./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_83-list2_racing1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_820df542-b1d8-4822-88c8-e8869d290bff/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_820df542-b1d8-4822-88c8-e8869d290bff/bin/uautomizer-verify-jihMAELWvX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_820df542-b1d8-4822-88c8-e8869d290bff/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_820df542-b1d8-4822-88c8-e8869d290bff/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_83-list2_racing1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_820df542-b1d8-4822-88c8-e8869d290bff/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_820df542-b1d8-4822-88c8-e8869d290bff/bin/uautomizer-verify-jihMAELWvX --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 23c4aefdda14d4315577cd0030d174ab477745d4b270d2de822290a016a0ff8d --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 17:34:26,755 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 17:34:26,882 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_820df542-b1d8-4822-88c8-e8869d290bff/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-08 17:34:26,892 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 17:34:26,893 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 17:34:26,966 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 17:34:26,969 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 17:34:26,970 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 17:34:26,971 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 17:34:26,972 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 17:34:26,972 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 17:34:26,973 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 17:34:26,974 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 17:34:26,977 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 17:34:26,978 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 17:34:26,979 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 17:34:26,979 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 17:34:26,980 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 17:34:26,980 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 17:34:26,980 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 17:34:26,981 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 17:34:26,985 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 17:34:26,986 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 17:34:26,986 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 17:34:26,987 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 17:34:26,987 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 17:34:26,987 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 17:34:26,988 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 17:34:26,988 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 17:34:26,991 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 17:34:26,992 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 17:34:26,992 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 17:34:26,993 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 17:34:26,994 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 17:34:26,994 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 17:34:26,995 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 17:34:27,008 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 17:34:27,009 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 17:34:27,009 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 17:34:27,010 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 17:34:27,010 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 17:34:27,011 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 17:34:27,011 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_820df542-b1d8-4822-88c8-e8869d290bff/bin/uautomizer-verify-jihMAELWvX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_820df542-b1d8-4822-88c8-e8869d290bff/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 23c4aefdda14d4315577cd0030d174ab477745d4b270d2de822290a016a0ff8d [2024-11-08 17:34:27,442 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 17:34:27,479 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 17:34:27,482 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 17:34:27,484 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 17:34:27,485 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 17:34:27,486 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_820df542-b1d8-4822-88c8-e8869d290bff/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/goblint-regression/28-race_reach_83-list2_racing1.i Unable to find full path for "g++" [2024-11-08 17:34:29,924 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 17:34:30,418 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 17:34:30,419 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_820df542-b1d8-4822-88c8-e8869d290bff/sv-benchmarks/c/goblint-regression/28-race_reach_83-list2_racing1.i [2024-11-08 17:34:30,446 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_820df542-b1d8-4822-88c8-e8869d290bff/bin/uautomizer-verify-jihMAELWvX/data/9af4da226/46d15b2524294e3397d8c07f3340da1a/FLAGaed78d06d [2024-11-08 17:34:30,480 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_820df542-b1d8-4822-88c8-e8869d290bff/bin/uautomizer-verify-jihMAELWvX/data/9af4da226/46d15b2524294e3397d8c07f3340da1a [2024-11-08 17:34:30,486 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 17:34:30,488 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 17:34:30,491 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 17:34:30,493 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 17:34:30,525 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 17:34:30,526 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 05:34:30" (1/1) ... [2024-11-08 17:34:30,527 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71e47177 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:34:30, skipping insertion in model container [2024-11-08 17:34:30,530 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 05:34:30" (1/1) ... [2024-11-08 17:34:30,604 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 17:34:31,280 WARN L250 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_820df542-b1d8-4822-88c8-e8869d290bff/sv-benchmarks/c/goblint-regression/28-race_reach_83-list2_racing1.i[47038,47051] [2024-11-08 17:34:31,363 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 17:34:31,413 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 17:34:31,474 WARN L250 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_820df542-b1d8-4822-88c8-e8869d290bff/sv-benchmarks/c/goblint-regression/28-race_reach_83-list2_racing1.i[47038,47051] [2024-11-08 17:34:31,501 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 17:34:31,594 INFO L204 MainTranslator]: Completed translation [2024-11-08 17:34:31,595 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:34:31 WrapperNode [2024-11-08 17:34:31,595 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 17:34:31,597 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 17:34:31,598 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 17:34:31,598 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 17:34:31,609 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:34:31" (1/1) ... [2024-11-08 17:34:31,633 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:34:31" (1/1) ... [2024-11-08 17:34:31,693 INFO L138 Inliner]: procedures = 280, calls = 96, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 353 [2024-11-08 17:34:31,694 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 17:34:31,694 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 17:34:31,695 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 17:34:31,695 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 17:34:31,730 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:34:31" (1/1) ... [2024-11-08 17:34:31,730 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:34:31" (1/1) ... [2024-11-08 17:34:31,750 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:34:31" (1/1) ... [2024-11-08 17:34:31,834 INFO L175 MemorySlicer]: Split 51 memory accesses to 9 slices as follows [2, 5, 5, 5, 5, 2, 2, 23, 2]. 45 percent of accesses are in the largest equivalence class. The 22 initializations are split as follows [2, 5, 5, 5, 5, 0, 0, 0, 0]. The 15 writes are split as follows [0, 0, 0, 0, 0, 1, 1, 12, 1]. [2024-11-08 17:34:31,835 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:34:31" (1/1) ... [2024-11-08 17:34:31,835 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:34:31" (1/1) ... [2024-11-08 17:34:31,877 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:34:31" (1/1) ... [2024-11-08 17:34:31,890 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:34:31" (1/1) ... [2024-11-08 17:34:31,903 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:34:31" (1/1) ... [2024-11-08 17:34:31,910 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:34:31" (1/1) ... [2024-11-08 17:34:31,925 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 17:34:31,926 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 17:34:31,927 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 17:34:31,927 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 17:34:31,931 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:34:31" (1/1) ... [2024-11-08 17:34:31,945 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 17:34:31,962 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_820df542-b1d8-4822-88c8-e8869d290bff/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:34:31,990 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_820df542-b1d8-4822-88c8-e8869d290bff/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 17:34:31,994 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_820df542-b1d8-4822-88c8-e8869d290bff/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 17:34:32,026 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-08 17:34:32,027 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-08 17:34:32,027 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-08 17:34:32,027 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-08 17:34:32,027 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-08 17:34:32,027 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-08 17:34:32,027 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-08 17:34:32,028 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-11-08 17:34:32,028 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-11-08 17:34:32,028 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2024-11-08 17:34:32,028 INFO L130 BoogieDeclarations]: Found specification of procedure t1_fun [2024-11-08 17:34:32,028 INFO L138 BoogieDeclarations]: Found implementation of procedure t1_fun [2024-11-08 17:34:32,028 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-08 17:34:32,029 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-08 17:34:32,029 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-08 17:34:32,029 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-08 17:34:32,029 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-08 17:34:32,029 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-08 17:34:32,029 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-08 17:34:32,029 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-08 17:34:32,030 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-08 17:34:32,030 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-11-08 17:34:32,030 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2024-11-08 17:34:32,030 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2024-11-08 17:34:32,030 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2024-11-08 17:34:32,030 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-08 17:34:32,031 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-08 17:34:32,031 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-08 17:34:32,031 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-08 17:34:32,031 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-08 17:34:32,031 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-08 17:34:32,031 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-08 17:34:32,031 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-11-08 17:34:32,032 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2024-11-08 17:34:32,032 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-08 17:34:32,032 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-08 17:34:32,032 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 17:34:32,032 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-08 17:34:32,032 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-08 17:34:32,032 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-08 17:34:32,033 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-08 17:34:32,033 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-08 17:34:32,033 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-08 17:34:32,033 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-11-08 17:34:32,033 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2024-11-08 17:34:32,033 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2024-11-08 17:34:32,033 INFO L130 BoogieDeclarations]: Found specification of procedure t3_fun [2024-11-08 17:34:32,034 INFO L138 BoogieDeclarations]: Found implementation of procedure t3_fun [2024-11-08 17:34:32,034 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 17:34:32,034 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-08 17:34:32,034 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-08 17:34:32,034 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-08 17:34:32,034 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-08 17:34:32,035 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-08 17:34:32,035 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-08 17:34:32,035 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-08 17:34:32,035 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-11-08 17:34:32,035 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 17:34:32,035 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 17:34:32,038 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-08 17:34:32,347 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 17:34:32,350 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 17:34:33,124 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-08 17:34:33,125 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 17:34:33,634 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 17:34:33,634 INFO L316 CfgBuilder]: Removed 22 assume(true) statements. [2024-11-08 17:34:33,635 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:34:33 BoogieIcfgContainer [2024-11-08 17:34:33,635 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 17:34:33,640 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 17:34:33,642 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 17:34:33,646 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 17:34:33,646 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 05:34:30" (1/3) ... [2024-11-08 17:34:33,647 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d03d8a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 05:34:33, skipping insertion in model container [2024-11-08 17:34:33,648 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:34:31" (2/3) ... [2024-11-08 17:34:33,648 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d03d8a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 05:34:33, skipping insertion in model container [2024-11-08 17:34:33,648 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:34:33" (3/3) ... [2024-11-08 17:34:33,650 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_83-list2_racing1.i [2024-11-08 17:34:33,674 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 17:34:33,675 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-08 17:34:33,675 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-08 17:34:33,830 INFO L143 ThreadInstanceAdder]: Constructed 9 joinOtherThreadTransitions. [2024-11-08 17:34:33,897 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 119 places, 155 transitions, 349 flow [2024-11-08 17:34:34,141 INFO L124 PetriNetUnfolderBase]: 158/568 cut-off events. [2024-11-08 17:34:34,142 INFO L125 PetriNetUnfolderBase]: For 36/36 co-relation queries the response was YES. [2024-11-08 17:34:34,162 INFO L83 FinitePrefix]: Finished finitePrefix Result has 622 conditions, 568 events. 158/568 cut-off events. For 36/36 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 3316 event pairs, 0 based on Foata normal form. 0/400 useless extension candidates. Maximal degree in co-relation 296. Up to 16 conditions per place. [2024-11-08 17:34:34,162 INFO L82 GeneralOperation]: Start removeDead. Operand has 119 places, 155 transitions, 349 flow [2024-11-08 17:34:34,176 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 119 places, 155 transitions, 349 flow [2024-11-08 17:34:34,193 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 17:34:34,208 INFO L333 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, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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;@2d17acb7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 17:34:34,209 INFO L334 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2024-11-08 17:34:34,222 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-08 17:34:34,222 INFO L124 PetriNetUnfolderBase]: 7/40 cut-off events. [2024-11-08 17:34:34,223 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-08 17:34:34,223 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:34:34,224 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1] [2024-11-08 17:34:34,225 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-08 17:34:34,231 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:34:34,232 INFO L85 PathProgramCache]: Analyzing trace with hash 682726933, now seen corresponding path program 1 times [2024-11-08 17:34:34,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:34:34,245 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [394161752] [2024-11-08 17:34:34,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:34:34,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:34:34,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 17:34:34,620 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 17:34:34,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 17:34:34,740 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-08 17:34:34,743 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-08 17:34:34,745 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 7 remaining) [2024-11-08 17:34:34,748 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (5 of 7 remaining) [2024-11-08 17:34:34,748 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 7 remaining) [2024-11-08 17:34:34,749 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 7 remaining) [2024-11-08 17:34:34,749 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 7 remaining) [2024-11-08 17:34:34,750 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 7 remaining) [2024-11-08 17:34:34,750 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 7 remaining) [2024-11-08 17:34:34,751 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 17:34:34,752 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-08 17:34:34,761 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-08 17:34:34,762 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-08 17:34:34,969 INFO L143 ThreadInstanceAdder]: Constructed 18 joinOtherThreadTransitions. [2024-11-08 17:34:34,984 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 203 places, 270 transitions, 624 flow [2024-11-08 17:34:35,981 INFO L124 PetriNetUnfolderBase]: 1106/3172 cut-off events. [2024-11-08 17:34:35,982 INFO L125 PetriNetUnfolderBase]: For 602/662 co-relation queries the response was YES. [2024-11-08 17:34:36,065 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3820 conditions, 3172 events. 1106/3172 cut-off events. For 602/662 co-relation queries the response was YES. Maximal size of possible extension queue 150. Compared 24806 event pairs, 11 based on Foata normal form. 0/2323 useless extension candidates. Maximal degree in co-relation 2059. Up to 192 conditions per place. [2024-11-08 17:34:36,065 INFO L82 GeneralOperation]: Start removeDead. Operand has 203 places, 270 transitions, 624 flow [2024-11-08 17:34:36,232 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 203 places, 270 transitions, 624 flow [2024-11-08 17:34:36,235 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 17:34:36,239 INFO L333 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, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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;@2d17acb7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 17:34:36,239 INFO L334 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2024-11-08 17:34:36,262 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-08 17:34:36,263 INFO L124 PetriNetUnfolderBase]: 23/126 cut-off events. [2024-11-08 17:34:36,263 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-08 17:34:36,264 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:34:36,264 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 2, 1, 1, 1, 1] [2024-11-08 17:34:36,264 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2024-11-08 17:34:36,265 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:34:36,266 INFO L85 PathProgramCache]: Analyzing trace with hash -1159950299, now seen corresponding path program 1 times [2024-11-08 17:34:36,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:34:36,267 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431456321] [2024-11-08 17:34:36,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:34:36,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:34:36,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 17:34:36,402 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 17:34:36,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 17:34:36,498 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-08 17:34:36,499 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-08 17:34:36,499 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 9 remaining) [2024-11-08 17:34:36,499 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (7 of 9 remaining) [2024-11-08 17:34:36,504 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION (6 of 9 remaining) [2024-11-08 17:34:36,504 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 9 remaining) [2024-11-08 17:34:36,505 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 9 remaining) [2024-11-08 17:34:36,505 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 9 remaining) [2024-11-08 17:34:36,505 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 9 remaining) [2024-11-08 17:34:36,506 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 9 remaining) [2024-11-08 17:34:36,506 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 9 remaining) [2024-11-08 17:34:36,506 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 17:34:36,506 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-08 17:34:36,508 WARN L244 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-08 17:34:36,512 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-11-08 17:34:36,737 INFO L143 ThreadInstanceAdder]: Constructed 27 joinOtherThreadTransitions. [2024-11-08 17:34:36,746 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 287 places, 385 transitions, 905 flow [2024-11-08 17:34:46,161 INFO L124 PetriNetUnfolderBase]: 8924/19648 cut-off events. [2024-11-08 17:34:46,163 INFO L125 PetriNetUnfolderBase]: For 7059/7327 co-relation queries the response was YES. [2024-11-08 17:34:46,905 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26759 conditions, 19648 events. 8924/19648 cut-off events. For 7059/7327 co-relation queries the response was YES. Maximal size of possible extension queue 505. Compared 173858 event pairs, 1536 based on Foata normal form. 0/15440 useless extension candidates. Maximal degree in co-relation 13532. Up to 2304 conditions per place. [2024-11-08 17:34:46,905 INFO L82 GeneralOperation]: Start removeDead. Operand has 287 places, 385 transitions, 905 flow [2024-11-08 17:34:47,927 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 287 places, 385 transitions, 905 flow [2024-11-08 17:34:47,930 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 17:34:47,931 INFO L333 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, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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;@2d17acb7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 17:34:47,931 INFO L334 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2024-11-08 17:34:47,992 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-08 17:34:47,992 INFO L124 PetriNetUnfolderBase]: 57/303 cut-off events. [2024-11-08 17:34:47,993 INFO L125 PetriNetUnfolderBase]: For 20/20 co-relation queries the response was YES. [2024-11-08 17:34:47,993 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:34:47,993 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1] [2024-11-08 17:34:47,994 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2024-11-08 17:34:47,994 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:34:47,995 INFO L85 PathProgramCache]: Analyzing trace with hash 861902214, now seen corresponding path program 1 times [2024-11-08 17:34:47,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:34:47,996 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [836938677] [2024-11-08 17:34:47,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:34:47,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:34:48,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 17:34:48,083 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 17:34:48,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 17:34:48,153 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-08 17:34:48,157 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-08 17:34:48,157 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 11 remaining) [2024-11-08 17:34:48,158 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (9 of 11 remaining) [2024-11-08 17:34:48,158 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION (8 of 11 remaining) [2024-11-08 17:34:48,159 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 11 remaining) [2024-11-08 17:34:48,159 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 11 remaining) [2024-11-08 17:34:48,160 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (5 of 11 remaining) [2024-11-08 17:34:48,160 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 11 remaining) [2024-11-08 17:34:48,161 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 11 remaining) [2024-11-08 17:34:48,161 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 11 remaining) [2024-11-08 17:34:48,161 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 11 remaining) [2024-11-08 17:34:48,162 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 11 remaining) [2024-11-08 17:34:48,162 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 17:34:48,162 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-08 17:34:48,165 WARN L244 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-08 17:34:48,167 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2024-11-08 17:34:48,470 INFO L143 ThreadInstanceAdder]: Constructed 36 joinOtherThreadTransitions. [2024-11-08 17:34:48,479 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 371 places, 500 transitions, 1192 flow