37,282 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1403605703] [2022-11-18 01:54:37,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:54:37,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:54:37,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:54:37,355 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-18 01:54:37,355 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:54:37,355 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1403605703] [2022-11-18 01:54:37,355 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1403605703] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 01:54:37,355 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 01:54:37,356 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 01:54:37,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [534591195] [2022-11-18 01:54:37,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 01:54:37,356 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 01:54:37,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:54:37,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 01:54:37,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 01:54:37,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:54:37,357 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:54:37,357 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:54:37,357 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:54:37,357 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:54:37,357 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:54:37,357 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:54:37,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:54:37,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:54:37,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:54:37,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 01:54:37,728 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable327 [2022-11-18 01:54:37,729 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)] === [2022-11-18 01:54:37,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:54:37,729 INFO L85 PathProgramCache]: Analyzing trace with hash 13534414, now seen corresponding path program 1 times [2022-11-18 01:54:37,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:54:37,729 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1580054216] [2022-11-18 01:54:37,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:54:37,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:54:37,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:54:37,777 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-18 01:54:37,777 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:54:37,777 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1580054216] [2022-11-18 01:54:37,777 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1580054216] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 01:54:37,777 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 01:54:37,777 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 01:54:37,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68434317] [2022-11-18 01:54:37,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 01:54:37,778 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 01:54:37,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:54:37,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 01:54:37,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 01:54:37,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:54:37,779 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:54:37,779 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:54:37,779 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:54:37,780 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:54:37,780 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:54:37,780 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-11-18 01:54:37,780 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:54:38,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:54:38,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:54:38,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:54:38,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:54:38,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:54:38,340 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable328 [2022-11-18 01:54:38,340 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)] === [2022-11-18 01:54:38,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:54:38,341 INFO L85 PathProgramCache]: Analyzing trace with hash 1936653459, now seen corresponding path program 1 times [2022-11-18 01:54:38,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:54:38,341 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [763314392] [2022-11-18 01:54:38,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:54:38,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:54:38,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:54:38,431 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-18 01:54:38,431 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:54:38,432 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [763314392] [2022-11-18 01:54:38,432 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [763314392] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 01:54:38,432 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [238200343] [2022-11-18 01:54:38,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:54:38,432 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:54:38,433 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 [2022-11-18 01:54:38,436 INFO L229 MonitoredProcess]: Starting monitored process 180 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 01:54:38,437 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (180)] Waiting until timeout for monitored process [2022-11-18 01:54:40,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:54:40,252 INFO L263 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-18 01:54:40,252 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 01:54:40,328 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 01:54:40,328 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 01:54:40,431 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 01:54:40,431 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [238200343] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 01:54:40,431 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 01:54:40,432 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 9, 9] total 19 [2022-11-18 01:54:40,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [78886639] [2022-11-18 01:54:40,432 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 01:54:40,432 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-18 01:54:40,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:54:40,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-18 01:54:40,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=263, Unknown=0, NotChecked=0, Total=342 [2022-11-18 01:54:40,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:54:40,433 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:54:40,433 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 11.631578947368421) internal successors, (221), 19 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:54:40,433 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:54:40,433 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:54:40,434 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:54:40,434 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:54:40,434 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:54:40,434 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:54:41,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:54:41,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:54:41,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:54:41,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:54:41,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:54:41,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-18 01:54:41,547 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (180)] Forceful destruction successful, exit code 0 [2022-11-18 01:54:41,735 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable329,180 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:54:41,736 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)] === [2022-11-18 01:54:41,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:54:41,736 INFO L85 PathProgramCache]: Analyzing trace with hash 304841703, now seen corresponding path program 1 times [2022-11-18 01:54:41,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:54:41,736 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1167187363] [2022-11-18 01:54:41,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:54:41,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:54:41,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:54:41,998 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 217 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 01:54:41,998 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:54:41,998 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1167187363] [2022-11-18 01:54:41,998 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1167187363] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 01:54:41,999 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1255336287] [2022-11-18 01:54:41,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:54:41,999 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:54:41,999 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 [2022-11-18 01:54:42,000 INFO L229 MonitoredProcess]: Starting monitored process 181 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 01:54:42,002 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (181)] Waiting until timeout for monitored process [2022-11-18 01:54:43,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:54:43,878 INFO L263 TraceCheckSpWp]: Trace formula consists of 490 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-18 01:54:43,880 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 01:54:43,973 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 217 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 01:54:43,973 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 01:54:44,261 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 217 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 01:54:44,261 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1255336287] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 01:54:44,261 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 01:54:44,261 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 34 [2022-11-18 01:54:44,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2110732501] [2022-11-18 01:54:44,261 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 01:54:44,262 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-11-18 01:54:44,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:54:44,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-11-18 01:54:44,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2022-11-18 01:54:44,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:54:44,264 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:54:44,264 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 7.9411764705882355) internal successors, (270), 34 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:54:44,264 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:54:44,264 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:54:44,264 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:54:44,264 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:54:44,264 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:54:44,264 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-11-18 01:54:44,265 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:54:46,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:54:46,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:54:46,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:54:46,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:54:46,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:54:46,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-18 01:54:46,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-11-18 01:54:46,425 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (181)] Forceful destruction successful, exit code 0 [2022-11-18 01:54:46,614 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable330,181 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:54:46,614 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)] === [2022-11-18 01:54:46,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:54:46,614 INFO L85 PathProgramCache]: Analyzing trace with hash 1421548107, now seen corresponding path program 1 times [2022-11-18 01:54:46,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:54:46,615 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1099951819] [2022-11-18 01:54:46,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:54:46,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:54:46,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:54:47,465 INFO L134 CoverageAnalysis]: Checked inductivity of 1073 backedges. 0 proven. 1065 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 01:54:47,465 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:54:47,465 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1099951819] [2022-11-18 01:54:47,465 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1099951819] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 01:54:47,465 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1737913366] [2022-11-18 01:54:47,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:54:47,465 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:54:47,466 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 [2022-11-18 01:54:47,467 INFO L229 MonitoredProcess]: Starting monitored process 182 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 01:54:47,469 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (182)] Waiting until timeout for monitored process [2022-11-18 01:54:49,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:54:49,368 INFO L263 TraceCheckSpWp]: Trace formula consists of 698 conjuncts, 32 conjunts are in the unsatisfiable core [2022-11-18 01:54:49,370 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 01:54:49,559 INFO L134 CoverageAnalysis]: Checked inductivity of 1073 backedges. 0 proven. 1065 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 01:54:49,559 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 01:54:50,554 INFO L134 CoverageAnalysis]: Checked inductivity of 1073 backedges. 0 proven. 1065 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 01:54:50,555 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1737913366] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 01:54:50,555 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 01:54:50,555 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33, 33] total 66 [2022-11-18 01:54:50,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094826173] [2022-11-18 01:54:50,555 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 01:54:50,556 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 66 states [2022-11-18 01:54:50,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:54:50,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2022-11-18 01:54:50,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1122, Invalid=3168, Unknown=0, NotChecked=0, Total=4290 [2022-11-18 01:54:50,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:54:50,558 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:54:50,558 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 66 states, 66 states have (on average 6.515151515151516) internal successors, (430), 66 states have internal predecessors, (430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:54:50,558 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:54:50,558 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:54:50,558 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:54:50,558 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:54:50,558 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:54:50,558 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-11-18 01:54:50,558 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2022-11-18 01:54:50,558 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:55:00,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:55:00,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:55:00,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:55:00,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:55:00,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:55:00,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-18 01:55:00,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-11-18 01:55:00,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2022-11-18 01:55:00,938 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (182)] Ended with exit code 0 [2022-11-18 01:55:01,129 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 182 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable331 [2022-11-18 01:55:01,129 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)] === [2022-11-18 01:55:01,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:55:01,129 INFO L85 PathProgramCache]: Analyzing trace with hash 1480198803, now seen corresponding path program 1 times [2022-11-18 01:55:01,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:55:01,129 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [90224571] [2022-11-18 01:55:01,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:55:01,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:55:01,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:55:03,881 INFO L134 CoverageAnalysis]: Checked inductivity of 4689 backedges. 0 proven. 4681 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 01:55:03,881 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:55:03,881 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [90224571] [2022-11-18 01:55:03,881 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [90224571] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 01:55:03,881 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [344037718] [2022-11-18 01:55:03,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:55:03,881 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:55:03,882 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 [2022-11-18 01:55:03,883 INFO L229 MonitoredProcess]: Starting monitored process 183 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 01:55:03,885 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (183)] Waiting until timeout for monitored process [2022-11-18 01:55:05,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:55:05,861 INFO L263 TraceCheckSpWp]: Trace formula consists of 1114 conjuncts, 64 conjunts are in the unsatisfiable core [2022-11-18 01:55:05,864 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 01:55:06,247 INFO L134 CoverageAnalysis]: Checked inductivity of 4689 backedges. 0 proven. 4681 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 01:55:06,247 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 01:55:09,832 INFO L134 CoverageAnalysis]: Checked inductivity of 4689 backedges. 0 proven. 4681 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 01:55:09,832 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [344037718] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 01:55:09,832 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 01:55:09,833 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [65, 65, 65] total 130 [2022-11-18 01:55:09,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1322307792] [2022-11-18 01:55:09,833 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 01:55:09,834 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 130 states [2022-11-18 01:55:09,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:55:09,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 130 interpolants. [2022-11-18 01:55:09,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4290, Invalid=12480, Unknown=0, NotChecked=0, Total=16770 [2022-11-18 01:55:09,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:55:09,838 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:55:09,839 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 130 states, 130 states have (on average 5.769230769230769) internal successors, (750), 130 states have internal predecessors, (750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:55:09,839 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:55:09,839 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:55:09,839 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:55:09,839 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:55:09,839 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:55:09,839 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-11-18 01:55:09,840 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2022-11-18 01:55:09,840 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 93 states. [2022-11-18 01:55:09,840 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:55:24,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:55:24,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:55:24,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:55:24,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:55:24,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:55:24,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-18 01:55:24,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-11-18 01:55:24,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2022-11-18 01:55:24,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 120 states. [2022-11-18 01:55:24,484 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (183)] Forceful destruction successful, exit code 0 [2022-11-18 01:55:24,672 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 183 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable332 [2022-11-18 01:55:24,673 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)] === [2022-11-18 01:55:24,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:55:24,673 INFO L85 PathProgramCache]: Analyzing trace with hash -2003550207, now seen corresponding path program 1 times [2022-11-18 01:55:24,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:55:24,673 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1527895491] [2022-11-18 01:55:24,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:55:24,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:55:24,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 01:55:24,755 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 01:55:24,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 01:55:24,888 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 01:55:24,888 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-18 01:55:24,888 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 7 remaining) [2022-11-18 01:55:24,889 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 7 remaining) [2022-11-18 01:55:24,889 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 7 remaining) [2022-11-18 01:55:24,889 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 7 remaining) [2022-11-18 01:55:24,889 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 7 remaining) [2022-11-18 01:55:24,889 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (1 of 7 remaining) [2022-11-18 01:55:24,889 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK (0 of 7 remaining) [2022-11-18 01:55:24,890 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable333 [2022-11-18 01:55:24,893 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 01:55:24,893 WARN L233 ceAbstractionStarter]: 39 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-18 01:55:24,893 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 40 thread instances. [2022-11-18 01:55:24,981 INFO L144 ThreadInstanceAdder]: Constructed 40 joinOtherThreadTransitions. [2022-11-18 01:55:24,987 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 01:55:24,987 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-11-18 01:55:24,987 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 [2022-11-18 01:55:24,988 INFO L229 MonitoredProcess]: Starting monitored process 184 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-11-18 01:55:24,992 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-11-18 01:55:24,993 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2022-11-18 01:55:24,993 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;@38e98ff3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 01:55:24,993 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-11-18 01:55:24,995 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (184)] Waiting until timeout for monitored process [2022-11-18 01:55:25,017 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)] === [2022-11-18 01:55:25,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:55:25,018 INFO L85 PathProgramCache]: Analyzing trace with hash 1869466458, now seen corresponding path program 1 times [2022-11-18 01:55:25,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:55:25,018 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [226723705] [2022-11-18 01:55:25,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:55:25,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:55:25,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:55:25,048 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:55:25,048 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:55:25,048 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [226723705] [2022-11-18 01:55:25,048 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [226723705] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 01:55:25,049 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 01:55:25,049 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 01:55:25,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577640604] [2022-11-18 01:55:25,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 01:55:25,049 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-18 01:55:25,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:55:25,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-18 01:55:25,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-18 01:55:25,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:55:25,050 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:55:25,051 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 27.5) internal successors, (55), 2 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:55:25,051 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:55:25,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:55:25,052 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable334 [2022-11-18 01:55:25,052 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)] === [2022-11-18 01:55:25,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:55:25,053 INFO L85 PathProgramCache]: Analyzing trace with hash -917949029, now seen corresponding path program 1 times [2022-11-18 01:55:25,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:55:25,053 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1930012389] [2022-11-18 01:55:25,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:55:25,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:55:25,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:55:25,100 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:55:25,100 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:55:25,101 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1930012389] [2022-11-18 01:55:25,101 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1930012389] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 01:55:25,101 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 01:55:25,101 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 01:55:25,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1341006927] [2022-11-18 01:55:25,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 01:55:25,102 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 01:55:25,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:55:25,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 01:55:25,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 01:55:25,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:55:25,103 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:55:25,103 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:55:25,103 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:55:25,103 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:55:25,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:55:25,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:55:25,705 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable335 [2022-11-18 01:55:25,705 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)] === [2022-11-18 01:55:25,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:55:25,706 INFO L85 PathProgramCache]: Analyzing trace with hash -1588632756, now seen corresponding path program 1 times [2022-11-18 01:55:25,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:55:25,706 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1368403613] [2022-11-18 01:55:25,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:55:25,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:55:25,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:55:25,756 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:55:25,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:55:25,756 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1368403613] [2022-11-18 01:55:25,757 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1368403613] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 01:55:25,757 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [192090518] [2022-11-18 01:55:25,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:55:25,757 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:55:25,757 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 [2022-11-18 01:55:25,759 INFO L229 MonitoredProcess]: Starting monitored process 185 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 01:55:25,760 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (185)] Waiting until timeout for monitored process [2022-11-18 01:55:27,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:55:27,629 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 01:55:27,630 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 01:55:27,652 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:55:27,652 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 01:55:27,680 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:55:27,680 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [192090518] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 01:55:27,680 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 01:55:27,680 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-11-18 01:55:27,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1958651022] [2022-11-18 01:55:27,680 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 01:55:27,681 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-18 01:55:27,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:55:27,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-18 01:55:27,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-18 01:55:27,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:55:27,682 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:55:27,682 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.7) internal successors, (87), 10 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:55:27,682 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:55:27,682 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:55:27,682 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:55:28,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:55:28,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:55:28,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:55:28,031 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (185)] Forceful destruction successful, exit code 0 [2022-11-18 01:55:28,217 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable336,185 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:55:28,218 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)] === [2022-11-18 01:55:28,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:55:28,218 INFO L85 PathProgramCache]: Analyzing trace with hash 795543089, now seen corresponding path program 1 times [2022-11-18 01:55:28,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:55:28,218 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1784273306] [2022-11-18 01:55:28,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:55:28,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:55:28,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:55:28,288 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-18 01:55:28,288 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:55:28,288 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1784273306] [2022-11-18 01:55:28,288 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1784273306] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 01:55:28,288 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 01:55:28,288 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 01:55:28,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617123332] [2022-11-18 01:55:28,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 01:55:28,288 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 01:55:28,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:55:28,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 01:55:28,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 01:55:28,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:55:28,289 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:55:28,290 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:55:28,290 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:55:28,290 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:55:28,290 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:55:28,290 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:55:28,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:55:28,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:55:28,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:55:28,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 01:55:28,599 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable337 [2022-11-18 01:55:28,599 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)] === [2022-11-18 01:55:28,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:55:28,599 INFO L85 PathProgramCache]: Analyzing trace with hash -980827398, now seen corresponding path program 1 times [2022-11-18 01:55:28,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:55:28,600 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1275702633] [2022-11-18 01:55:28,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:55:28,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:55:28,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:55:28,642 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-18 01:55:28,642 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:55:28,642 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1275702633] [2022-11-18 01:55:28,642 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1275702633] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 01:55:28,642 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 01:55:28,642 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 01:55:28,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [611867146] [2022-11-18 01:55:28,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 01:55:28,642 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 01:55:28,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:55:28,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 01:55:28,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 01:55:28,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:55:28,643 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:55:28,644 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:55:28,644 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:55:28,644 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:55:28,644 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:55:28,644 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-11-18 01:55:28,644 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:55:29,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:55:29,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:55:29,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:55:29,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:55:29,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:55:29,174 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable338 [2022-11-18 01:55:29,174 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)] === [2022-11-18 01:55:29,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:55:29,174 INFO L85 PathProgramCache]: Analyzing trace with hash -243517438, now seen corresponding path program 1 times [2022-11-18 01:55:29,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:55:29,174 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1072630374] [2022-11-18 01:55:29,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:55:29,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:55:29,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:55:29,244 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-18 01:55:29,245 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:55:29,245 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1072630374] [2022-11-18 01:55:29,245 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1072630374] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 01:55:29,245 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1217091183] [2022-11-18 01:55:29,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:55:29,245 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:55:29,245 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 [2022-11-18 01:55:29,246 INFO L229 MonitoredProcess]: Starting monitored process 186 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 01:55:29,248 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (186)] Waiting until timeout for monitored process [2022-11-18 01:55:31,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:55:31,150 INFO L263 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-18 01:55:31,152 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 01:55:31,227 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 01:55:31,227 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 01:55:31,331 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 01:55:31,331 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1217091183] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 01:55:31,331 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 01:55:31,331 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 9, 9] total 19 [2022-11-18 01:55:31,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806717994] [2022-11-18 01:55:31,332 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 01:55:31,332 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-18 01:55:31,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:55:31,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-18 01:55:31,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=263, Unknown=0, NotChecked=0, Total=342 [2022-11-18 01:55:31,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:55:31,333 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:55:31,333 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 11.631578947368421) internal successors, (221), 19 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:55:31,333 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:55:31,333 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:55:31,334 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:55:31,334 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:55:31,334 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:55:31,334 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:55:32,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:55:32,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:55:32,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:55:32,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:55:32,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:55:32,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-18 01:55:32,667 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (186)] Forceful destruction successful, exit code 0 [2022-11-18 01:55:32,858 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable339,186 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:55:32,858 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)] === [2022-11-18 01:55:32,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:55:32,858 INFO L85 PathProgramCache]: Analyzing trace with hash 900837251, now seen corresponding path program 1 times [2022-11-18 01:55:32,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:55:32,858 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1855448693] [2022-11-18 01:55:32,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:55:32,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:55:32,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:55:33,124 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 217 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 01:55:33,124 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:55:33,124 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1855448693] [2022-11-18 01:55:33,124 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1855448693] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 01:55:33,124 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [921993428] [2022-11-18 01:55:33,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:55:33,124 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:55:33,125 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 [2022-11-18 01:55:33,126 INFO L229 MonitoredProcess]: Starting monitored process 187 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 01:55:33,128 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (187)] Waiting until timeout for monitored process [2022-11-18 01:55:35,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:55:35,172 INFO L263 TraceCheckSpWp]: Trace formula consists of 490 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-18 01:55:35,174 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 01:55:35,267 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 217 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 01:55:35,267 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 01:55:35,555 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 217 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 01:55:35,555 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [921993428] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 01:55:35,555 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 01:55:35,555 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 34 [2022-11-18 01:55:35,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [472284153] [2022-11-18 01:55:35,555 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 01:55:35,556 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-11-18 01:55:35,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:55:35,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-11-18 01:55:35,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2022-11-18 01:55:35,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:55:35,557 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:55:35,557 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 7.9411764705882355) internal successors, (270), 34 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:55:35,557 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:55:35,557 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:55:35,558 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:55:35,558 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:55:35,558 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:55:35,558 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-11-18 01:55:35,558 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:55:38,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:55:38,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:55:38,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:55:38,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:55:38,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:55:38,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-18 01:55:38,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-11-18 01:55:38,359 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (187)] Forceful destruction successful, exit code 0 [2022-11-18 01:55:38,554 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 187 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable340 [2022-11-18 01:55:38,554 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)] === [2022-11-18 01:55:38,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:55:38,555 INFO L85 PathProgramCache]: Analyzing trace with hash -1906010233, now seen corresponding path program 1 times [2022-11-18 01:55:38,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:55:38,555 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1254369128] [2022-11-18 01:55:38,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:55:38,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:55:38,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:55:39,302 INFO L134 CoverageAnalysis]: Checked inductivity of 1073 backedges. 0 proven. 1065 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 01:55:39,302 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:55:39,303 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1254369128] [2022-11-18 01:55:39,303 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1254369128] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 01:55:39,303 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [876666271] [2022-11-18 01:55:39,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:55:39,303 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:55:39,303 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 [2022-11-18 01:55:39,304 INFO L229 MonitoredProcess]: Starting monitored process 188 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 01:55:39,306 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (188)] Waiting until timeout for monitored process [2022-11-18 01:55:41,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:55:41,278 INFO L263 TraceCheckSpWp]: Trace formula consists of 698 conjuncts, 32 conjunts are in the unsatisfiable core [2022-11-18 01:55:41,280 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 01:55:41,471 INFO L134 CoverageAnalysis]: Checked inductivity of 1073 backedges. 0 proven. 1065 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 01:55:41,472 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 01:55:42,454 INFO L134 CoverageAnalysis]: Checked inductivity of 1073 backedges. 0 proven. 1065 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 01:55:42,454 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [876666271] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 01:55:42,454 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 01:55:42,455 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33, 33] total 66 [2022-11-18 01:55:42,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [137576644] [2022-11-18 01:55:42,455 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 01:55:42,455 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 66 states [2022-11-18 01:55:42,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:55:42,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2022-11-18 01:55:42,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1122, Invalid=3168, Unknown=0, NotChecked=0, Total=4290 [2022-11-18 01:55:42,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:55:42,457 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:55:42,457 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 66 states, 66 states have (on average 6.515151515151516) internal successors, (430), 66 states have internal predecessors, (430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:55:42,457 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:55:42,457 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:55:42,457 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:55:42,457 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:55:42,457 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:55:42,457 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-11-18 01:55:42,458 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2022-11-18 01:55:42,458 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:55:53,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:55:53,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:55:53,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:55:53,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:55:53,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:55:53,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-18 01:55:53,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-11-18 01:55:53,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2022-11-18 01:55:53,684 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (188)] Forceful destruction successful, exit code 0 [2022-11-18 01:55:53,872 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable341,188 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:55:53,872 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)] === [2022-11-18 01:55:53,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:55:53,872 INFO L85 PathProgramCache]: Analyzing trace with hash 1508091407, now seen corresponding path program 1 times [2022-11-18 01:55:53,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:55:53,873 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [87367302] [2022-11-18 01:55:53,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:55:53,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:55:53,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:55:56,685 INFO L134 CoverageAnalysis]: Checked inductivity of 4689 backedges. 0 proven. 4681 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 01:55:56,685 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:55:56,685 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [87367302] [2022-11-18 01:55:56,685 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [87367302] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 01:55:56,685 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [597932463] [2022-11-18 01:55:56,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:55:56,685 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:55:56,685 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 [2022-11-18 01:55:56,686 INFO L229 MonitoredProcess]: Starting monitored process 189 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 01:55:56,688 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (189)] Waiting until timeout for monitored process [2022-11-18 01:55:58,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:55:58,755 INFO L263 TraceCheckSpWp]: Trace formula consists of 1114 conjuncts, 64 conjunts are in the unsatisfiable core [2022-11-18 01:55:58,758 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 01:55:59,143 INFO L134 CoverageAnalysis]: Checked inductivity of 4689 backedges. 0 proven. 4681 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 01:55:59,143 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 01:56:02,702 INFO L134 CoverageAnalysis]: Checked inductivity of 4689 backedges. 0 proven. 4681 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 01:56:02,702 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [597932463] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 01:56:02,702 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 01:56:02,703 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [65, 65, 65] total 130 [2022-11-18 01:56:02,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589457844] [2022-11-18 01:56:02,703 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 01:56:02,704 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 130 states [2022-11-18 01:56:02,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:56:02,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 130 interpolants. [2022-11-18 01:56:02,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4290, Invalid=12480, Unknown=0, NotChecked=0, Total=16770 [2022-11-18 01:56:02,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:56:02,707 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:56:02,707 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 130 states, 130 states have (on average 5.769230769230769) internal successors, (750), 130 states have internal predecessors, (750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:56:02,707 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:56:02,708 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:56:02,708 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:56:02,708 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:56:02,708 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:56:02,708 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-11-18 01:56:02,708 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2022-11-18 01:56:02,708 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 93 states. [2022-11-18 01:56:02,708 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:56:18,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:56:18,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:56:18,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:56:18,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:56:18,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:56:18,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-18 01:56:18,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-11-18 01:56:18,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2022-11-18 01:56:18,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 123 states. [2022-11-18 01:56:18,996 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (189)] Forceful destruction successful, exit code 0 [2022-11-18 01:56:19,184 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 189 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable342 [2022-11-18 01:56:19,184 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)] === [2022-11-18 01:56:19,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:56:19,184 INFO L85 PathProgramCache]: Analyzing trace with hash 1453952849, now seen corresponding path program 1 times [2022-11-18 01:56:19,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:56:19,185 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1294424543] [2022-11-18 01:56:19,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:56:19,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:56:19,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 01:56:19,275 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 01:56:19,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 01:56:19,437 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 01:56:19,437 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-18 01:56:19,437 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 7 remaining) [2022-11-18 01:56:19,437 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 7 remaining) [2022-11-18 01:56:19,437 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 7 remaining) [2022-11-18 01:56:19,437 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 7 remaining) [2022-11-18 01:56:19,437 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 7 remaining) [2022-11-18 01:56:19,437 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (1 of 7 remaining) [2022-11-18 01:56:19,437 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK (0 of 7 remaining) [2022-11-18 01:56:19,438 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable343 [2022-11-18 01:56:19,442 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 01:56:19,442 WARN L233 ceAbstractionStarter]: 40 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-18 01:56:19,442 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 41 thread instances. [2022-11-18 01:56:19,542 INFO L144 ThreadInstanceAdder]: Constructed 41 joinOtherThreadTransitions. [2022-11-18 01:56:19,549 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 01:56:19,549 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-11-18 01:56:19,549 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 [2022-11-18 01:56:19,552 INFO L229 MonitoredProcess]: Starting monitored process 190 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-11-18 01:56:19,558 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (190)] Waiting until timeout for monitored process [2022-11-18 01:56:19,561 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-11-18 01:56:19,561 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2022-11-18 01:56:19,561 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;@38e98ff3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 01:56:19,562 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-11-18 01:56:19,587 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)] === [2022-11-18 01:56:19,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:56:19,587 INFO L85 PathProgramCache]: Analyzing trace with hash 1747033394, now seen corresponding path program 1 times [2022-11-18 01:56:19,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:56:19,588 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1424913636] [2022-11-18 01:56:19,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:56:19,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:56:19,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:56:19,620 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:56:19,620 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:56:19,620 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1424913636] [2022-11-18 01:56:19,620 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1424913636] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 01:56:19,620 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 01:56:19,620 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 01:56:19,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1333981486] [2022-11-18 01:56:19,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 01:56:19,621 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-18 01:56:19,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:56:19,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-18 01:56:19,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-18 01:56:19,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:56:19,622 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:56:19,622 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 27.5) internal successors, (55), 2 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:56:19,622 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:56:19,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:56:19,623 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable344 [2022-11-18 01:56:19,623 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)] === [2022-11-18 01:56:19,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:56:19,623 INFO L85 PathProgramCache]: Analyzing trace with hash -1040382093, now seen corresponding path program 1 times [2022-11-18 01:56:19,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:56:19,624 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1394739464] [2022-11-18 01:56:19,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:56:19,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:56:19,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:56:19,666 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:56:19,666 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:56:19,666 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1394739464] [2022-11-18 01:56:19,666 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1394739464] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 01:56:19,666 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 01:56:19,666 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 01:56:19,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1170097141] [2022-11-18 01:56:19,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 01:56:19,667 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 01:56:19,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:56:19,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 01:56:19,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 01:56:19,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:56:19,667 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:56:19,667 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:56:19,668 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:56:19,668 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:56:20,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:56:20,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:56:20,301 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable345 [2022-11-18 01:56:20,301 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)] === [2022-11-18 01:56:20,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:56:20,301 INFO L85 PathProgramCache]: Analyzing trace with hash 1100933184, now seen corresponding path program 1 times [2022-11-18 01:56:20,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:56:20,302 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1174837890] [2022-11-18 01:56:20,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:56:20,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:56:20,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:56:20,367 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:56:20,367 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:56:20,367 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1174837890] [2022-11-18 01:56:20,367 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1174837890] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 01:56:20,368 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1913599907] [2022-11-18 01:56:20,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:56:20,368 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:56:20,368 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 [2022-11-18 01:56:20,375 INFO L229 MonitoredProcess]: Starting monitored process 191 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 01:56:20,381 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (191)] Waiting until timeout for monitored process [2022-11-18 01:56:22,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:56:22,412 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 01:56:22,412 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 01:56:22,433 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:56:22,433 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 01:56:22,462 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 01:56:22,462 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1913599907] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 01:56:22,462 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 01:56:22,462 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-11-18 01:56:22,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109583738] [2022-11-18 01:56:22,462 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 01:56:22,463 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-18 01:56:22,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:56:22,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-18 01:56:22,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-18 01:56:22,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:56:22,464 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:56:22,464 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.7) internal successors, (87), 10 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:56:22,464 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:56:22,464 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:56:22,464 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:56:22,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:56:22,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:56:22,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:56:22,820 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (191)] Forceful destruction successful, exit code 0 [2022-11-18 01:56:23,006 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable346,191 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:56:23,006 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)] === [2022-11-18 01:56:23,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:56:23,007 INFO L85 PathProgramCache]: Analyzing trace with hash 1142233181, now seen corresponding path program 1 times [2022-11-18 01:56:23,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:56:23,007 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [781541412] [2022-11-18 01:56:23,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:56:23,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:56:23,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:56:23,085 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-18 01:56:23,085 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:56:23,085 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [781541412] [2022-11-18 01:56:23,085 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [781541412] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 01:56:23,085 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 01:56:23,085 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 01:56:23,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1595717218] [2022-11-18 01:56:23,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 01:56:23,086 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 01:56:23,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:56:23,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 01:56:23,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 01:56:23,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:56:23,087 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:56:23,087 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:56:23,087 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:56:23,087 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:56:23,087 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:56:23,087 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:56:23,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:56:23,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:56:23,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:56:23,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 01:56:23,420 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable347 [2022-11-18 01:56:23,420 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)] === [2022-11-18 01:56:23,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:56:23,420 INFO L85 PathProgramCache]: Analyzing trace with hash 1450606886, now seen corresponding path program 1 times [2022-11-18 01:56:23,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:56:23,420 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [570624627] [2022-11-18 01:56:23,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:56:23,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:56:23,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:56:23,466 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-18 01:56:23,466 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:56:23,466 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [570624627] [2022-11-18 01:56:23,466 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [570624627] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 01:56:23,466 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 01:56:23,466 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 01:56:23,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [632910017] [2022-11-18 01:56:23,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 01:56:23,467 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 01:56:23,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:56:23,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 01:56:23,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 01:56:23,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:56:23,468 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:56:23,468 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:56:23,468 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:56:23,468 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:56:23,468 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:56:23,468 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-11-18 01:56:23,468 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:56:24,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:56:24,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:56:24,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:56:24,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:56:24,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:56:24,008 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable348 [2022-11-18 01:56:24,008 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)] === [2022-11-18 01:56:24,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:56:24,008 INFO L85 PathProgramCache]: Analyzing trace with hash 1485694897, now seen corresponding path program 1 times [2022-11-18 01:56:24,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:56:24,009 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1332672931] [2022-11-18 01:56:24,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:56:24,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:56:24,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:56:24,086 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-18 01:56:24,086 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:56:24,087 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1332672931] [2022-11-18 01:56:24,087 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1332672931] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 01:56:24,087 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [454875371] [2022-11-18 01:56:24,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:56:24,087 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:56:24,087 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 [2022-11-18 01:56:24,091 INFO L229 MonitoredProcess]: Starting monitored process 192 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 01:56:24,093 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (192)] Waiting until timeout for monitored process [2022-11-18 01:56:26,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:56:26,081 INFO L263 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-18 01:56:26,082 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 01:56:26,158 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 01:56:26,158 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 01:56:26,262 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 01:56:26,262 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [454875371] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 01:56:26,262 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 01:56:26,262 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 9, 9] total 19 [2022-11-18 01:56:26,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807300465] [2022-11-18 01:56:26,263 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 01:56:26,263 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-18 01:56:26,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:56:26,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-18 01:56:26,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=263, Unknown=0, NotChecked=0, Total=342 [2022-11-18 01:56:26,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:56:26,264 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:56:26,264 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 11.631578947368421) internal successors, (221), 19 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:56:26,264 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:56:26,264 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:56:26,264 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:56:26,265 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:56:26,265 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:56:26,265 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:56:27,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:56:27,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:56:27,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:56:27,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:56:27,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:56:27,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-18 01:56:27,357 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (192)] Forceful destruction successful, exit code 0 [2022-11-18 01:56:27,546 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable349,192 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:56:27,546 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)] === [2022-11-18 01:56:27,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:56:27,546 INFO L85 PathProgramCache]: Analyzing trace with hash 1734468255, now seen corresponding path program 1 times [2022-11-18 01:56:27,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:56:27,546 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [458390048] [2022-11-18 01:56:27,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:56:27,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:56:27,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:56:27,917 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 217 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 01:56:27,917 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:56:27,917 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [458390048] [2022-11-18 01:56:27,917 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [458390048] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 01:56:27,917 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2112804046] [2022-11-18 01:56:27,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:56:27,918 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:56:27,918 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 [2022-11-18 01:56:27,919 INFO L229 MonitoredProcess]: Starting monitored process 193 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 01:56:27,921 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (193)] Waiting until timeout for monitored process [2022-11-18 01:56:29,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:56:29,943 INFO L263 TraceCheckSpWp]: Trace formula consists of 490 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-18 01:56:29,944 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 01:56:30,037 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 217 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 01:56:30,038 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 01:56:30,338 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 217 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 01:56:30,338 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2112804046] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 01:56:30,338 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 01:56:30,339 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 34 [2022-11-18 01:56:30,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [339827646] [2022-11-18 01:56:30,339 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 01:56:30,339 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-11-18 01:56:30,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:56:30,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-11-18 01:56:30,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2022-11-18 01:56:30,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:56:30,340 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:56:30,340 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 7.9411764705882355) internal successors, (270), 34 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:56:30,340 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:56:30,340 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:56:30,340 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:56:30,340 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:56:30,341 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:56:30,341 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-11-18 01:56:30,341 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:56:32,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:56:32,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:56:32,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:56:32,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:56:32,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:56:32,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-18 01:56:32,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-11-18 01:56:32,577 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (193)] Forceful destruction successful, exit code 0 [2022-11-18 01:56:32,766 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable350,193 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:56:32,766 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)] === [2022-11-18 01:56:32,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:56:32,766 INFO L85 PathProgramCache]: Analyzing trace with hash -624846525, now seen corresponding path program 1 times [2022-11-18 01:56:32,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:56:32,766 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [841635577] [2022-11-18 01:56:32,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:56:32,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:56:32,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:56:33,512 INFO L134 CoverageAnalysis]: Checked inductivity of 1073 backedges. 0 proven. 1065 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 01:56:33,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:56:33,512 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [841635577] [2022-11-18 01:56:33,512 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [841635577] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 01:56:33,513 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1050658656] [2022-11-18 01:56:33,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:56:33,513 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:56:33,513 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 [2022-11-18 01:56:33,515 INFO L229 MonitoredProcess]: Starting monitored process 194 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 01:56:33,517 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (194)] Waiting until timeout for monitored process [2022-11-18 01:56:35,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:56:35,584 INFO L263 TraceCheckSpWp]: Trace formula consists of 698 conjuncts, 32 conjunts are in the unsatisfiable core [2022-11-18 01:56:35,586 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 01:56:35,778 INFO L134 CoverageAnalysis]: Checked inductivity of 1073 backedges. 0 proven. 1065 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 01:56:35,778 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 01:56:36,759 INFO L134 CoverageAnalysis]: Checked inductivity of 1073 backedges. 0 proven. 1065 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 01:56:36,759 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1050658656] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 01:56:36,759 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 01:56:36,759 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33, 33] total 66 [2022-11-18 01:56:36,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1282264719] [2022-11-18 01:56:36,760 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 01:56:36,760 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 66 states [2022-11-18 01:56:36,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 01:56:36,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2022-11-18 01:56:36,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1122, Invalid=3168, Unknown=0, NotChecked=0, Total=4290 [2022-11-18 01:56:36,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:56:36,761 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-18 01:56:36,762 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 66 states, 66 states have (on average 6.515151515151516) internal successors, (430), 66 states have internal predecessors, (430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 01:56:36,762 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:56:36,762 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:56:36,762 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:56:36,762 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:56:36,762 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:56:36,762 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-11-18 01:56:36,762 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2022-11-18 01:56:36,762 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:56:44,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 01:56:44,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:56:44,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 01:56:44,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 01:56:44,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 01:56:44,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-18 01:56:44,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-11-18 01:56:44,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2022-11-18 01:56:44,669 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (194)] Ended with exit code 0 [2022-11-18 01:56:44,857 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable351,194 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:56:44,858 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)] === [2022-11-18 01:56:44,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 01:56:44,858 INFO L85 PathProgramCache]: Analyzing trace with hash -1997322741, now seen corresponding path program 1 times [2022-11-18 01:56:44,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 01:56:44,858 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [719950960] [2022-11-18 01:56:44,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:56:44,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 01:56:44,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 01:56:47,682 INFO L134 CoverageAnalysis]: Checked inductivity of 4689 backedges. 0 proven. 4681 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-18 01:56:47,682 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 01:56:47,683 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [719950960] [2022-11-18 01:56:47,683 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [719950960] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 01:56:47,683 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1929197774] [2022-11-18 01:56:47,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 01:56:47,683 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 01:56:47,683 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 [2022-11-18 01:56:47,684 INFO L229 MonitoredProcess]: Starting monitored process 195 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 01:56:47,686 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70775e0f-385b-483e-ad0a-d1aa65ceed4c/bin/ugemcutter-AnMVkTqH3k/z3 -smt2 -in SMTLIB2_COMPLIANT=true (195)] Waiting until timeout for monitored process