./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/pthread/queue_longer.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 38b53e6a 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_aa479a59-e03a-4fb9-afac-daa3ea972579/bin/ugemcutter-syNpU3ikLH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa479a59-e03a-4fb9-afac-daa3ea972579/bin/ugemcutter-syNpU3ikLH/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa479a59-e03a-4fb9-afac-daa3ea972579/bin/ugemcutter-syNpU3ikLH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa479a59-e03a-4fb9-afac-daa3ea972579/bin/ugemcutter-syNpU3ikLH/config/GemCutterMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread/queue_longer.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa479a59-e03a-4fb9-afac-daa3ea972579/bin/ugemcutter-syNpU3ikLH/config/svcomp-DerefFreeMemtrack-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa479a59-e03a-4fb9-afac-daa3ea972579/bin/ugemcutter-syNpU3ikLH --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 9f874a9872f93f025fac23ebed37f94a1f3b80bd0133ea4d7e298577c4fec427 --- 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-38b53e6 [2022-11-25 18:39:42,817 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 18:39:42,820 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 18:39:42,860 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 18:39:42,864 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 18:39:42,869 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 18:39:42,875 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 18:39:42,880 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 18:39:42,883 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 18:39:42,889 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 18:39:42,891 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 18:39:42,893 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 18:39:42,894 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 18:39:42,897 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 18:39:42,899 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 18:39:42,902 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 18:39:42,905 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 18:39:42,906 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 18:39:42,908 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 18:39:42,915 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 18:39:42,918 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 18:39:42,920 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 18:39:42,922 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 18:39:42,923 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 18:39:42,933 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 18:39:42,935 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 18:39:42,935 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 18:39:42,936 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 18:39:42,938 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 18:39:42,939 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 18:39:42,940 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 18:39:42,941 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 18:39:42,942 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 18:39:42,943 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 18:39:42,943 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 18:39:42,944 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 18:39:42,944 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 18:39:42,945 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 18:39:42,945 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 18:39:42,946 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 18:39:42,946 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 18:39:42,947 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa479a59-e03a-4fb9-afac-daa3ea972579/bin/ugemcutter-syNpU3ikLH/config/svcomp-DerefFreeMemtrack-32bit-GemCutter_Default.epf [2022-11-25 18:39:42,972 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 18:39:42,972 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 18:39:42,973 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 18:39:42,973 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 18:39:42,974 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 18:39:42,974 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 18:39:42,975 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 18:39:42,975 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 18:39:42,975 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 18:39:42,976 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 18:39:42,976 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 18:39:42,976 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 18:39:42,976 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 18:39:42,976 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 18:39:42,977 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 18:39:42,977 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-25 18:39:42,977 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-25 18:39:42,977 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-25 18:39:42,977 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 18:39:42,978 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-25 18:39:42,978 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 18:39:42,978 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 18:39:42,978 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 18:39:42,979 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 18:39:42,979 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 18:39:42,979 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 18:39:42,979 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 18:39:42,980 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 18:39:42,980 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 18:39:42,980 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 18:39:42,980 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-25 18:39:42,980 INFO L138 SettingsManager]: * Abstraction used for commutativity in POR=VARIABLES_GLOBAL [2022-11-25 18:39:42,981 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-11-25 18:39:42,981 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2022-11-25 18:39:42,981 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2022-11-25 18:39:42,981 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_aa479a59-e03a-4fb9-afac-daa3ea972579/bin/ugemcutter-syNpU3ikLH/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa479a59-e03a-4fb9-afac-daa3ea972579/bin/ugemcutter-syNpU3ikLH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9f874a9872f93f025fac23ebed37f94a1f3b80bd0133ea4d7e298577c4fec427 [2022-11-25 18:39:43,281 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 18:39:43,312 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 18:39:43,316 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 18:39:43,318 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 18:39:43,318 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 18:39:43,320 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa479a59-e03a-4fb9-afac-daa3ea972579/bin/ugemcutter-syNpU3ikLH/../../sv-benchmarks/c/pthread/queue_longer.i [2022-11-25 18:39:46,889 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 18:39:47,328 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 18:39:47,329 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa479a59-e03a-4fb9-afac-daa3ea972579/sv-benchmarks/c/pthread/queue_longer.i [2022-11-25 18:39:47,351 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa479a59-e03a-4fb9-afac-daa3ea972579/bin/ugemcutter-syNpU3ikLH/data/bc55532b9/e928c1f9479649bc9af5353859fa6e5f/FLAG07e16df9b [2022-11-25 18:39:47,383 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa479a59-e03a-4fb9-afac-daa3ea972579/bin/ugemcutter-syNpU3ikLH/data/bc55532b9/e928c1f9479649bc9af5353859fa6e5f [2022-11-25 18:39:47,386 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 18:39:47,388 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 18:39:47,390 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 18:39:47,390 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 18:39:47,400 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 18:39:47,401 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:39:47" (1/1) ... [2022-11-25 18:39:47,403 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@704def71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:39:47, skipping insertion in model container [2022-11-25 18:39:47,403 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:39:47" (1/1) ... [2022-11-25 18:39:47,413 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 18:39:47,497 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 18:39:48,127 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa479a59-e03a-4fb9-afac-daa3ea972579/sv-benchmarks/c/pthread/queue_longer.i[43296,43309] [2022-11-25 18:39:48,143 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa479a59-e03a-4fb9-afac-daa3ea972579/sv-benchmarks/c/pthread/queue_longer.i[43503,43516] [2022-11-25 18:39:48,157 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa479a59-e03a-4fb9-afac-daa3ea972579/sv-benchmarks/c/pthread/queue_longer.i[43783,43796] [2022-11-25 18:39:48,163 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 18:39:48,178 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 18:39:48,256 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa479a59-e03a-4fb9-afac-daa3ea972579/sv-benchmarks/c/pthread/queue_longer.i[43296,43309] [2022-11-25 18:39:48,258 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa479a59-e03a-4fb9-afac-daa3ea972579/sv-benchmarks/c/pthread/queue_longer.i[43503,43516] [2022-11-25 18:39:48,261 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa479a59-e03a-4fb9-afac-daa3ea972579/sv-benchmarks/c/pthread/queue_longer.i[43783,43796] [2022-11-25 18:39:48,265 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 18:39:48,336 INFO L208 MainTranslator]: Completed translation [2022-11-25 18:39:48,337 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:39:48 WrapperNode [2022-11-25 18:39:48,337 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 18:39:48,339 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 18:39:48,339 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 18:39:48,339 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 18:39:48,349 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:39:48" (1/1) ... [2022-11-25 18:39:48,380 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:39:48" (1/1) ... [2022-11-25 18:39:48,456 INFO L138 Inliner]: procedures = 274, calls = 60, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 241 [2022-11-25 18:39:48,458 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 18:39:48,459 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 18:39:48,459 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 18:39:48,460 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 18:39:48,473 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:39:48" (1/1) ... [2022-11-25 18:39:48,473 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:39:48" (1/1) ... [2022-11-25 18:39:48,496 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:39:48" (1/1) ... [2022-11-25 18:39:48,506 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:39:48" (1/1) ... [2022-11-25 18:39:48,534 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:39:48" (1/1) ... [2022-11-25 18:39:48,539 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:39:48" (1/1) ... [2022-11-25 18:39:48,545 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:39:48" (1/1) ... [2022-11-25 18:39:48,558 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:39:48" (1/1) ... [2022-11-25 18:39:48,562 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 18:39:48,567 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 18:39:48,567 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 18:39:48,567 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 18:39:48,568 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:39:48" (1/1) ... [2022-11-25 18:39:48,577 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 18:39:48,595 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa479a59-e03a-4fb9-afac-daa3ea972579/bin/ugemcutter-syNpU3ikLH/z3 [2022-11-25 18:39:48,616 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa479a59-e03a-4fb9-afac-daa3ea972579/bin/ugemcutter-syNpU3ikLH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 18:39:48,646 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa479a59-e03a-4fb9-afac-daa3ea972579/bin/ugemcutter-syNpU3ikLH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 18:39:48,676 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2022-11-25 18:39:48,676 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2022-11-25 18:39:48,677 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2022-11-25 18:39:48,677 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2022-11-25 18:39:48,677 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 18:39:48,677 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 18:39:48,678 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-25 18:39:48,678 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 18:39:48,678 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-25 18:39:48,678 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 18:39:48,679 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 18:39:48,679 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 18:39:48,679 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 18:39:48,681 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-25 18:39:49,047 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 18:39:49,051 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 18:39:50,055 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 18:39:50,070 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 18:39:50,070 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-25 18:39:50,074 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:39:50 BoogieIcfgContainer [2022-11-25 18:39:50,075 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 18:39:50,078 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 18:39:50,080 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 18:39:50,087 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 18:39:50,087 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 06:39:47" (1/3) ... [2022-11-25 18:39:50,090 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e71b442 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:39:50, skipping insertion in model container [2022-11-25 18:39:50,090 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:39:48" (2/3) ... [2022-11-25 18:39:50,091 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e71b442 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:39:50, skipping insertion in model container [2022-11-25 18:39:50,091 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:39:50" (3/3) ... [2022-11-25 18:39:50,093 INFO L112 eAbstractionObserver]: Analyzing ICFG queue_longer.i [2022-11-25 18:39:50,118 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 18:39:50,119 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 80 error locations. [2022-11-25 18:39:50,119 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-25 18:39:50,362 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-25 18:39:50,455 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 18:39:50,457 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-11-25 18:39:50,457 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa479a59-e03a-4fb9-afac-daa3ea972579/bin/ugemcutter-syNpU3ikLH/z3 [2022-11-25 18:39:50,462 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa479a59-e03a-4fb9-afac-daa3ea972579/bin/ugemcutter-syNpU3ikLH/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-11-25 18:39:50,468 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa479a59-e03a-4fb9-afac-daa3ea972579/bin/ugemcutter-syNpU3ikLH/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2022-11-25 18:39:50,549 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-11-25 18:39:50,574 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == t1Thread1of1ForFork1 ======== [2022-11-25 18:39:50,582 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;@7318c7ea, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 18:39:50,583 INFO L358 AbstractCegarLoop]: Starting to check reachability of 41 error locations. [2022-11-25 18:39:51,300 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t1Err40ASSERT_VIOLATIONMEMORY_LEAK === [t1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 38 more)] === [2022-11-25 18:39:51,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:39:51,309 INFO L85 PathProgramCache]: Analyzing trace with hash -2087467365, now seen corresponding path program 1 times [2022-11-25 18:39:51,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:39:51,322 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [367344326] [2022-11-25 18:39:51,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:39:51,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:39:51,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:39:51,748 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:39:51,749 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:39:51,749 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [367344326] [2022-11-25 18:39:51,750 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [367344326] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:39:51,750 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:39:51,751 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 18:39:51,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548105233] [2022-11-25 18:39:51,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:39:51,761 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-25 18:39:51,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:39:51,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-25 18:39:51,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 18:39:51,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:39:51,808 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-25 18:39:51,809 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 48.5) internal successors, (97), 2 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:39:51,809 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:39:51,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:39:51,935 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 18:39:51,936 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t1Err40ASSERT_VIOLATIONMEMORY_LEAK === [t1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 38 more)] === [2022-11-25 18:39:51,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:39:51,937 INFO L85 PathProgramCache]: Analyzing trace with hash -1139615726, now seen corresponding path program 1 times [2022-11-25 18:39:51,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:39:51,938 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [648513063] [2022-11-25 18:39:51,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:39:51,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:39:52,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:39:52,175 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:39:52,175 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:39:52,175 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [648513063] [2022-11-25 18:39:52,176 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [648513063] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:39:52,176 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:39:52,176 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 18:39:52,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840380956] [2022-11-25 18:39:52,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:39:52,178 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 18:39:52,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:39:52,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 18:39:52,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 18:39:52,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:39:52,181 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-25 18:39:52,181 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:39:52,182 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:39:52,182 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:39:52,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:39:52,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 18:39:52,283 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 18:39:52,283 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t1Err40ASSERT_VIOLATIONMEMORY_LEAK === [t1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 38 more)] === [2022-11-25 18:39:52,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:39:52,284 INFO L85 PathProgramCache]: Analyzing trace with hash -87893663, now seen corresponding path program 1 times [2022-11-25 18:39:52,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:39:52,284 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1654382975] [2022-11-25 18:39:52,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:39:52,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:39:52,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:39:57,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:39:57,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:39:57,868 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1654382975] [2022-11-25 18:39:57,868 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1654382975] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:39:57,868 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:39:57,868 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-25 18:39:57,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847545806] [2022-11-25 18:39:57,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:39:57,869 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-25 18:39:57,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:39:57,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-25 18:39:57,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=211, Unknown=0, NotChecked=0, Total=272 [2022-11-25 18:39:57,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:39:57,872 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-25 18:39:57,873 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 6.647058823529412) internal successors, (113), 17 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:39:57,873 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:39:57,873 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-25 18:39:57,873 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:40:00,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:40:00,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 18:40:00,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-25 18:40:00,567 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-25 18:40:00,571 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t1Err40ASSERT_VIOLATIONMEMORY_LEAK === [t1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 38 more)] === [2022-11-25 18:40:00,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:40:00,572 INFO L85 PathProgramCache]: Analyzing trace with hash -1832890854, now seen corresponding path program 1 times [2022-11-25 18:40:00,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:40:00,572 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [797510070] [2022-11-25 18:40:00,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:40:00,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:40:00,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:40:26,694 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:40:26,694 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:40:26,695 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [797510070] [2022-11-25 18:40:26,695 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [797510070] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:40:26,695 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:40:26,695 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-11-25 18:40:26,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1318780841] [2022-11-25 18:40:26,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:40:26,696 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-11-25 18:40:26,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:40:26,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-11-25 18:40:26,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=715, Unknown=0, NotChecked=0, Total=812 [2022-11-25 18:40:26,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:40:26,700 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-25 18:40:26,701 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 4.0344827586206895) internal successors, (117), 29 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:40:26,701 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:40:26,701 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-25 18:40:26,701 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2022-11-25 18:40:26,702 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:41:03,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:41:03,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 18:41:03,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-25 18:41:03,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-11-25 18:41:03,284 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-25 18:41:03,285 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t1Err40ASSERT_VIOLATIONMEMORY_LEAK === [t1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 38 more)] === [2022-11-25 18:41:03,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:41:03,285 INFO L85 PathProgramCache]: Analyzing trace with hash 1705182621, now seen corresponding path program 1 times [2022-11-25 18:41:03,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:41:03,286 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1426621152] [2022-11-25 18:41:03,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:41:03,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:41:03,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:41:03,371 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:41:03,372 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:41:03,372 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1426621152] [2022-11-25 18:41:03,372 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1426621152] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:41:03,372 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:41:03,373 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 18:41:03,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [632602657] [2022-11-25 18:41:03,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:41:03,374 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 18:41:03,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:41:03,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 18:41:03,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 18:41:03,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:41:03,377 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-25 18:41:03,377 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.0) internal successors, (116), 4 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:41:03,378 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:41:03,378 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-25 18:41:03,379 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2022-11-25 18:41:03,379 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2022-11-25 18:41:03,379 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:41:13,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:41:13,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 18:41:13,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-25 18:41:13,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-11-25 18:41:13,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 18:41:13,214 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-25 18:41:13,215 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t1Err24REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [t1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 38 more)] === [2022-11-25 18:41:13,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:41:13,215 INFO L85 PathProgramCache]: Analyzing trace with hash -899339764, now seen corresponding path program 1 times [2022-11-25 18:41:13,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:41:13,216 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [149252850] [2022-11-25 18:41:13,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:41:13,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:41:13,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:41:13,326 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-25 18:41:13,326 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:41:13,327 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [149252850] [2022-11-25 18:41:13,327 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [149252850] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:41:13,327 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:41:13,327 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 18:41:13,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1494129477] [2022-11-25 18:41:13,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:41:13,329 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 18:41:13,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:41:13,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 18:41:13,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 18:41:13,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:41:13,335 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-25 18:41:13,337 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 78.0) internal successors, (156), 3 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:41:13,337 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:41:13,337 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-25 18:41:13,338 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2022-11-25 18:41:13,339 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2022-11-25 18:41:13,339 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-25 18:41:13,339 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:41:13,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:41:13,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 18:41:13,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-25 18:41:13,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-11-25 18:41:13,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 18:41:13,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:41:13,626 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-25 18:41:13,627 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t1Err25REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [t1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 38 more)] === [2022-11-25 18:41:13,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:41:13,628 INFO L85 PathProgramCache]: Analyzing trace with hash -899339763, now seen corresponding path program 1 times [2022-11-25 18:41:13,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:41:13,628 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [967789791] [2022-11-25 18:41:13,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:41:13,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:41:13,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:41:13,818 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:41:13,822 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:41:13,822 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [967789791] [2022-11-25 18:41:13,823 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [967789791] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:41:13,823 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:41:13,823 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 18:41:13,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [172908795] [2022-11-25 18:41:13,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:41:13,826 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 18:41:13,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:41:13,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 18:41:13,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 18:41:13,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:41:13,837 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-25 18:41:13,838 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.333333333333336) internal successors, (169), 3 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:41:13,838 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:41:13,838 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-25 18:41:13,838 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2022-11-25 18:41:13,839 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2022-11-25 18:41:13,839 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-25 18:41:13,839 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:41:13,839 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:41:15,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:41:15,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 18:41:15,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-25 18:41:15,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-11-25 18:41:15,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 18:41:15,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:41:15,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:41:15,054 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-25 18:41:15,054 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t1Err38REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [t1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 38 more)] === [2022-11-25 18:41:15,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:41:15,055 INFO L85 PathProgramCache]: Analyzing trace with hash -979087836, now seen corresponding path program 1 times [2022-11-25 18:41:15,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:41:15,055 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1962207353] [2022-11-25 18:41:15,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:41:15,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:41:15,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:41:15,368 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 73 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2022-11-25 18:41:15,368 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:41:15,369 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1962207353] [2022-11-25 18:41:15,369 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1962207353] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:41:15,369 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:41:15,369 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 18:41:15,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [313541881] [2022-11-25 18:41:15,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:41:15,370 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 18:41:15,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:41:15,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 18:41:15,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 18:41:15,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:41:15,373 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-25 18:41:15,373 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 82.0) internal successors, (246), 3 states have internal predecessors, (246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:41:15,374 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:41:15,374 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-25 18:41:15,374 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2022-11-25 18:41:15,374 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2022-11-25 18:41:15,374 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-25 18:41:15,374 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:41:15,375 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:41:15,375 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:41:15,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:41:15,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 18:41:15,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-25 18:41:15,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-11-25 18:41:15,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 18:41:15,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:41:15,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:41:15,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:41:15,497 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-25 18:41:15,497 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting t1Err38REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [t1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 38 more)] === [2022-11-25 18:41:15,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:41:15,498 INFO L85 PathProgramCache]: Analyzing trace with hash 1471727236, now seen corresponding path program 1 times [2022-11-25 18:41:15,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:41:15,500 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [751497027] [2022-11-25 18:41:15,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:41:15,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:41:15,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:41:15,662 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2022-11-25 18:41:15,664 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:41:15,664 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [751497027] [2022-11-25 18:41:15,664 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [751497027] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:41:15,665 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:41:15,665 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 18:41:15,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [910471604] [2022-11-25 18:41:15,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:41:15,666 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 18:41:15,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:41:15,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 18:41:15,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 18:41:15,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:41:15,670 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-25 18:41:15,670 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 101.0) internal successors, (202), 3 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:41:15,670 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:41:15,671 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-25 18:41:15,671 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2022-11-25 18:41:15,671 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2022-11-25 18:41:15,671 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-25 18:41:15,671 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:41:15,671 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:41:15,672 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:41:15,672 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:41:15,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:41:15,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 18:41:15,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-25 18:41:15,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-11-25 18:41:15,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 18:41:15,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:41:15,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:41:15,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:41:15,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:41:15,857 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-25 18:41:15,858 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting t1Err39REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [t1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 38 more)] === [2022-11-25 18:41:15,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:41:15,858 INFO L85 PathProgramCache]: Analyzing trace with hash 1471727237, now seen corresponding path program 1 times [2022-11-25 18:41:15,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:41:15,859 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [38824723] [2022-11-25 18:41:15,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:41:15,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:41:15,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:41:19,610 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-25 18:41:19,611 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:41:19,611 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [38824723] [2022-11-25 18:41:19,611 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [38824723] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:41:19,611 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:41:19,611 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2022-11-25 18:41:19,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [771412898] [2022-11-25 18:41:19,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:41:19,612 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-11-25 18:41:19,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:41:19,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-11-25 18:41:19,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=588, Unknown=0, NotChecked=0, Total=702 [2022-11-25 18:41:19,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:41:19,620 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-25 18:41:19,620 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 8.333333333333334) internal successors, (225), 27 states have internal predecessors, (225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:41:19,620 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:41:19,620 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-25 18:41:19,622 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2022-11-25 18:41:19,623 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2022-11-25 18:41:19,623 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-25 18:41:19,623 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:41:19,623 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:41:19,623 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:41:19,623 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:41:19,624 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:41:22,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:41:22,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 18:41:22,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-25 18:41:22,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-11-25 18:41:22,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 18:41:22,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:41:22,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:41:22,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:41:22,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:41:22,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-11-25 18:41:22,609 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-25 18:41:22,609 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting t1Err39REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [t1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 38 more)] === [2022-11-25 18:41:22,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:41:22,610 INFO L85 PathProgramCache]: Analyzing trace with hash 1218922348, now seen corresponding path program 1 times [2022-11-25 18:41:22,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:41:22,610 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [742724908] [2022-11-25 18:41:22,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:41:22,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:41:22,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:41:29,376 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 28 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:41:29,376 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:41:29,377 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [742724908] [2022-11-25 18:41:29,377 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [742724908] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 18:41:29,377 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [115273623] [2022-11-25 18:41:29,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:41:29,377 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 18:41:29,378 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa479a59-e03a-4fb9-afac-daa3ea972579/bin/ugemcutter-syNpU3ikLH/z3 [2022-11-25 18:41:29,406 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa479a59-e03a-4fb9-afac-daa3ea972579/bin/ugemcutter-syNpU3ikLH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 18:41:29,426 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa479a59-e03a-4fb9-afac-daa3ea972579/bin/ugemcutter-syNpU3ikLH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-25 18:41:29,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:41:29,661 INFO L263 TraceCheckSpWp]: Trace formula consists of 693 conjuncts, 21 conjunts are in the unsatisfiable core [2022-11-25 18:41:29,673 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 18:41:29,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:41:29,928 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2022-11-25 18:41:29,947 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-25 18:41:29,948 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-11-25 18:41:29,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:41:29,992 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2022-11-25 18:41:31,967 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:41:31,967 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 18:41:39,314 WARN L233 SmtUtils]: Spent 6.09s on a formula simplification that was a NOOP. DAG size: 24 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 18:41:39,666 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-25 18:41:39,667 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 48 treesize of output 52 [2022-11-25 18:41:39,693 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-25 18:41:39,694 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 46 treesize of output 64 [2022-11-25 18:41:39,867 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:41:39,868 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [115273623] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 18:41:39,868 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 18:41:39,868 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [35, 7, 7] total 47 [2022-11-25 18:41:39,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1029903550] [2022-11-25 18:41:39,869 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 18:41:39,870 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 47 states [2022-11-25 18:41:39,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:41:39,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2022-11-25 18:41:39,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=218, Invalid=1944, Unknown=0, NotChecked=0, Total=2162 [2022-11-25 18:41:39,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:41:39,875 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-25 18:41:39,875 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 47 states, 47 states have (on average 14.425531914893616) internal successors, (678), 47 states have internal predecessors, (678), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:41:39,876 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:41:39,876 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-25 18:41:39,876 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2022-11-25 18:41:39,876 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2022-11-25 18:41:39,876 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-25 18:41:39,876 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:41:39,877 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:41:39,877 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:41:39,877 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:41:39,877 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2022-11-25 18:41:39,877 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:41:48,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:41:48,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 18:41:48,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-25 18:41:48,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-11-25 18:41:48,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 18:41:48,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:41:48,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:41:48,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:41:48,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:41:48,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-11-25 18:41:48,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-11-25 18:41:48,024 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa479a59-e03a-4fb9-afac-daa3ea972579/bin/ugemcutter-syNpU3ikLH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-25 18:41:48,213 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa479a59-e03a-4fb9-afac-daa3ea972579/bin/ugemcutter-syNpU3ikLH/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-11-25 18:41:48,214 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting t1Err39REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [t1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 38 more)] === [2022-11-25 18:41:48,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:41:48,215 INFO L85 PathProgramCache]: Analyzing trace with hash 1581300533, now seen corresponding path program 1 times [2022-11-25 18:41:48,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:41:48,215 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [951500068] [2022-11-25 18:41:48,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:41:48,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:41:48,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:41:54,163 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 6 proven. 37 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-25 18:41:54,164 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:41:54,164 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [951500068] [2022-11-25 18:41:54,164 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [951500068] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 18:41:54,164 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [100424665] [2022-11-25 18:41:54,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:41:54,164 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 18:41:54,164 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa479a59-e03a-4fb9-afac-daa3ea972579/bin/ugemcutter-syNpU3ikLH/z3 [2022-11-25 18:41:54,165 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa479a59-e03a-4fb9-afac-daa3ea972579/bin/ugemcutter-syNpU3ikLH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 18:41:54,167 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa479a59-e03a-4fb9-afac-daa3ea972579/bin/ugemcutter-syNpU3ikLH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-25 18:41:54,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:41:54,427 INFO L263 TraceCheckSpWp]: Trace formula consists of 744 conjuncts, 29 conjunts are in the unsatisfiable core [2022-11-25 18:41:54,451 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 18:41:54,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:41:54,671 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2022-11-25 18:41:54,696 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-25 18:41:54,697 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-11-25 18:41:54,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:41:54,714 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2022-11-25 18:41:57,197 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 0 proven. 61 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:41:57,197 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 18:42:01,073 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-25 18:42:01,073 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 48 treesize of output 52 [2022-11-25 18:42:01,099 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-25 18:42:01,100 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 46 treesize of output 64 [2022-11-25 18:42:01,228 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 0 proven. 61 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:42:01,229 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [100424665] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 18:42:01,229 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 18:42:01,229 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [36, 11, 11] total 56 [2022-11-25 18:42:01,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [701909937] [2022-11-25 18:42:01,230 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 18:42:01,231 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 56 states [2022-11-25 18:42:01,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:42:01,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 56 interpolants. [2022-11-25 18:42:01,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=291, Invalid=2789, Unknown=0, NotChecked=0, Total=3080 [2022-11-25 18:42:01,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:42:01,239 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-25 18:42:01,240 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 56 states, 56 states have (on average 12.946428571428571) internal successors, (725), 56 states have internal predecessors, (725), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:42:01,240 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:42:01,240 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-25 18:42:01,240 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2022-11-25 18:42:01,240 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2022-11-25 18:42:01,240 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-25 18:42:01,241 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:42:01,241 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:42:01,241 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:42:01,241 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:42:01,241 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2022-11-25 18:42:01,241 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 46 states. [2022-11-25 18:42:01,241 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:42:11,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:42:11,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 18:42:11,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-25 18:42:11,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-11-25 18:42:11,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 18:42:11,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:42:11,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:42:11,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:42:11,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:42:11,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-11-25 18:42:11,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-11-25 18:42:11,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2022-11-25 18:42:11,837 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa479a59-e03a-4fb9-afac-daa3ea972579/bin/ugemcutter-syNpU3ikLH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-25 18:42:12,037 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa479a59-e03a-4fb9-afac-daa3ea972579/bin/ugemcutter-syNpU3ikLH/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 18:42:12,037 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting t1Err33REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [t1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 38 more)] === [2022-11-25 18:42:12,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:42:12,038 INFO L85 PathProgramCache]: Analyzing trace with hash 1049465970, now seen corresponding path program 1 times [2022-11-25 18:42:12,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:42:12,038 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [391711045] [2022-11-25 18:42:12,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:42:12,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:42:12,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:42:12,379 INFO L134 CoverageAnalysis]: Checked inductivity of 360 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 332 trivial. 0 not checked. [2022-11-25 18:42:12,379 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:42:12,380 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [391711045] [2022-11-25 18:42:12,380 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [391711045] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 18:42:12,380 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1382952033] [2022-11-25 18:42:12,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:42:12,380 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 18:42:12,381 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa479a59-e03a-4fb9-afac-daa3ea972579/bin/ugemcutter-syNpU3ikLH/z3 [2022-11-25 18:42:12,381 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa479a59-e03a-4fb9-afac-daa3ea972579/bin/ugemcutter-syNpU3ikLH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 18:42:12,384 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa479a59-e03a-4fb9-afac-daa3ea972579/bin/ugemcutter-syNpU3ikLH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-25 18:42:12,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:42:12,696 INFO L263 TraceCheckSpWp]: Trace formula consists of 1034 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-25 18:42:12,702 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 18:42:12,773 INFO L134 CoverageAnalysis]: Checked inductivity of 360 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 342 trivial. 0 not checked. [2022-11-25 18:42:12,774 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 18:42:12,774 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1382952033] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:42:12,774 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 18:42:12,775 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2022-11-25 18:42:12,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [367356205] [2022-11-25 18:42:12,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:42:12,781 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 18:42:12,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:42:12,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 18:42:12,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-25 18:42:12,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:42:12,784 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-25 18:42:12,784 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 114.0) internal successors, (228), 3 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:42:12,785 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:42:12,785 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-25 18:42:12,785 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2022-11-25 18:42:12,785 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2022-11-25 18:42:12,785 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-25 18:42:12,787 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:42:12,788 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:42:12,788 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:42:12,788 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:42:12,788 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2022-11-25 18:42:12,788 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 46 states. [2022-11-25 18:42:12,789 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 61 states. [2022-11-25 18:42:12,789 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:42:13,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:42:13,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 18:42:13,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-25 18:42:13,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-11-25 18:42:13,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 18:42:13,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:42:13,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:42:13,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:42:13,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:42:13,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-11-25 18:42:13,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-11-25 18:42:13,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2022-11-25 18:42:13,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:42:13,035 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa479a59-e03a-4fb9-afac-daa3ea972579/bin/ugemcutter-syNpU3ikLH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-25 18:42:13,227 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa479a59-e03a-4fb9-afac-daa3ea972579/bin/ugemcutter-syNpU3ikLH/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 18:42:13,228 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting t1Err29REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [t1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 38 more)] === [2022-11-25 18:42:13,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:42:13,228 INFO L85 PathProgramCache]: Analyzing trace with hash -516235252, now seen corresponding path program 1 times [2022-11-25 18:42:13,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:42:13,229 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [961035917] [2022-11-25 18:42:13,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:42:13,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:42:13,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:42:13,501 INFO L134 CoverageAnalysis]: Checked inductivity of 352 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 332 trivial. 0 not checked. [2022-11-25 18:42:13,501 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:42:13,502 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [961035917] [2022-11-25 18:42:13,502 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [961035917] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 18:42:13,502 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2145288627] [2022-11-25 18:42:13,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:42:13,502 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 18:42:13,503 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa479a59-e03a-4fb9-afac-daa3ea972579/bin/ugemcutter-syNpU3ikLH/z3 [2022-11-25 18:42:13,507 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa479a59-e03a-4fb9-afac-daa3ea972579/bin/ugemcutter-syNpU3ikLH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 18:42:13,518 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa479a59-e03a-4fb9-afac-daa3ea972579/bin/ugemcutter-syNpU3ikLH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-25 18:42:13,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:42:13,811 INFO L263 TraceCheckSpWp]: Trace formula consists of 1015 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-25 18:42:13,816 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 18:42:13,850 INFO L134 CoverageAnalysis]: Checked inductivity of 352 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 348 trivial. 0 not checked. [2022-11-25 18:42:13,850 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 18:42:13,851 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2145288627] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:42:13,851 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 18:42:13,851 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2022-11-25 18:42:13,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1170455243] [2022-11-25 18:42:13,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:42:13,852 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 18:42:13,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:42:13,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 18:42:13,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-25 18:42:13,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:42:13,855 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-25 18:42:13,855 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 109.5) internal successors, (219), 3 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:42:13,855 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:42:13,855 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-25 18:42:13,855 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2022-11-25 18:42:13,856 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2022-11-25 18:42:13,856 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-25 18:42:13,856 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:42:13,856 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:42:13,856 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:42:13,856 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:42:13,856 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2022-11-25 18:42:13,857 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 46 states. [2022-11-25 18:42:13,857 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 61 states. [2022-11-25 18:42:13,857 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:42:13,857 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:42:14,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:42:14,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 18:42:14,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-25 18:42:14,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-11-25 18:42:14,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 18:42:14,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:42:14,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:42:14,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:42:14,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:42:14,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-11-25 18:42:14,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-11-25 18:42:14,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2022-11-25 18:42:14,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:42:14,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:42:14,076 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa479a59-e03a-4fb9-afac-daa3ea972579/bin/ugemcutter-syNpU3ikLH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-25 18:42:14,270 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa479a59-e03a-4fb9-afac-daa3ea972579/bin/ugemcutter-syNpU3ikLH/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 18:42:14,271 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting t1Err27REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [t1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 38 more)] === [2022-11-25 18:42:14,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:42:14,271 INFO L85 PathProgramCache]: Analyzing trace with hash 620691147, now seen corresponding path program 1 times [2022-11-25 18:42:14,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:42:14,272 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1342317698] [2022-11-25 18:42:14,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:42:14,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:42:14,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:42:15,120 INFO L134 CoverageAnalysis]: Checked inductivity of 348 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 332 trivial. 0 not checked. [2022-11-25 18:42:15,120 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:42:15,121 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1342317698] [2022-11-25 18:42:15,121 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1342317698] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 18:42:15,121 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [249258674] [2022-11-25 18:42:15,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:42:15,121 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 18:42:15,121 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa479a59-e03a-4fb9-afac-daa3ea972579/bin/ugemcutter-syNpU3ikLH/z3 [2022-11-25 18:42:15,123 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa479a59-e03a-4fb9-afac-daa3ea972579/bin/ugemcutter-syNpU3ikLH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 18:42:15,144 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa479a59-e03a-4fb9-afac-daa3ea972579/bin/ugemcutter-syNpU3ikLH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-25 18:42:15,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:42:15,450 INFO L263 TraceCheckSpWp]: Trace formula consists of 1007 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-25 18:42:15,457 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 18:42:16,965 INFO L134 CoverageAnalysis]: Checked inductivity of 348 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 332 trivial. 0 not checked. [2022-11-25 18:42:16,965 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 18:42:18,598 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-25 18:42:18,598 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 20 [2022-11-25 18:42:18,702 INFO L134 CoverageAnalysis]: Checked inductivity of 348 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 332 trivial. 0 not checked. [2022-11-25 18:42:18,703 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [249258674] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 18:42:18,703 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 18:42:18,703 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 7] total 22 [2022-11-25 18:42:18,704 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [324657844] [2022-11-25 18:42:18,704 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 18:42:18,705 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-11-25 18:42:18,705 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:42:18,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-11-25 18:42:18,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=436, Unknown=0, NotChecked=0, Total=506 [2022-11-25 18:42:18,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:42:18,708 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-25 18:42:18,709 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 28.863636363636363) internal successors, (635), 23 states have internal predecessors, (635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:42:18,709 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:42:18,709 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-25 18:42:18,709 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2022-11-25 18:42:18,709 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2022-11-25 18:42:18,710 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-25 18:42:18,710 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:42:18,710 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:42:18,710 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:42:18,710 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:42:18,710 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2022-11-25 18:42:18,710 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 46 states. [2022-11-25 18:42:18,711 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 61 states. [2022-11-25 18:42:18,711 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:42:18,711 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:42:18,711 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:42:19,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:42:19,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 18:42:19,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-25 18:42:19,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-11-25 18:42:19,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 18:42:19,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:42:19,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:42:19,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:42:19,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:42:19,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-11-25 18:42:19,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-11-25 18:42:19,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2022-11-25 18:42:19,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:42:19,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:42:19,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-25 18:42:19,451 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa479a59-e03a-4fb9-afac-daa3ea972579/bin/ugemcutter-syNpU3ikLH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-25 18:42:19,644 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa479a59-e03a-4fb9-afac-daa3ea972579/bin/ugemcutter-syNpU3ikLH/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 18:42:19,644 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting t1Err25REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [t1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 38 more)] === [2022-11-25 18:42:19,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:42:19,645 INFO L85 PathProgramCache]: Analyzing trace with hash -1049632310, now seen corresponding path program 1 times [2022-11-25 18:42:19,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:42:19,645 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [896174810] [2022-11-25 18:42:19,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:42:19,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:42:19,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:42:33,145 INFO L134 CoverageAnalysis]: Checked inductivity of 344 backedges. 57 proven. 137 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-11-25 18:42:33,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:42:33,145 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [896174810] [2022-11-25 18:42:33,146 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [896174810] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 18:42:33,146 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1933535519] [2022-11-25 18:42:33,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:42:33,146 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 18:42:33,146 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa479a59-e03a-4fb9-afac-daa3ea972579/bin/ugemcutter-syNpU3ikLH/z3 [2022-11-25 18:42:33,151 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa479a59-e03a-4fb9-afac-daa3ea972579/bin/ugemcutter-syNpU3ikLH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 18:42:33,158 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa479a59-e03a-4fb9-afac-daa3ea972579/bin/ugemcutter-syNpU3ikLH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-25 18:42:33,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:42:33,477 INFO L263 TraceCheckSpWp]: Trace formula consists of 998 conjuncts, 138 conjunts are in the unsatisfiable core [2022-11-25 18:42:33,489 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 18:42:33,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:42:33,714 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2022-11-25 18:42:33,733 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-25 18:42:33,733 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-11-25 18:42:33,754 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-25 18:42:33,755 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-11-25 18:42:33,768 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2022-11-25 18:42:35,889 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 16 [2022-11-25 18:42:36,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:42:36,198 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 19 [2022-11-25 18:42:37,448 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 18:42:37,461 INFO L321 Elim1Store]: treesize reduction 23, result has 28.1 percent of original size [2022-11-25 18:42:37,461 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 45 treesize of output 35 [2022-11-25 18:42:37,775 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 30 [2022-11-25 18:42:38,602 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 27 [2022-11-25 18:42:38,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:42:38,941 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 38 [2022-11-25 18:42:40,932 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 38 [2022-11-25 18:42:42,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:42:42,316 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 34 [2022-11-25 18:42:42,698 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 34 [2022-11-25 18:42:44,216 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 18:42:44,228 INFO L321 Elim1Store]: treesize reduction 23, result has 28.1 percent of original size [2022-11-25 18:42:44,229 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 71 treesize of output 49 [2022-11-25 18:42:44,593 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 44 [2022-11-25 18:42:45,650 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 81 treesize of output 41 [2022-11-25 18:42:46,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:42:46,073 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 59 [2022-11-25 18:42:47,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:42:47,444 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 72 treesize of output 47 [2022-11-25 18:42:47,722 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 72 treesize of output 47 [2022-11-25 18:42:48,768 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 32 [2022-11-25 18:42:48,906 INFO L134 CoverageAnalysis]: Checked inductivity of 344 backedges. 25 proven. 169 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-11-25 18:42:48,906 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 18:42:51,713 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse0 (+ |c_~#queue~0.offset| 1604))) (and (forall ((v_ArrVal_1469 (Array Int Int))) (<= (+ (* (select (select (store |c_#memory_int| |c_~#stored_elements~0.base| v_ArrVal_1469) |c_~#queue~0.base|) .cse0) 4) |c_~#queue~0.offset| 4) (select |c_#length| |c_~#queue~0.base|))) (forall ((v_ArrVal_1469 (Array Int Int))) (<= 0 (+ (* (select (select (store |c_#memory_int| |c_~#stored_elements~0.base| v_ArrVal_1469) |c_~#queue~0.base|) .cse0) 4) |c_~#queue~0.offset|))))) is different from false [2022-11-25 18:42:51,790 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse0 (store |c_#memory_int| |c_t1Thread1of1ForFork1_enqueue_~q#1.base| (store (select |c_#memory_int| |c_t1Thread1of1ForFork1_enqueue_~q#1.base|) (+ |c_t1Thread1of1ForFork1_enqueue_~q#1.offset| 1604) (+ |c_t1Thread1of1ForFork1_enqueue_#t~post41#1| 1)))) (.cse1 (+ |c_~#queue~0.offset| 1604))) (and (forall ((v_ArrVal_1469 (Array Int Int))) (<= (+ |c_~#queue~0.offset| 4 (* 4 (select (select (store .cse0 |c_~#stored_elements~0.base| v_ArrVal_1469) |c_~#queue~0.base|) .cse1))) (select |c_#length| |c_~#queue~0.base|))) (forall ((v_ArrVal_1469 (Array Int Int))) (<= 0 (+ |c_~#queue~0.offset| (* 4 (select (select (store .cse0 |c_~#stored_elements~0.base| v_ArrVal_1469) |c_~#queue~0.base|) .cse1))))))) is different from false [2022-11-25 18:43:38,566 WARN L233 SmtUtils]: Spent 12.15s on a formula simplification that was a NOOP. DAG size: 52 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 18:43:39,079 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse2 (+ 1608 |c_~#queue~0.offset|)) (.cse7 (+ 1600 |c_~#queue~0.offset|)) (.cse5 (select |c_#length| |c_~#queue~0.base|)) (.cse3 (+ |c_~#queue~0.offset| 1604))) (and (forall ((v_ArrVal_1458 (Array Int Int))) (let ((.cse0 (store |c_#memory_int| |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_1458))) (let ((.cse6 (select .cse0 |c_~#queue~0.base|))) (let ((.cse8 (* (select .cse6 .cse3) 4))) (or (forall ((v_ArrVal_1469 (Array Int Int)) (v_ArrVal_1461 Int) (v_ArrVal_1464 Int) (v_ArrVal_1466 Int) (v_ArrVal_1459 Int)) (let ((.cse1 (store (store (store .cse6 .cse2 v_ArrVal_1459) .cse7 v_ArrVal_1461) (+ .cse8 |c_~#queue~0.offset|) v_ArrVal_1464))) (let ((.cse4 (select .cse1 .cse3))) (or (<= (+ (* 4 (select (select (store (store .cse0 |c_~#queue~0.base| (store (store .cse1 .cse2 v_ArrVal_1466) .cse3 (+ .cse4 1))) |c_~#stored_elements~0.base| v_ArrVal_1469) |c_~#queue~0.base|) .cse3)) |c_~#queue~0.offset| 4) .cse5) (= 400 .cse4))))) (not (<= (+ .cse8 |c_~#queue~0.offset| 4) .cse5))))))) (forall ((v_ArrVal_1458 (Array Int Int))) (let ((.cse10 (store |c_#memory_int| |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_1458))) (let ((.cse12 (select .cse10 |c_~#queue~0.base|))) (let ((.cse13 (* (select .cse12 .cse3) 4))) (or (forall ((v_ArrVal_1469 (Array Int Int)) (v_ArrVal_1461 Int) (v_ArrVal_1464 Int) (v_ArrVal_1466 Int) (v_ArrVal_1459 Int)) (let ((.cse11 (store (store (store .cse12 .cse2 v_ArrVal_1459) .cse7 v_ArrVal_1461) (+ .cse13 |c_~#queue~0.offset|) v_ArrVal_1464))) (let ((.cse9 (select .cse11 .cse3))) (or (= 400 .cse9) (<= 0 (+ (* 4 (select (select (store (store .cse10 |c_~#queue~0.base| (store (store .cse11 .cse2 v_ArrVal_1466) .cse3 (+ .cse9 1))) |c_~#stored_elements~0.base| v_ArrVal_1469) |c_~#queue~0.base|) .cse3)) |c_~#queue~0.offset|)))))) (not (<= (+ .cse13 |c_~#queue~0.offset| 4) .cse5))))))))) is different from false [2022-11-25 18:43:44,170 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse3 (+ 1608 |c_~#queue~0.offset|)) (.cse6 (+ 1600 |c_~#queue~0.offset|)) (.cse8 (select |c_#length| |c_~#queue~0.base|)) (.cse4 (+ |c_~#queue~0.offset| 1604)) (.cse9 (store |c_#memory_int| |c_t1Thread1of1ForFork1_enqueue_~q#1.base| (let ((.cse15 (select |c_#memory_int| |c_t1Thread1of1ForFork1_enqueue_~q#1.base|)) (.cse16 (+ |c_t1Thread1of1ForFork1_enqueue_~q#1.offset| 1604))) (store .cse15 .cse16 (+ (select .cse15 .cse16) 1)))))) (and (forall ((v_ArrVal_1458 (Array Int Int)) (v_ArrVal_1457 (Array Int Int))) (let ((.cse1 (store (store .cse9 |c_~#stored_elements~0.base| v_ArrVal_1457) |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_1458))) (let ((.cse5 (select .cse1 |c_~#queue~0.base|))) (let ((.cse7 (* (select .cse5 .cse4) 4))) (or (forall ((v_ArrVal_1469 (Array Int Int)) (v_ArrVal_1461 Int) (v_ArrVal_1464 Int) (v_ArrVal_1466 Int) (v_ArrVal_1459 Int)) (let ((.cse2 (store (store (store .cse5 .cse3 v_ArrVal_1459) .cse6 v_ArrVal_1461) (+ .cse7 |c_~#queue~0.offset|) v_ArrVal_1464))) (let ((.cse0 (select .cse2 .cse4))) (or (= 400 .cse0) (<= 0 (+ (* (select (select (store (store .cse1 |c_~#queue~0.base| (store (store .cse2 .cse3 v_ArrVal_1466) .cse4 (+ .cse0 1))) |c_~#stored_elements~0.base| v_ArrVal_1469) |c_~#queue~0.base|) .cse4) 4) |c_~#queue~0.offset|)))))) (not (<= (+ .cse7 |c_~#queue~0.offset| 4) .cse8))))))) (forall ((v_ArrVal_1458 (Array Int Int)) (v_ArrVal_1457 (Array Int Int))) (let ((.cse11 (store (store .cse9 |c_~#stored_elements~0.base| v_ArrVal_1457) |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_1458))) (let ((.cse13 (select .cse11 |c_~#queue~0.base|))) (let ((.cse14 (* (select .cse13 .cse4) 4))) (or (forall ((v_ArrVal_1469 (Array Int Int)) (v_ArrVal_1461 Int) (v_ArrVal_1464 Int) (v_ArrVal_1466 Int) (v_ArrVal_1459 Int)) (let ((.cse12 (store (store (store .cse13 .cse3 v_ArrVal_1459) .cse6 v_ArrVal_1461) (+ .cse14 |c_~#queue~0.offset|) v_ArrVal_1464))) (let ((.cse10 (select .cse12 .cse4))) (or (= 400 .cse10) (<= (+ (* (select (select (store (store .cse11 |c_~#queue~0.base| (store (store .cse12 .cse3 v_ArrVal_1466) .cse4 (+ .cse10 1))) |c_~#stored_elements~0.base| v_ArrVal_1469) |c_~#queue~0.base|) .cse4) 4) |c_~#queue~0.offset| 4) .cse8))))) (not (<= (+ .cse14 |c_~#queue~0.offset| 4) .cse8))))))))) is different from false [2022-11-25 18:44:11,004 WARN L233 SmtUtils]: Spent 8.07s on a formula simplification that was a NOOP. DAG size: 79 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 18:44:15,555 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse9 (+ 1600 |c_~#queue~0.offset|)) (.cse2 (select |c_#length| |c_~#queue~0.base|)) (.cse5 (+ 1608 |c_~#queue~0.offset|)) (.cse6 (+ |c_~#queue~0.offset| 1604)) (.cse14 (store |c_#memory_int| |c_t1Thread1of1ForFork1_enqueue_~q#1.base| (store (select |c_#memory_int| |c_t1Thread1of1ForFork1_enqueue_~q#1.base|) (+ |c_t1Thread1of1ForFork1_enqueue_~q#1.offset| 1604) (+ |c_t1Thread1of1ForFork1_enqueue_#t~post41#1| 1))))) (and (forall ((v_ArrVal_1450 (Array Int Int))) (let ((.cse10 (store .cse14 |c_~#stored_elements~0.base| v_ArrVal_1450))) (let ((.cse12 (select .cse10 |c_~#queue~0.base|))) (let ((.cse13 (+ (* (select .cse12 .cse6) 4) |c_~#queue~0.offset|))) (or (forall ((v_ArrVal_1451 Int)) (let ((.cse11 (store .cse12 .cse13 v_ArrVal_1451))) (let ((.cse0 (select .cse11 .cse6))) (or (= .cse0 400) (forall ((v_ArrVal_1458 (Array Int Int)) (v_ArrVal_1457 (Array Int Int)) (v_ArrVal_1453 Int)) (let ((.cse3 (store (store (store .cse10 |c_~#queue~0.base| (store (store .cse11 .cse5 v_ArrVal_1453) .cse6 (+ .cse0 1))) |c_~#stored_elements~0.base| v_ArrVal_1457) |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_1458))) (let ((.cse8 (select .cse3 |c_~#queue~0.base|))) (let ((.cse1 (* (select .cse8 .cse6) 4))) (or (not (<= (+ |c_~#queue~0.offset| 4 .cse1) .cse2)) (forall ((v_ArrVal_1469 (Array Int Int)) (v_ArrVal_1461 Int) (v_ArrVal_1464 Int) (v_ArrVal_1466 Int) (v_ArrVal_1459 Int)) (let ((.cse4 (store (store (store .cse8 .cse5 v_ArrVal_1459) .cse9 v_ArrVal_1461) (+ |c_~#queue~0.offset| .cse1) v_ArrVal_1464))) (let ((.cse7 (select .cse4 .cse6))) (or (<= 0 (+ |c_~#queue~0.offset| (* (select (select (store (store .cse3 |c_~#queue~0.base| (store (store .cse4 .cse5 v_ArrVal_1466) .cse6 (+ .cse7 1))) |c_~#stored_elements~0.base| v_ArrVal_1469) |c_~#queue~0.base|) .cse6) 4))) (= .cse7 400)))))))))))))) (not (<= 0 .cse13))))))) (forall ((v_ArrVal_1450 (Array Int Int))) (let ((.cse21 (store .cse14 |c_~#stored_elements~0.base| v_ArrVal_1450))) (let ((.cse23 (select .cse21 |c_~#queue~0.base|))) (let ((.cse24 (+ (* (select .cse23 .cse6) 4) |c_~#queue~0.offset|))) (or (forall ((v_ArrVal_1451 Int)) (let ((.cse22 (store .cse23 .cse24 v_ArrVal_1451))) (let ((.cse15 (select .cse22 .cse6))) (or (= .cse15 400) (forall ((v_ArrVal_1458 (Array Int Int)) (v_ArrVal_1457 (Array Int Int)) (v_ArrVal_1453 Int)) (let ((.cse16 (store (store (store .cse21 |c_~#queue~0.base| (store (store .cse22 .cse5 v_ArrVal_1453) .cse6 (+ .cse15 1))) |c_~#stored_elements~0.base| v_ArrVal_1457) |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_1458))) (let ((.cse19 (select .cse16 |c_~#queue~0.base|))) (let ((.cse20 (* (select .cse19 .cse6) 4))) (or (forall ((v_ArrVal_1469 (Array Int Int)) (v_ArrVal_1461 Int) (v_ArrVal_1464 Int) (v_ArrVal_1466 Int) (v_ArrVal_1459 Int)) (let ((.cse17 (store (store (store .cse19 .cse5 v_ArrVal_1459) .cse9 v_ArrVal_1461) (+ |c_~#queue~0.offset| .cse20) v_ArrVal_1464))) (let ((.cse18 (select .cse17 .cse6))) (or (<= (+ |c_~#queue~0.offset| (* (select (select (store (store .cse16 |c_~#queue~0.base| (store (store .cse17 .cse5 v_ArrVal_1466) .cse6 (+ .cse18 1))) |c_~#stored_elements~0.base| v_ArrVal_1469) |c_~#queue~0.base|) .cse6) 4) 4) .cse2) (= .cse18 400))))) (not (<= (+ |c_~#queue~0.offset| 4 .cse20) .cse2))))))))))) (not (<= 0 .cse24))))))))) is different from false [2022-11-25 18:44:21,605 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-25 18:44:21,605 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 3042 treesize of output 1500 [2022-11-25 18:44:21,681 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-25 18:44:21,682 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 3957 treesize of output 3867 [2022-11-25 18:44:21,718 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 3900 treesize of output 3832 [2022-11-25 18:44:21,754 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 4042 treesize of output 3858 [2022-11-25 18:44:21,871 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 3806 treesize of output 3774 [2022-11-25 18:44:21,921 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 3834 treesize of output 3722 [2022-11-25 18:44:21,966 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 3752 treesize of output 3696 [2022-11-25 18:44:22,011 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 3696 treesize of output 3632 [2022-11-25 18:44:22,061 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 3684 treesize of output 3572 [2022-11-25 18:44:22,108 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 3676 treesize of output 3452 [2022-11-25 18:44:22,215 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-25 18:44:29,275 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-25 18:44:29,276 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 2228 treesize of output 1592 [2022-11-25 18:44:37,265 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-25 18:44:37,266 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 118 treesize of output 118 [2022-11-25 18:44:37,336 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-25 18:44:37,336 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 112 treesize of output 152 [2022-11-25 18:44:38,194 INFO L134 CoverageAnalysis]: Checked inductivity of 344 backedges. 0 proven. 85 refuted. 0 times theorem prover too weak. 150 trivial. 109 not checked. [2022-11-25 18:44:38,195 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1933535519] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 18:44:38,195 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 18:44:38,195 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [45, 43, 49] total 134 [2022-11-25 18:44:38,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1431229613] [2022-11-25 18:44:38,196 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 18:44:38,197 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 134 states [2022-11-25 18:44:38,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:44:38,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 134 interpolants. [2022-11-25 18:44:38,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=999, Invalid=15307, Unknown=226, NotChecked=1290, Total=17822 [2022-11-25 18:44:38,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:44:38,206 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-25 18:44:38,206 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 134 states, 134 states have (on average 6.58955223880597) internal successors, (883), 134 states have internal predecessors, (883), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:44:38,206 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:44:38,207 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-25 18:44:38,207 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2022-11-25 18:44:38,207 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2022-11-25 18:44:38,207 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-25 18:44:38,207 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:44:38,207 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:44:38,207 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:44:38,207 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:44:38,207 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2022-11-25 18:44:38,207 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 46 states. [2022-11-25 18:44:38,207 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 61 states. [2022-11-25 18:44:38,207 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:44:38,207 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:44:38,207 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2022-11-25 18:44:38,208 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:44:51,098 WARN L233 SmtUtils]: Spent 5.67s on a formula simplification. DAG size of input: 387 DAG size of output: 40 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 18:45:06,272 WARN L859 $PredicateComparison]: unable to prove that (let ((.cse42 (select |c_#memory_int| |c_ULTIMATE.start_empty_~q#1.base|)) (.cse0 (select |c_#memory_int| |c_t1Thread1of1ForFork1_enqueue_#in~q#1.base|)) (.cse24 (select |c_#memory_int| |c_~#queue~0.base|)) (.cse45 (select |c_#memory_int| |c_ULTIMATE.start_empty_#in~q#1.base|)) (.cse14 ((as const (Array Int Int)) 0))) (let ((.cse46 (@diff .cse45 .cse14)) (.cse23 (@diff .cse24 .cse14)) (.cse51 (@diff .cse0 .cse14)) (.cse41 (@diff .cse42 .cse14))) (let ((.cse49 (store .cse42 .cse41 0)) (.cse56 (store .cse0 .cse51 0)) (.cse48 (store .cse24 .cse23 0)) (.cse33 (store .cse45 .cse46 0)) (.cse7 (select |c_#memory_int| |c_t1Thread1of1ForFork1_enqueue_~q#1.base|)) (.cse5 (+ |c_t1Thread1of1ForFork1_enqueue_~q#1.offset| 1604))) (let ((.cse20 (select .cse7 .cse5)) (.cse32 (@diff .cse33 .cse14)) (.cse28 (+ |c_t1Thread1of1ForFork1_enqueue_#in~q#1.offset| 1604)) (.cse47 (@diff .cse48 .cse14)) (.cse1 (@diff .cse56 .cse14)) (.cse50 (@diff .cse49 .cse14))) (let ((.cse39 (store .cse49 .cse50 0)) (.cse43 (store .cse56 .cse1 0)) (.cse15 (store .cse48 .cse47 0)) (.cse52 (* 4 |c_t1Thread1of1ForFork1_enqueue_#t~mem36#1|)) (.cse54 (* (select .cse0 .cse28) 4)) (.cse18 (store .cse33 .cse32 0)) (.cse53 (select |c_#length| |c_t1Thread1of1ForFork1_enqueue_~q#1.base|)) (.cse55 (* .cse20 4))) (let ((.cse8 (+ .cse55 |c_t1Thread1of1ForFork1_enqueue_~q#1.offset|)) (.cse12 (<= (+ .cse55 4 |c_t1Thread1of1ForFork1_enqueue_~q#1.offset|) .cse53)) (.cse17 (= 400 .cse20)) (.cse19 (@diff .cse18 .cse14)) (.cse25 (<= (+ |c_t1Thread1of1ForFork1_enqueue_#in~q#1.offset| .cse54 4) (select |c_#length| |c_t1Thread1of1ForFork1_enqueue_#in~q#1.base|))) (.cse21 (+ |c_t1Thread1of1ForFork1_enqueue_#in~q#1.offset| .cse54)) (.cse4 (+ 1608 |c_t1Thread1of1ForFork1_enqueue_~q#1.offset|)) (.cse13 (<= (+ .cse52 4 |c_t1Thread1of1ForFork1_enqueue_~q#1.offset|) .cse53)) (.cse16 (@diff .cse15 .cse14)) (.cse6 (+ |c_~#queue~0.offset| 1604)) (.cse36 (+ .cse52 |c_t1Thread1of1ForFork1_enqueue_~q#1.offset|)) (.cse44 (@diff .cse43 .cse14)) (.cse11 (select |c_#length| |c_~#queue~0.base|)) (.cse40 (@diff .cse39 .cse14))) (and (or (= (select .cse0 .cse1) 0) (<= .cse1 1600) (<= 1608 .cse1)) (= (select |c_#length| |c_ULTIMATE.start_main_~#id1~0#1.base|) 4) (or (and (forall ((v_ArrVal_1464 Int)) (let ((.cse3 (store .cse7 .cse8 v_ArrVal_1464))) (let ((.cse2 (select .cse3 .cse5))) (or (= 400 .cse2) (forall ((v_ArrVal_1469 (Array Int Int)) (v_ArrVal_1466 Int)) (<= 0 (+ (* (select (select (store (store |c_#memory_int| |c_t1Thread1of1ForFork1_enqueue_~q#1.base| (store (store .cse3 .cse4 v_ArrVal_1466) .cse5 (+ .cse2 1))) |c_~#stored_elements~0.base| v_ArrVal_1469) |c_~#queue~0.base|) .cse6) 4) |c_~#queue~0.offset|))))))) (forall ((v_ArrVal_1464 Int)) (let ((.cse9 (store .cse7 .cse8 v_ArrVal_1464))) (let ((.cse10 (select .cse9 .cse5))) (or (forall ((v_ArrVal_1469 (Array Int Int)) (v_ArrVal_1466 Int)) (<= (+ (* (select (select (store (store |c_#memory_int| |c_t1Thread1of1ForFork1_enqueue_~q#1.base| (store (store .cse9 .cse4 v_ArrVal_1466) .cse5 (+ .cse10 1))) |c_~#stored_elements~0.base| v_ArrVal_1469) |c_~#queue~0.base|) .cse6) 4) |c_~#queue~0.offset| 4) .cse11)) (= 400 .cse10)))))) (not .cse12)) (<= |c_~#stored_elements~0.base| 4) (= |c_ULTIMATE.start_init_#in~q#1.offset| 0) (= |c_t1Thread1of1ForFork1_enqueue_~q#1.offset| 0) .cse13 (= .cse14 (store .cse15 .cse16 0)) (= |c_~#queue~0.offset| |c_t1Thread1of1ForFork1_enqueue_~q#1.offset|) (not (= |c_~#queue~0.base| |c_~#stored_elements~0.base|)) (not (= |c_ULTIMATE.start_main_~#id1~0#1.base| |c_ULTIMATE.start_empty_~q#1.base|)) (<= 0 .cse8) (= |c_~#queue~0.base| |c_t1Thread1of1ForFork1_enqueue_~q#1.base|) (not .cse17) (or (= .cse14 .cse18) (<= .cse19 1600) (<= 1608 .cse19)) (= |c_~#queue~0.offset| 0) (not (= |c_~#queue~0.base| |c_ULTIMATE.start_main_~#id1~0#1.base|)) .cse12 (= |c_t1Thread1of1ForFork1_enqueue_#in~q#1.offset| |c_~#queue~0.offset|) (= |c_~#queue~0.offset| |c_ULTIMATE.start_init_#in~q#1.offset|) (= .cse14 (select |c_#memory_int| |c_ULTIMATE.start_init_~q#1.base|)) (not (= .cse20 401)) (<= 1612 (select |c_#length| |c_ULTIMATE.start_empty_#in~q#1.base|)) (= |c_ULTIMATE.start_init_~q#1.offset| 0) (= 5 |c_~#queue~0.base|) (<= 0 .cse21) (= |c_~#queue~0.base| |c_t1Thread1of1ForFork1_enqueue_#in~q#1.base|) (= (select |c_#valid| 5) 1) (= .cse20 |c_t1Thread1of1ForFork1_enqueue_#t~mem36#1|) (= |c_ULTIMATE.start_init_~q#1.offset| |c_~#queue~0.offset|) (= (select .cse7 1600) 0) (not (= |c_ULTIMATE.start_main_~#id2~0#1.base| |c_~#queue~0.base|)) (or (let ((.cse22 (+ .cse20 1))) (and (forall ((v_ArrVal_1469 (Array Int Int)) (v_ArrVal_1466 Int)) (<= (+ (* 4 (select (select (store (store |c_#memory_int| |c_t1Thread1of1ForFork1_enqueue_~q#1.base| (store (store .cse7 .cse4 v_ArrVal_1466) .cse5 .cse22)) |c_~#stored_elements~0.base| v_ArrVal_1469) |c_~#queue~0.base|) .cse6)) |c_~#queue~0.offset| 4) .cse11)) (forall ((v_ArrVal_1469 (Array Int Int)) (v_ArrVal_1466 Int)) (<= 0 (+ (* 4 (select (select (store (store |c_#memory_int| |c_t1Thread1of1ForFork1_enqueue_~q#1.base| (store (store .cse7 .cse4 v_ArrVal_1466) .cse5 .cse22)) |c_~#stored_elements~0.base| v_ArrVal_1469) |c_~#queue~0.base|) .cse6)) |c_~#queue~0.offset|))))) .cse17) (or (<= 1608 .cse23) (= (select .cse24 .cse23) 0) (<= .cse23 1600)) (not (= |c_ULTIMATE.start_main_~#id2~0#1.base| |c_ULTIMATE.start_empty_~q#1.base|)) (<= (select |c_#length| 5) 1612) (not (= |c_ULTIMATE.start_main_~#id2~0#1.base| 5)) .cse25 (= |c_t1Thread1of1ForFork1_enqueue_#in~q#1.offset| 0) (= .cse20 0) (= .cse14 (store .cse18 .cse19 0)) (or (not .cse25) (let ((.cse27 (+ 1608 |c_t1Thread1of1ForFork1_enqueue_#in~q#1.offset|))) (and (forall ((v_ArrVal_1464 Int)) (let ((.cse26 (store .cse0 .cse21 v_ArrVal_1464))) (let ((.cse29 (select .cse26 .cse28))) (or (forall ((v_ArrVal_1469 (Array Int Int)) (v_ArrVal_1466 Int)) (<= (+ |c_~#queue~0.offset| (* (select (select (store (store |c_#memory_int| |c_t1Thread1of1ForFork1_enqueue_#in~q#1.base| (store (store .cse26 .cse27 v_ArrVal_1466) .cse28 (+ .cse29 1))) |c_~#stored_elements~0.base| v_ArrVal_1469) |c_~#queue~0.base|) .cse6) 4) 4) .cse11)) (= 400 .cse29))))) (forall ((v_ArrVal_1464 Int)) (let ((.cse30 (store .cse0 .cse21 v_ArrVal_1464))) (let ((.cse31 (select .cse30 .cse28))) (or (forall ((v_ArrVal_1469 (Array Int Int)) (v_ArrVal_1466 Int)) (<= 0 (+ |c_~#queue~0.offset| (* (select (select (store (store |c_#memory_int| |c_t1Thread1of1ForFork1_enqueue_#in~q#1.base| (store (store .cse30 .cse27 v_ArrVal_1466) .cse28 (+ .cse31 1))) |c_~#stored_elements~0.base| v_ArrVal_1469) |c_~#queue~0.base|) .cse6) 4)))) (= 400 .cse31)))))))) (or (<= .cse32 1600) (= .cse14 .cse33) (<= 1608 .cse32)) (or (and (forall ((v_ArrVal_1464 Int)) (let ((.cse35 (store .cse7 .cse36 v_ArrVal_1464))) (let ((.cse34 (select .cse35 .cse5))) (or (= 400 .cse34) (forall ((v_ArrVal_1469 (Array Int Int)) (v_ArrVal_1466 Int)) (<= (+ (* (select (select (store (store |c_#memory_int| |c_t1Thread1of1ForFork1_enqueue_~q#1.base| (store (store .cse35 .cse4 v_ArrVal_1466) .cse5 (+ .cse34 1))) |c_~#stored_elements~0.base| v_ArrVal_1469) |c_~#queue~0.base|) .cse6) 4) |c_~#queue~0.offset| 4) .cse11)))))) (forall ((v_ArrVal_1464 Int)) (let ((.cse37 (store .cse7 .cse36 v_ArrVal_1464))) (let ((.cse38 (select .cse37 .cse5))) (or (forall ((v_ArrVal_1469 (Array Int Int)) (v_ArrVal_1466 Int)) (<= 0 (+ (* (select (select (store (store |c_#memory_int| |c_t1Thread1of1ForFork1_enqueue_~q#1.base| (store (store .cse37 .cse4 v_ArrVal_1466) .cse5 (+ .cse38 1))) |c_~#stored_elements~0.base| v_ArrVal_1469) |c_~#queue~0.base|) .cse6) 4) |c_~#queue~0.offset|))) (= 400 .cse38)))))) (not .cse13)) (= |c_ULTIMATE.start_empty_#in~q#1.offset| 0) (or (= .cse14 .cse15) (<= .cse16 1600) (<= 1608 .cse16)) (not (= (select .cse24 .cse6) 401)) (= (select .cse24 1600) 0) (= |c_~#queue~0.base| |c_ULTIMATE.start_empty_#in~q#1.base|) (= (select .cse0 1600) 0) (<= 0 .cse36) (= (select |c_#length| |c_ULTIMATE.start_main_~#id2~0#1.base|) 4) (= |c_t1Thread1of1ForFork1_enqueue_#t~mem36#1| 0) (= .cse14 .cse24) (or (= .cse14 .cse39) (<= .cse40 1600) (<= 1608 .cse40)) (or (<= 1608 .cse41) (= .cse14 .cse42) (<= .cse41 1600)) (= .cse14 (store .cse43 .cse44 0)) (= |c_~#queue~0.base| |c_ULTIMATE.start_init_~q#1.base|) (or (= .cse14 .cse45) (<= 1608 .cse46) (<= .cse46 1600)) (or (= (select .cse0 .cse44) 0) (<= 1608 .cse44) (<= .cse44 1600)) (= |c_ULTIMATE.start_empty_~q#1.offset| 0) (not (= 4 (select |c_#length| |c_ULTIMATE.start_empty_~q#1.base|))) (or (<= 1608 .cse47) (<= .cse47 1600) (= .cse14 .cse48)) (= |c_ULTIMATE.start_empty_#in~q#1.offset| |c_~#queue~0.offset|) (or (= .cse14 .cse49) (<= 1608 .cse50) (<= .cse50 1600)) (= |c_~#queue~0.base| |c_ULTIMATE.start_init_#in~q#1.base|) (= |c_~#queue~0.base| |c_ULTIMATE.start_empty_~q#1.base|) (<= (+ |c_~#queue~0.offset| 1612) .cse11) (or (= .cse14 .cse0) (<= .cse51 1600) (<= 1608 .cse51)) (= .cse14 (store .cse39 .cse40 0))))))))) is different from true [2022-11-25 18:45:30,878 WARN L233 SmtUtils]: Spent 5.34s on a formula simplification. DAG size of input: 293 DAG size of output: 104 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 18:45:49,634 WARN L233 SmtUtils]: Spent 7.01s on a formula simplification. DAG size of input: 212 DAG size of output: 120 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 18:45:51,094 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result VALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-11-25 18:46:07,414 WARN L233 SmtUtils]: Spent 10.62s on a formula simplification. DAG size of input: 292 DAG size of output: 226 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 18:46:36,357 WARN L233 SmtUtils]: Spent 6.48s on a formula simplification. DAG size of input: 160 DAG size of output: 109 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 18:47:10,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:47:10,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 18:47:10,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-25 18:47:10,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-11-25 18:47:10,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 18:47:10,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:47:10,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:47:10,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:47:10,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:47:10,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-11-25 18:47:10,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-11-25 18:47:10,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2022-11-25 18:47:10,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:47:10,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:47:10,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-25 18:47:10,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 87 states. [2022-11-25 18:47:10,727 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa479a59-e03a-4fb9-afac-daa3ea972579/bin/ugemcutter-syNpU3ikLH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-25 18:47:10,921 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa479a59-e03a-4fb9-afac-daa3ea972579/bin/ugemcutter-syNpU3ikLH/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-11-25 18:47:10,922 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting t1Err39REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [t1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 38 more)] === [2022-11-25 18:47:10,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:47:10,922 INFO L85 PathProgramCache]: Analyzing trace with hash -1743123670, now seen corresponding path program 1 times [2022-11-25 18:47:10,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:47:10,922 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [916482072] [2022-11-25 18:47:10,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:47:10,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:47:11,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:47:21,723 INFO L134 CoverageAnalysis]: Checked inductivity of 606 backedges. 234 proven. 216 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2022-11-25 18:47:21,724 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:47:21,724 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [916482072] [2022-11-25 18:47:21,724 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [916482072] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 18:47:21,724 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [748420834] [2022-11-25 18:47:21,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:47:21,724 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 18:47:21,725 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa479a59-e03a-4fb9-afac-daa3ea972579/bin/ugemcutter-syNpU3ikLH/z3 [2022-11-25 18:47:21,725 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa479a59-e03a-4fb9-afac-daa3ea972579/bin/ugemcutter-syNpU3ikLH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 18:47:21,728 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa479a59-e03a-4fb9-afac-daa3ea972579/bin/ugemcutter-syNpU3ikLH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-25 18:47:22,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:47:22,132 INFO L263 TraceCheckSpWp]: Trace formula consists of 1281 conjuncts, 53 conjunts are in the unsatisfiable core [2022-11-25 18:47:22,140 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 18:47:22,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:47:22,433 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2022-11-25 18:47:22,464 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-25 18:47:22,465 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-11-25 18:47:22,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:47:22,481 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2022-11-25 18:47:29,122 INFO L134 CoverageAnalysis]: Checked inductivity of 606 backedges. 0 proven. 606 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:47:29,122 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 18:47:36,790 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-25 18:47:36,790 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 48 treesize of output 52 [2022-11-25 18:47:36,827 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-25 18:47:36,828 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 46 treesize of output 64 [2022-11-25 18:47:37,072 INFO L134 CoverageAnalysis]: Checked inductivity of 606 backedges. 0 proven. 606 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:47:37,073 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [748420834] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 18:47:37,073 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 18:47:37,074 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [44, 23, 23] total 88 [2022-11-25 18:47:37,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [58403183] [2022-11-25 18:47:37,074 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 18:47:37,079 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 88 states [2022-11-25 18:47:37,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:47:37,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 88 interpolants. [2022-11-25 18:47:37,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=633, Invalid=7023, Unknown=0, NotChecked=0, Total=7656 [2022-11-25 18:47:37,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:47:37,093 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-25 18:47:37,095 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 88 states, 88 states have (on average 14.431818181818182) internal successors, (1270), 88 states have internal predecessors, (1270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:47:37,095 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:47:37,095 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-25 18:47:37,095 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2022-11-25 18:47:37,095 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2022-11-25 18:47:37,095 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-25 18:47:37,096 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:47:37,097 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:47:37,097 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:47:37,097 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:47:37,097 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2022-11-25 18:47:37,097 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 46 states. [2022-11-25 18:47:37,097 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 61 states. [2022-11-25 18:47:37,097 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:47:37,098 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:47:37,098 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2022-11-25 18:47:37,098 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 87 states. [2022-11-25 18:47:37,098 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:48:24,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:48:24,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 18:48:24,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-25 18:48:24,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-11-25 18:48:24,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 18:48:24,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:48:24,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:48:24,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:48:24,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:48:24,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-11-25 18:48:24,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-11-25 18:48:24,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2022-11-25 18:48:24,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:48:24,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:48:24,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-25 18:48:24,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 94 states. [2022-11-25 18:48:24,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 108 states. [2022-11-25 18:48:24,647 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa479a59-e03a-4fb9-afac-daa3ea972579/bin/ugemcutter-syNpU3ikLH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2022-11-25 18:48:24,842 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa479a59-e03a-4fb9-afac-daa3ea972579/bin/ugemcutter-syNpU3ikLH/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-11-25 18:48:24,843 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting t1Err39REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [t1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 38 more)] === [2022-11-25 18:48:24,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:48:24,843 INFO L85 PathProgramCache]: Analyzing trace with hash 2112106076, now seen corresponding path program 2 times [2022-11-25 18:48:24,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:48:24,843 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [90228708] [2022-11-25 18:48:24,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:48:24,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:48:25,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:48:38,179 INFO L134 CoverageAnalysis]: Checked inductivity of 2046 backedges. 18 proven. 714 refuted. 0 times theorem prover too weak. 1314 trivial. 0 not checked. [2022-11-25 18:48:38,179 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:48:38,179 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [90228708] [2022-11-25 18:48:38,179 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [90228708] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 18:48:38,180 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [690447006] [2022-11-25 18:48:38,180 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-25 18:48:38,180 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 18:48:38,180 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa479a59-e03a-4fb9-afac-daa3ea972579/bin/ugemcutter-syNpU3ikLH/z3 [2022-11-25 18:48:38,181 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa479a59-e03a-4fb9-afac-daa3ea972579/bin/ugemcutter-syNpU3ikLH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 18:48:38,183 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa479a59-e03a-4fb9-afac-daa3ea972579/bin/ugemcutter-syNpU3ikLH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-11-25 18:48:38,706 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-25 18:48:38,706 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 18:48:38,713 INFO L263 TraceCheckSpWp]: Trace formula consists of 1533 conjuncts, 101 conjunts are in the unsatisfiable core [2022-11-25 18:48:38,721 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 18:48:39,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:48:39,024 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2022-11-25 18:48:39,054 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-25 18:48:39,055 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-11-25 18:48:39,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 18:48:39,074 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2022-11-25 18:48:50,022 INFO L134 CoverageAnalysis]: Checked inductivity of 2046 backedges. 0 proven. 2046 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:48:50,022 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 18:49:03,026 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-25 18:49:03,027 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 48 treesize of output 52 [2022-11-25 18:49:03,066 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-25 18:49:03,067 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 46 treesize of output 64 [2022-11-25 18:49:03,403 INFO L134 CoverageAnalysis]: Checked inductivity of 2046 backedges. 0 proven. 2046 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:49:03,403 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [690447006] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 18:49:03,404 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 18:49:03,404 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [52, 47, 47] total 144 [2022-11-25 18:49:03,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [428897882] [2022-11-25 18:49:03,404 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 18:49:03,406 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 144 states [2022-11-25 18:49:03,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:49:03,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 144 interpolants. [2022-11-25 18:49:03,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1671, Invalid=18921, Unknown=0, NotChecked=0, Total=20592 [2022-11-25 18:49:03,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:49:03,415 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-25 18:49:03,416 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 144 states, 144 states have (on average 10.1875) internal successors, (1467), 144 states have internal predecessors, (1467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:49:03,417 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:49:03,417 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-25 18:49:03,417 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2022-11-25 18:49:03,417 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2022-11-25 18:49:03,417 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-25 18:49:03,418 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:49:03,418 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:49:03,418 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:49:03,418 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:49:03,418 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2022-11-25 18:49:03,418 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 46 states. [2022-11-25 18:49:03,419 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 61 states. [2022-11-25 18:49:03,419 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:49:03,419 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:49:03,419 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2022-11-25 18:49:03,419 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 94 states. [2022-11-25 18:49:03,419 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 108 states. [2022-11-25 18:49:03,420 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:50:53,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:50:53,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 18:50:53,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-25 18:50:53,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-11-25 18:50:53,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 18:50:53,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:50:53,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:50:53,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:50:53,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:50:53,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-11-25 18:50:53,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-11-25 18:50:53,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2022-11-25 18:50:53,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:50:53,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:50:53,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-25 18:50:53,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 94 states. [2022-11-25 18:50:53,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 108 states. [2022-11-25 18:50:53,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 190 states. [2022-11-25 18:50:53,791 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa479a59-e03a-4fb9-afac-daa3ea972579/bin/ugemcutter-syNpU3ikLH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-11-25 18:50:53,982 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa479a59-e03a-4fb9-afac-daa3ea972579/bin/ugemcutter-syNpU3ikLH/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-11-25 18:50:53,983 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting t1Err39REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [t1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 38 more)] === [2022-11-25 18:50:53,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:50:53,983 INFO L85 PathProgramCache]: Analyzing trace with hash -1220466320, now seen corresponding path program 3 times [2022-11-25 18:50:53,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:50:53,983 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1387085278] [2022-11-25 18:50:53,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:50:53,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:50:54,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat