./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-races/race-1_2-join.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 4fc63b2a 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_8244a17e-8dc9-4927-a6c1-c1a5b10a6333/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8244a17e-8dc9-4927-a6c1-c1a5b10a6333/bin/uautomizer-verify-4GaUIPS5ZU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8244a17e-8dc9-4927-a6c1-c1a5b10a6333/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8244a17e-8dc9-4927-a6c1-c1a5b10a6333/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-races/race-1_2-join.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8244a17e-8dc9-4927-a6c1-c1a5b10a6333/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8244a17e-8dc9-4927-a6c1-c1a5b10a6333/bin/uautomizer-verify-4GaUIPS5ZU --witnessprinter.witness.filename witness --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash fd4c3d19582748238e9ca587d159d6e8fc23db581cd4de03be73dc785992e03f --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 22:03:05,591 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 22:03:05,690 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8244a17e-8dc9-4927-a6c1-c1a5b10a6333/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-10-31 22:03:05,698 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 22:03:05,699 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 22:03:05,739 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 22:03:05,740 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 22:03:05,741 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 22:03:05,742 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-31 22:03:05,743 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-31 22:03:05,744 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-31 22:03:05,744 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-31 22:03:05,745 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 22:03:05,746 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 22:03:05,746 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 22:03:05,749 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 22:03:05,750 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-31 22:03:05,750 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 22:03:05,751 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-31 22:03:05,751 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 22:03:05,751 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-10-31 22:03:05,755 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-10-31 22:03:05,772 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-10-31 22:03:05,772 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-31 22:03:05,772 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-31 22:03:05,773 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 22:03:05,773 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-31 22:03:05,773 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-31 22:03:05,774 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 22:03:05,774 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 22:03:05,774 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 22:03:05,775 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-31 22:03:05,775 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-31 22:03:05,775 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:03:05,778 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 22:03:05,779 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-31 22:03:05,780 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 22:03:05,780 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-31 22:03:05,781 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-31 22:03:05,781 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-31 22:03:05,781 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-31 22:03:05,782 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-31 22:03:05,782 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_8244a17e-8dc9-4927-a6c1-c1a5b10a6333/bin/uautomizer-verify-4GaUIPS5ZU/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8244a17e-8dc9-4927-a6c1-c1a5b10a6333/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fd4c3d19582748238e9ca587d159d6e8fc23db581cd4de03be73dc785992e03f [2024-10-31 22:03:06,090 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 22:03:06,123 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 22:03:06,126 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 22:03:06,128 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 22:03:06,128 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 22:03:06,130 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8244a17e-8dc9-4927-a6c1-c1a5b10a6333/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/ldv-races/race-1_2-join.i Unable to find full path for "g++" [2024-10-31 22:03:08,374 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 22:03:08,780 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 22:03:08,784 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8244a17e-8dc9-4927-a6c1-c1a5b10a6333/sv-benchmarks/c/ldv-races/race-1_2-join.i [2024-10-31 22:03:08,815 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8244a17e-8dc9-4927-a6c1-c1a5b10a6333/bin/uautomizer-verify-4GaUIPS5ZU/data/3e36dc97d/8e0db4eecaf14df5a6c1b6b25fbeb5b5/FLAGf5e293f83 [2024-10-31 22:03:08,836 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8244a17e-8dc9-4927-a6c1-c1a5b10a6333/bin/uautomizer-verify-4GaUIPS5ZU/data/3e36dc97d/8e0db4eecaf14df5a6c1b6b25fbeb5b5 [2024-10-31 22:03:08,839 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 22:03:08,840 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 22:03:08,842 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 22:03:08,842 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 22:03:08,848 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 22:03:08,849 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:03:08" (1/1) ... [2024-10-31 22:03:08,852 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54278b89 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:03:08, skipping insertion in model container [2024-10-31 22:03:08,853 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:03:08" (1/1) ... [2024-10-31 22:03:08,926 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 22:03:09,862 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:03:09,884 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 22:03:10,041 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:03:10,253 INFO L204 MainTranslator]: Completed translation [2024-10-31 22:03:10,254 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:03:10 WrapperNode [2024-10-31 22:03:10,254 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 22:03:10,255 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 22:03:10,256 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 22:03:10,256 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 22:03:10,266 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:03:10" (1/1) ... [2024-10-31 22:03:10,310 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:03:10" (1/1) ... [2024-10-31 22:03:10,355 INFO L138 Inliner]: procedures = 483, calls = 31, calls flagged for inlining = 9, calls inlined = 12, statements flattened = 93 [2024-10-31 22:03:10,355 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 22:03:10,356 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 22:03:10,357 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 22:03:10,358 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 22:03:10,369 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:03:10" (1/1) ... [2024-10-31 22:03:10,370 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:03:10" (1/1) ... [2024-10-31 22:03:10,373 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:03:10" (1/1) ... [2024-10-31 22:03:10,405 INFO L175 MemorySlicer]: Split 8 memory accesses to 3 slices as follows [2, 1, 5]. 63 percent of accesses are in the largest equivalence class. The 7 initializations are split as follows [2, 0, 5]. The 1 writes are split as follows [0, 1, 0]. [2024-10-31 22:03:10,409 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:03:10" (1/1) ... [2024-10-31 22:03:10,410 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:03:10" (1/1) ... [2024-10-31 22:03:10,428 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:03:10" (1/1) ... [2024-10-31 22:03:10,430 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:03:10" (1/1) ... [2024-10-31 22:03:10,438 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:03:10" (1/1) ... [2024-10-31 22:03:10,444 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:03:10" (1/1) ... [2024-10-31 22:03:10,456 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 22:03:10,457 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 22:03:10,460 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 22:03:10,461 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 22:03:10,462 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:03:10" (1/1) ... [2024-10-31 22:03:10,477 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:03:10,491 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8244a17e-8dc9-4927-a6c1-c1a5b10a6333/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:03:10,515 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8244a17e-8dc9-4927-a6c1-c1a5b10a6333/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-31 22:03:10,520 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8244a17e-8dc9-4927-a6c1-c1a5b10a6333/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-31 22:03:10,562 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-10-31 22:03:10,562 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-31 22:03:10,562 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-10-31 22:03:10,563 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-10-31 22:03:10,563 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-31 22:03:10,564 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-10-31 22:03:10,564 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-10-31 22:03:10,564 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-10-31 22:03:10,564 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 22:03:10,564 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 22:03:10,566 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-31 22:03:10,567 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-10-31 22:03:10,567 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-10-31 22:03:10,567 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-10-31 22:03:10,567 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-31 22:03:10,569 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-31 22:03:10,569 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-10-31 22:03:10,571 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-31 22:03:10,975 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 22:03:10,977 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 22:03:11,215 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-31 22:03:11,215 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 22:03:11,449 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 22:03:11,449 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-31 22:03:11,450 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:03:11 BoogieIcfgContainer [2024-10-31 22:03:11,450 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 22:03:11,455 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-31 22:03:11,455 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-31 22:03:11,459 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-31 22:03:11,459 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.10 10:03:08" (1/3) ... [2024-10-31 22:03:11,460 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59777898 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:03:11, skipping insertion in model container [2024-10-31 22:03:11,461 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:03:10" (2/3) ... [2024-10-31 22:03:11,463 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59777898 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:03:11, skipping insertion in model container [2024-10-31 22:03:11,463 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:03:11" (3/3) ... [2024-10-31 22:03:11,464 INFO L112 eAbstractionObserver]: Analyzing ICFG race-1_2-join.i [2024-10-31 22:03:11,485 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-31 22:03:11,486 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2024-10-31 22:03:11,486 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-31 22:03:11,536 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-10-31 22:03:11,582 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 46 places, 50 transitions, 107 flow [2024-10-31 22:03:11,618 INFO L124 PetriNetUnfolderBase]: 7/55 cut-off events. [2024-10-31 22:03:11,619 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-31 22:03:11,621 INFO L83 FinitePrefix]: Finished finitePrefix Result has 60 conditions, 55 events. 7/55 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 109 event pairs, 0 based on Foata normal form. 0/38 useless extension candidates. Maximal degree in co-relation 25. Up to 3 conditions per place. [2024-10-31 22:03:11,622 INFO L82 GeneralOperation]: Start removeDead. Operand has 46 places, 50 transitions, 107 flow [2024-10-31 22:03:11,626 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 44 places, 48 transitions, 102 flow [2024-10-31 22:03:11,636 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 22:03:11,642 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=None, 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;@f9a7c5a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 22:03:11,643 INFO L334 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2024-10-31 22:03:11,650 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-31 22:03:11,650 INFO L124 PetriNetUnfolderBase]: 2/10 cut-off events. [2024-10-31 22:03:11,650 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-31 22:03:11,650 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:03:11,651 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-10-31 22:03:11,652 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-31 22:03:11,658 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:03:11,658 INFO L85 PathProgramCache]: Analyzing trace with hash 10276253, now seen corresponding path program 1 times [2024-10-31 22:03:11,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:03:11,671 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2145066962] [2024-10-31 22:03:11,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:03:11,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:03:11,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:03:12,213 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:03:12,233 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:03:12,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2145066962] [2024-10-31 22:03:12,234 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2145066962] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:03:12,234 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:03:12,234 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:03:12,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619714812] [2024-10-31 22:03:12,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:03:12,260 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:03:12,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:03:12,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:03:12,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:03:12,324 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 50 [2024-10-31 22:03:12,326 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 48 transitions, 102 flow. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:03:12,329 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:03:12,329 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 50 [2024-10-31 22:03:12,330 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:03:12,446 INFO L124 PetriNetUnfolderBase]: 19/79 cut-off events. [2024-10-31 22:03:12,446 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-31 22:03:12,447 INFO L83 FinitePrefix]: Finished finitePrefix Result has 145 conditions, 79 events. 19/79 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 257 event pairs, 18 based on Foata normal form. 0/67 useless extension candidates. Maximal degree in co-relation 105. Up to 55 conditions per place. [2024-10-31 22:03:12,449 INFO L140 encePairwiseOnDemand]: 41/50 looper letters, 15 selfloop transitions, 6 changer transitions 0/30 dead transitions. [2024-10-31 22:03:12,450 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 30 transitions, 108 flow [2024-10-31 22:03:12,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:03:12,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:03:12,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 72 transitions. [2024-10-31 22:03:12,465 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.48 [2024-10-31 22:03:12,468 INFO L175 Difference]: Start difference. First operand has 44 places, 48 transitions, 102 flow. Second operand 3 states and 72 transitions. [2024-10-31 22:03:12,470 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 30 transitions, 108 flow [2024-10-31 22:03:12,472 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 30 transitions, 104 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:03:12,475 INFO L231 Difference]: Finished difference. Result has 32 places, 30 transitions, 74 flow [2024-10-31 22:03:12,477 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=62, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=74, PETRI_PLACES=32, PETRI_TRANSITIONS=30} [2024-10-31 22:03:12,483 INFO L277 CegarLoopForPetriNet]: 44 programPoint places, -12 predicate places. [2024-10-31 22:03:12,484 INFO L471 AbstractCegarLoop]: Abstraction has has 32 places, 30 transitions, 74 flow [2024-10-31 22:03:12,484 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:03:12,485 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:03:12,485 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:03:12,485 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-31 22:03:12,485 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-31 22:03:12,487 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:03:12,487 INFO L85 PathProgramCache]: Analyzing trace with hash -1415093346, now seen corresponding path program 1 times [2024-10-31 22:03:12,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:03:12,488 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [184951119] [2024-10-31 22:03:12,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:03:12,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:03:12,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:03:12,712 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:03:12,713 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:03:12,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [184951119] [2024-10-31 22:03:12,714 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [184951119] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:03:12,714 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:03:12,715 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:03:12,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1206722048] [2024-10-31 22:03:12,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:03:12,717 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:03:12,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:03:12,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:03:12,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:03:12,723 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 50 [2024-10-31 22:03:12,723 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 30 transitions, 74 flow. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:03:12,723 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:03:12,724 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 50 [2024-10-31 22:03:12,724 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:03:12,836 INFO L124 PetriNetUnfolderBase]: 35/127 cut-off events. [2024-10-31 22:03:12,836 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-10-31 22:03:12,837 INFO L83 FinitePrefix]: Finished finitePrefix Result has 237 conditions, 127 events. 35/127 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 469 event pairs, 12 based on Foata normal form. 0/112 useless extension candidates. Maximal degree in co-relation 202. Up to 56 conditions per place. [2024-10-31 22:03:12,838 INFO L140 encePairwiseOnDemand]: 45/50 looper letters, 26 selfloop transitions, 4 changer transitions 0/40 dead transitions. [2024-10-31 22:03:12,838 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 40 transitions, 157 flow [2024-10-31 22:03:12,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:03:12,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:03:12,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 82 transitions. [2024-10-31 22:03:12,843 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5466666666666666 [2024-10-31 22:03:12,843 INFO L175 Difference]: Start difference. First operand has 32 places, 30 transitions, 74 flow. Second operand 3 states and 82 transitions. [2024-10-31 22:03:12,843 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 40 transitions, 157 flow [2024-10-31 22:03:12,844 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 40 transitions, 143 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:03:12,847 INFO L231 Difference]: Finished difference. Result has 34 places, 33 transitions, 92 flow [2024-10-31 22:03:12,847 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=62, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=92, PETRI_PLACES=34, PETRI_TRANSITIONS=33} [2024-10-31 22:03:12,848 INFO L277 CegarLoopForPetriNet]: 44 programPoint places, -10 predicate places. [2024-10-31 22:03:12,849 INFO L471 AbstractCegarLoop]: Abstraction has has 34 places, 33 transitions, 92 flow [2024-10-31 22:03:12,849 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:03:12,849 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:03:12,849 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:03:12,849 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-31 22:03:12,850 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-31 22:03:12,850 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:03:12,850 INFO L85 PathProgramCache]: Analyzing trace with hash 1421886874, now seen corresponding path program 1 times [2024-10-31 22:03:12,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:03:12,851 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1578063413] [2024-10-31 22:03:12,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:03:12,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:03:12,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:03:12,965 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:03:12,965 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:03:12,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1578063413] [2024-10-31 22:03:12,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1578063413] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:03:12,966 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:03:12,966 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-31 22:03:12,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1266643905] [2024-10-31 22:03:12,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:03:12,967 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:03:12,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:03:12,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:03:12,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:03:12,972 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 50 [2024-10-31 22:03:12,972 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 33 transitions, 92 flow. Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:03:12,972 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:03:12,972 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 50 [2024-10-31 22:03:12,973 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:03:13,044 INFO L124 PetriNetUnfolderBase]: 27/107 cut-off events. [2024-10-31 22:03:13,044 INFO L125 PetriNetUnfolderBase]: For 17/19 co-relation queries the response was YES. [2024-10-31 22:03:13,045 INFO L83 FinitePrefix]: Finished finitePrefix Result has 223 conditions, 107 events. 27/107 cut-off events. For 17/19 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 363 event pairs, 18 based on Foata normal form. 10/104 useless extension candidates. Maximal degree in co-relation 46. Up to 62 conditions per place. [2024-10-31 22:03:13,045 INFO L140 encePairwiseOnDemand]: 47/50 looper letters, 19 selfloop transitions, 2 changer transitions 4/36 dead transitions. [2024-10-31 22:03:13,046 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 36 transitions, 146 flow [2024-10-31 22:03:13,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:03:13,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:03:13,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 77 transitions. [2024-10-31 22:03:13,048 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5133333333333333 [2024-10-31 22:03:13,048 INFO L175 Difference]: Start difference. First operand has 34 places, 33 transitions, 92 flow. Second operand 3 states and 77 transitions. [2024-10-31 22:03:13,048 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 36 transitions, 146 flow [2024-10-31 22:03:13,049 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 36 transitions, 138 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:03:13,050 INFO L231 Difference]: Finished difference. Result has 35 places, 29 transitions, 84 flow [2024-10-31 22:03:13,050 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=84, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=84, PETRI_PLACES=35, PETRI_TRANSITIONS=29} [2024-10-31 22:03:13,051 INFO L277 CegarLoopForPetriNet]: 44 programPoint places, -9 predicate places. [2024-10-31 22:03:13,051 INFO L471 AbstractCegarLoop]: Abstraction has has 35 places, 29 transitions, 84 flow [2024-10-31 22:03:13,052 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:03:13,052 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:03:13,052 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:03:13,052 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-31 22:03:13,053 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-31 22:03:13,053 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:03:13,053 INFO L85 PathProgramCache]: Analyzing trace with hash 2041244460, now seen corresponding path program 1 times [2024-10-31 22:03:13,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:03:13,054 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1724018137] [2024-10-31 22:03:13,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:03:13,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:03:13,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:03:13,080 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:03:13,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:03:13,114 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:03:13,115 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-31 22:03:13,116 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (7 of 8 remaining) [2024-10-31 22:03:13,118 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (6 of 8 remaining) [2024-10-31 22:03:13,119 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (5 of 8 remaining) [2024-10-31 22:03:13,119 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK (4 of 8 remaining) [2024-10-31 22:03:13,119 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 8 remaining) [2024-10-31 22:03:13,120 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 8 remaining) [2024-10-31 22:03:13,120 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK (1 of 8 remaining) [2024-10-31 22:03:13,120 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 8 remaining) [2024-10-31 22:03:13,121 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-31 22:03:13,121 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-10-31 22:03:13,155 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-10-31 22:03:13,155 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-10-31 22:03:13,163 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.10 10:03:13 BasicIcfg [2024-10-31 22:03:13,164 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-31 22:03:13,165 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-31 22:03:13,165 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-31 22:03:13,166 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-31 22:03:13,166 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:03:11" (3/4) ... [2024-10-31 22:03:13,170 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-10-31 22:03:13,171 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-31 22:03:13,173 INFO L158 Benchmark]: Toolchain (without parser) took 4331.53ms. Allocated memory was 161.5MB in the beginning and 207.6MB in the end (delta: 46.1MB). Free memory was 114.3MB in the beginning and 87.6MB in the end (delta: 26.7MB). Peak memory consumption was 73.9MB. Max. memory is 16.1GB. [2024-10-31 22:03:13,173 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 161.5MB. Free memory is still 128.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-31 22:03:13,174 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1412.88ms. Allocated memory was 161.5MB in the beginning and 207.6MB in the end (delta: 46.1MB). Free memory was 114.3MB in the beginning and 167.1MB in the end (delta: -52.8MB). Peak memory consumption was 72.0MB. Max. memory is 16.1GB. [2024-10-31 22:03:13,174 INFO L158 Benchmark]: Boogie Procedure Inliner took 100.28ms. Allocated memory is still 207.6MB. Free memory was 167.1MB in the beginning and 163.9MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-31 22:03:13,175 INFO L158 Benchmark]: Boogie Preprocessor took 99.94ms. Allocated memory is still 207.6MB. Free memory was 163.9MB in the beginning and 159.7MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-31 22:03:13,175 INFO L158 Benchmark]: RCFGBuilder took 992.97ms. Allocated memory is still 207.6MB. Free memory was 159.7MB in the beginning and 126.2MB in the end (delta: 33.6MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2024-10-31 22:03:13,180 INFO L158 Benchmark]: TraceAbstraction took 1709.23ms. Allocated memory is still 207.6MB. Free memory was 126.2MB in the beginning and 87.6MB in the end (delta: 38.6MB). Peak memory consumption was 37.6MB. Max. memory is 16.1GB. [2024-10-31 22:03:13,180 INFO L158 Benchmark]: Witness Printer took 6.20ms. Allocated memory is still 207.6MB. Free memory is still 87.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-31 22:03:13,182 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 161.5MB. Free memory is still 128.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1412.88ms. Allocated memory was 161.5MB in the beginning and 207.6MB in the end (delta: 46.1MB). Free memory was 114.3MB in the beginning and 167.1MB in the end (delta: -52.8MB). Peak memory consumption was 72.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 100.28ms. Allocated memory is still 207.6MB. Free memory was 167.1MB in the beginning and 163.9MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 99.94ms. Allocated memory is still 207.6MB. Free memory was 163.9MB in the beginning and 159.7MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 992.97ms. Allocated memory is still 207.6MB. Free memory was 159.7MB in the beginning and 126.2MB in the end (delta: 33.6MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * TraceAbstraction took 1709.23ms. Allocated memory is still 207.6MB. Free memory was 126.2MB in the beginning and 87.6MB in the end (delta: 38.6MB). Peak memory consumption was 37.6MB. Max. memory is 16.1GB. * Witness Printer took 6.20ms. Allocated memory is still 207.6MB. Free memory is still 87.6MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 1693]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 1693. Possible FailurePath: [L1696] 0 pthread_t t1; [L1697] 0 pthread_mutex_t mutex; [L1697] 0 pthread_mutex_t mutex; [L1697] 0 pthread_mutex_t mutex; [L1697] 0 pthread_mutex_t mutex; [L1697] 0 pthread_mutex_t mutex; [L1697] 0 pthread_mutex_t mutex; [L1698] 0 int pdev; [L1734] CALL 0 module_init() [L1709] 0 pdev = 1 [L1710] CALL 0 ldv_assert(pdev==1) [L1695] COND FALSE 0 !(!expression) VAL [\old(expression)=1, expression=1, mutex={3:0}, pdev=1, t1=0] [L1710] RET 0 ldv_assert(pdev==1) [L1711] COND TRUE 0 __VERIFIER_nondet_int() [L1712] FCALL, FORK 0 pthread_create(&t1, ((void *)0), thread1, ((void *)0)) VAL [\old(arg)={0:0}, mutex={3:0}, pdev=1, t1=-1] [L1714] 0 pdev = 2 VAL [\old(arg)={0:0}, arg={0:0}, mutex={3:0}, pdev=2, t1=-1] [L1702] 1 pdev = 6 VAL [\old(arg)={0:0}, arg={0:0}, mutex={3:0}, pdev=6, t1=-1] [L1717] CALL 0 ldv_assert(pdev==2) [L1695] COND TRUE 0 !expression [L1695] CALL 0 reach_error() [L1693] COND FALSE 0 !(0) [L1693] 0 __assert_fail ("0", "race-1_2-join.c", 10, __extension__ __PRETTY_FUNCTION__) VAL [\old(arg)={0:0}, arg={0:0}, mutex={3:0}, pdev=6, t1=-1] - UnprovableResult [Line: 1693]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1693]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1733]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1693]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1712]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 51 locations, 8 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 1.5s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 29 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 20 mSDsluCounter, 2 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 8 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 110 IncrementalHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8 mSolverCounterUnsat, 2 mSDtfsCounter, 110 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=102occurred in iteration=0, InterpolantAutomatonStates: 9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 34 NumberOfCodeBlocks, 34 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 19 ConstructedInterpolants, 0 QuantifiedInterpolants, 42 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-10-31 22:03:13,223 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8244a17e-8dc9-4927-a6c1-c1a5b10a6333/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### 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_8244a17e-8dc9-4927-a6c1-c1a5b10a6333/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8244a17e-8dc9-4927-a6c1-c1a5b10a6333/bin/uautomizer-verify-4GaUIPS5ZU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8244a17e-8dc9-4927-a6c1-c1a5b10a6333/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8244a17e-8dc9-4927-a6c1-c1a5b10a6333/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-races/race-1_2-join.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8244a17e-8dc9-4927-a6c1-c1a5b10a6333/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8244a17e-8dc9-4927-a6c1-c1a5b10a6333/bin/uautomizer-verify-4GaUIPS5ZU --witnessprinter.witness.filename witness --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash fd4c3d19582748238e9ca587d159d6e8fc23db581cd4de03be73dc785992e03f --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 22:03:15,660 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 22:03:15,755 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8244a17e-8dc9-4927-a6c1-c1a5b10a6333/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2024-10-31 22:03:15,764 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 22:03:15,764 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 22:03:15,805 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 22:03:15,805 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 22:03:15,806 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 22:03:15,807 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-31 22:03:15,810 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-31 22:03:15,810 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-31 22:03:15,810 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-31 22:03:15,811 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 22:03:15,815 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 22:03:15,816 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 22:03:15,816 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 22:03:15,816 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-31 22:03:15,817 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 22:03:15,817 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-31 22:03:15,817 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 22:03:15,818 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-10-31 22:03:15,818 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-10-31 22:03:15,818 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-10-31 22:03:15,819 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-31 22:03:15,819 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-31 22:03:15,819 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-10-31 22:03:15,819 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 22:03:15,819 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-10-31 22:03:15,820 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-31 22:03:15,820 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-31 22:03:15,820 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 22:03:15,820 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 22:03:15,821 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 22:03:15,821 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-31 22:03:15,821 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-31 22:03:15,824 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:03:15,825 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 22:03:15,826 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-31 22:03:15,826 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-10-31 22:03:15,826 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-10-31 22:03:15,826 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-31 22:03:15,827 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-31 22:03:15,841 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-31 22:03:15,841 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-31 22:03:15,843 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-10-31 22:03:15,843 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_8244a17e-8dc9-4927-a6c1-c1a5b10a6333/bin/uautomizer-verify-4GaUIPS5ZU/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8244a17e-8dc9-4927-a6c1-c1a5b10a6333/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fd4c3d19582748238e9ca587d159d6e8fc23db581cd4de03be73dc785992e03f [2024-10-31 22:03:16,262 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 22:03:16,283 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 22:03:16,286 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 22:03:16,287 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 22:03:16,289 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 22:03:16,291 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8244a17e-8dc9-4927-a6c1-c1a5b10a6333/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/ldv-races/race-1_2-join.i Unable to find full path for "g++" [2024-10-31 22:03:18,469 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 22:03:19,029 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 22:03:19,032 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8244a17e-8dc9-4927-a6c1-c1a5b10a6333/sv-benchmarks/c/ldv-races/race-1_2-join.i [2024-10-31 22:03:19,061 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8244a17e-8dc9-4927-a6c1-c1a5b10a6333/bin/uautomizer-verify-4GaUIPS5ZU/data/0de19cbdf/cc674ff9516a459ba968f7af000208eb/FLAG7abf58d8c [2024-10-31 22:03:19,553 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8244a17e-8dc9-4927-a6c1-c1a5b10a6333/bin/uautomizer-verify-4GaUIPS5ZU/data/0de19cbdf/cc674ff9516a459ba968f7af000208eb [2024-10-31 22:03:19,555 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 22:03:19,557 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 22:03:19,559 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 22:03:19,559 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 22:03:19,566 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 22:03:19,566 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:03:19" (1/1) ... [2024-10-31 22:03:19,568 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@bcd82c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:03:19, skipping insertion in model container [2024-10-31 22:03:19,568 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:03:19" (1/1) ... [2024-10-31 22:03:19,638 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 22:03:20,748 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:03:20,806 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 22:03:20,880 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:03:21,054 INFO L204 MainTranslator]: Completed translation [2024-10-31 22:03:21,054 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:03:21 WrapperNode [2024-10-31 22:03:21,054 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 22:03:21,056 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 22:03:21,056 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 22:03:21,056 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 22:03:21,065 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:03:21" (1/1) ... [2024-10-31 22:03:21,110 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:03:21" (1/1) ... [2024-10-31 22:03:21,151 INFO L138 Inliner]: procedures = 487, calls = 31, calls flagged for inlining = 9, calls inlined = 12, statements flattened = 92 [2024-10-31 22:03:21,152 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 22:03:21,153 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 22:03:21,153 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 22:03:21,153 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 22:03:21,165 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:03:21" (1/1) ... [2024-10-31 22:03:21,165 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:03:21" (1/1) ... [2024-10-31 22:03:21,177 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:03:21" (1/1) ... [2024-10-31 22:03:21,207 INFO L175 MemorySlicer]: Split 8 memory accesses to 3 slices as follows [2, 5, 1]. 63 percent of accesses are in the largest equivalence class. The 7 initializations are split as follows [2, 5, 0]. The 1 writes are split as follows [0, 0, 1]. [2024-10-31 22:03:21,207 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:03:21" (1/1) ... [2024-10-31 22:03:21,207 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:03:21" (1/1) ... [2024-10-31 22:03:21,226 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:03:21" (1/1) ... [2024-10-31 22:03:21,233 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:03:21" (1/1) ... [2024-10-31 22:03:21,241 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:03:21" (1/1) ... [2024-10-31 22:03:21,250 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:03:21" (1/1) ... [2024-10-31 22:03:21,257 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 22:03:21,258 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 22:03:21,258 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 22:03:21,259 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 22:03:21,260 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:03:21" (1/1) ... [2024-10-31 22:03:21,274 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:03:21,288 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8244a17e-8dc9-4927-a6c1-c1a5b10a6333/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:03:21,306 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8244a17e-8dc9-4927-a6c1-c1a5b10a6333/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-31 22:03:21,310 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8244a17e-8dc9-4927-a6c1-c1a5b10a6333/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-31 22:03:21,343 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-10-31 22:03:21,343 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-31 22:03:21,343 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-10-31 22:03:21,343 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-10-31 22:03:21,343 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-10-31 22:03:21,343 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#0 [2024-10-31 22:03:21,343 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#1 [2024-10-31 22:03:21,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#2 [2024-10-31 22:03:21,345 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-10-31 22:03:21,345 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-10-31 22:03:21,346 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-31 22:03:21,346 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-10-31 22:03:21,346 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-10-31 22:03:21,346 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-10-31 22:03:21,346 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 22:03:21,346 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 22:03:21,346 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-31 22:03:21,346 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-10-31 22:03:21,347 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-10-31 22:03:21,347 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-10-31 22:03:21,350 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-31 22:03:21,745 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 22:03:21,748 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 22:03:22,007 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-31 22:03:22,008 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 22:03:22,228 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 22:03:22,228 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-31 22:03:22,229 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:03:22 BoogieIcfgContainer [2024-10-31 22:03:22,229 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 22:03:22,231 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-31 22:03:22,231 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-31 22:03:22,235 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-31 22:03:22,235 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.10 10:03:19" (1/3) ... [2024-10-31 22:03:22,236 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b2acb5c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:03:22, skipping insertion in model container [2024-10-31 22:03:22,236 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:03:21" (2/3) ... [2024-10-31 22:03:22,238 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b2acb5c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:03:22, skipping insertion in model container [2024-10-31 22:03:22,238 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:03:22" (3/3) ... [2024-10-31 22:03:22,239 INFO L112 eAbstractionObserver]: Analyzing ICFG race-1_2-join.i [2024-10-31 22:03:22,268 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-31 22:03:22,269 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2024-10-31 22:03:22,269 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-31 22:03:22,313 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-10-31 22:03:22,360 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 46 places, 50 transitions, 107 flow [2024-10-31 22:03:22,397 INFO L124 PetriNetUnfolderBase]: 7/55 cut-off events. [2024-10-31 22:03:22,397 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-31 22:03:22,402 INFO L83 FinitePrefix]: Finished finitePrefix Result has 60 conditions, 55 events. 7/55 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 108 event pairs, 0 based on Foata normal form. 0/38 useless extension candidates. Maximal degree in co-relation 25. Up to 3 conditions per place. [2024-10-31 22:03:22,402 INFO L82 GeneralOperation]: Start removeDead. Operand has 46 places, 50 transitions, 107 flow [2024-10-31 22:03:22,407 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 44 places, 48 transitions, 102 flow [2024-10-31 22:03:22,420 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 22:03:22,429 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=None, 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;@6ee8f048, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 22:03:22,430 INFO L334 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2024-10-31 22:03:22,439 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-31 22:03:22,439 INFO L124 PetriNetUnfolderBase]: 2/10 cut-off events. [2024-10-31 22:03:22,439 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-31 22:03:22,440 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:03:22,440 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-10-31 22:03:22,441 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-31 22:03:22,447 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:03:22,447 INFO L85 PathProgramCache]: Analyzing trace with hash 10274331, now seen corresponding path program 1 times [2024-10-31 22:03:22,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-31 22:03:22,466 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [774357100] [2024-10-31 22:03:22,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:03:22,467 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-31 22:03:22,467 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8244a17e-8dc9-4927-a6c1-c1a5b10a6333/bin/uautomizer-verify-4GaUIPS5ZU/mathsat [2024-10-31 22:03:22,471 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8244a17e-8dc9-4927-a6c1-c1a5b10a6333/bin/uautomizer-verify-4GaUIPS5ZU/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-31 22:03:22,479 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8244a17e-8dc9-4927-a6c1-c1a5b10a6333/bin/uautomizer-verify-4GaUIPS5ZU/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-10-31 22:03:22,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:03:22,652 INFO L255 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-31 22:03:22,656 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:03:22,715 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:03:22,715 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-31 22:03:22,717 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-31 22:03:22,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [774357100] [2024-10-31 22:03:22,718 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [774357100] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:03:22,719 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:03:22,719 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:03:22,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1051102981] [2024-10-31 22:03:22,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:03:22,732 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:03:22,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-31 22:03:22,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:03:22,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:03:22,787 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 50 [2024-10-31 22:03:22,789 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 48 transitions, 102 flow. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:03:22,790 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:03:22,790 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 50 [2024-10-31 22:03:22,792 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:03:22,913 INFO L124 PetriNetUnfolderBase]: 19/79 cut-off events. [2024-10-31 22:03:22,914 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-31 22:03:22,914 INFO L83 FinitePrefix]: Finished finitePrefix Result has 142 conditions, 79 events. 19/79 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 260 event pairs, 18 based on Foata normal form. 3/70 useless extension candidates. Maximal degree in co-relation 105. Up to 55 conditions per place. [2024-10-31 22:03:22,916 INFO L140 encePairwiseOnDemand]: 41/50 looper letters, 12 selfloop transitions, 6 changer transitions 0/30 dead transitions. [2024-10-31 22:03:22,916 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 30 transitions, 102 flow [2024-10-31 22:03:22,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:03:22,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:03:22,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 78 transitions. [2024-10-31 22:03:22,931 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.52 [2024-10-31 22:03:22,936 INFO L175 Difference]: Start difference. First operand has 44 places, 48 transitions, 102 flow. Second operand 3 states and 78 transitions. [2024-10-31 22:03:22,937 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 30 transitions, 102 flow [2024-10-31 22:03:22,940 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 30 transitions, 98 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:03:22,942 INFO L231 Difference]: Finished difference. Result has 32 places, 30 transitions, 74 flow [2024-10-31 22:03:22,944 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=62, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=74, PETRI_PLACES=32, PETRI_TRANSITIONS=30} [2024-10-31 22:03:22,949 INFO L277 CegarLoopForPetriNet]: 44 programPoint places, -12 predicate places. [2024-10-31 22:03:22,950 INFO L471 AbstractCegarLoop]: Abstraction has has 32 places, 30 transitions, 74 flow [2024-10-31 22:03:22,950 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:03:22,950 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:03:22,951 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:03:22,955 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8244a17e-8dc9-4927-a6c1-c1a5b10a6333/bin/uautomizer-verify-4GaUIPS5ZU/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-10-31 22:03:23,151 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8244a17e-8dc9-4927-a6c1-c1a5b10a6333/bin/uautomizer-verify-4GaUIPS5ZU/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-31 22:03:23,152 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-31 22:03:23,153 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:03:23,153 INFO L85 PathProgramCache]: Analyzing trace with hash 1069711224, now seen corresponding path program 1 times [2024-10-31 22:03:23,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-31 22:03:23,154 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1497081364] [2024-10-31 22:03:23,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:03:23,154 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-31 22:03:23,154 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8244a17e-8dc9-4927-a6c1-c1a5b10a6333/bin/uautomizer-verify-4GaUIPS5ZU/mathsat [2024-10-31 22:03:23,157 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8244a17e-8dc9-4927-a6c1-c1a5b10a6333/bin/uautomizer-verify-4GaUIPS5ZU/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-31 22:03:23,159 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8244a17e-8dc9-4927-a6c1-c1a5b10a6333/bin/uautomizer-verify-4GaUIPS5ZU/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-10-31 22:03:23,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:03:23,335 INFO L255 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-31 22:03:23,337 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:03:23,351 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:03:23,351 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-31 22:03:23,352 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-31 22:03:23,353 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1497081364] [2024-10-31 22:03:23,353 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1497081364] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:03:23,353 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:03:23,354 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:03:23,354 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [512305145] [2024-10-31 22:03:23,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:03:23,356 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:03:23,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-31 22:03:23,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:03:23,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:03:23,364 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 50 [2024-10-31 22:03:23,364 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 30 transitions, 74 flow. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:03:23,365 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:03:23,365 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 50 [2024-10-31 22:03:23,366 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:03:23,536 INFO L124 PetriNetUnfolderBase]: 35/127 cut-off events. [2024-10-31 22:03:23,536 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-10-31 22:03:23,537 INFO L83 FinitePrefix]: Finished finitePrefix Result has 237 conditions, 127 events. 35/127 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 476 event pairs, 12 based on Foata normal form. 0/112 useless extension candidates. Maximal degree in co-relation 202. Up to 56 conditions per place. [2024-10-31 22:03:23,538 INFO L140 encePairwiseOnDemand]: 45/50 looper letters, 26 selfloop transitions, 4 changer transitions 0/40 dead transitions. [2024-10-31 22:03:23,538 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 40 transitions, 157 flow [2024-10-31 22:03:23,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:03:23,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:03:23,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 82 transitions. [2024-10-31 22:03:23,544 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5466666666666666 [2024-10-31 22:03:23,545 INFO L175 Difference]: Start difference. First operand has 32 places, 30 transitions, 74 flow. Second operand 3 states and 82 transitions. [2024-10-31 22:03:23,545 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 40 transitions, 157 flow [2024-10-31 22:03:23,546 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 40 transitions, 143 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:03:23,550 INFO L231 Difference]: Finished difference. Result has 34 places, 33 transitions, 92 flow [2024-10-31 22:03:23,550 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=62, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=92, PETRI_PLACES=34, PETRI_TRANSITIONS=33} [2024-10-31 22:03:23,551 INFO L277 CegarLoopForPetriNet]: 44 programPoint places, -10 predicate places. [2024-10-31 22:03:23,552 INFO L471 AbstractCegarLoop]: Abstraction has has 34 places, 33 transitions, 92 flow [2024-10-31 22:03:23,553 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:03:23,553 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:03:23,554 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:03:23,562 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8244a17e-8dc9-4927-a6c1-c1a5b10a6333/bin/uautomizer-verify-4GaUIPS5ZU/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2024-10-31 22:03:23,755 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8244a17e-8dc9-4927-a6c1-c1a5b10a6333/bin/uautomizer-verify-4GaUIPS5ZU/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-31 22:03:23,755 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-31 22:03:23,756 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:03:23,756 INFO L85 PathProgramCache]: Analyzing trace with hash 1317269694, now seen corresponding path program 1 times [2024-10-31 22:03:23,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-31 22:03:23,757 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [771728062] [2024-10-31 22:03:23,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:03:23,758 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-31 22:03:23,758 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8244a17e-8dc9-4927-a6c1-c1a5b10a6333/bin/uautomizer-verify-4GaUIPS5ZU/mathsat [2024-10-31 22:03:23,761 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8244a17e-8dc9-4927-a6c1-c1a5b10a6333/bin/uautomizer-verify-4GaUIPS5ZU/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-31 22:03:23,762 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8244a17e-8dc9-4927-a6c1-c1a5b10a6333/bin/uautomizer-verify-4GaUIPS5ZU/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2024-10-31 22:03:23,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:03:23,901 INFO L255 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-31 22:03:23,901 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:03:23,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:03:23,937 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-31 22:03:23,938 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-31 22:03:23,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [771728062] [2024-10-31 22:03:23,939 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [771728062] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:03:23,939 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:03:23,939 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-31 22:03:23,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1142467815] [2024-10-31 22:03:23,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:03:23,940 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:03:23,940 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-31 22:03:23,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:03:23,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:03:23,947 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 50 [2024-10-31 22:03:23,947 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 33 transitions, 92 flow. Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:03:23,947 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:03:23,948 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 50 [2024-10-31 22:03:23,948 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:03:24,042 INFO L124 PetriNetUnfolderBase]: 27/107 cut-off events. [2024-10-31 22:03:24,044 INFO L125 PetriNetUnfolderBase]: For 17/19 co-relation queries the response was YES. [2024-10-31 22:03:24,045 INFO L83 FinitePrefix]: Finished finitePrefix Result has 223 conditions, 107 events. 27/107 cut-off events. For 17/19 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 377 event pairs, 18 based on Foata normal form. 10/104 useless extension candidates. Maximal degree in co-relation 46. Up to 62 conditions per place. [2024-10-31 22:03:24,045 INFO L140 encePairwiseOnDemand]: 47/50 looper letters, 19 selfloop transitions, 2 changer transitions 4/36 dead transitions. [2024-10-31 22:03:24,047 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 36 transitions, 146 flow [2024-10-31 22:03:24,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:03:24,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:03:24,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 77 transitions. [2024-10-31 22:03:24,049 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5133333333333333 [2024-10-31 22:03:24,052 INFO L175 Difference]: Start difference. First operand has 34 places, 33 transitions, 92 flow. Second operand 3 states and 77 transitions. [2024-10-31 22:03:24,052 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 36 transitions, 146 flow [2024-10-31 22:03:24,053 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 36 transitions, 138 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:03:24,054 INFO L231 Difference]: Finished difference. Result has 35 places, 29 transitions, 84 flow [2024-10-31 22:03:24,055 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=84, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=84, PETRI_PLACES=35, PETRI_TRANSITIONS=29} [2024-10-31 22:03:24,056 INFO L277 CegarLoopForPetriNet]: 44 programPoint places, -9 predicate places. [2024-10-31 22:03:24,057 INFO L471 AbstractCegarLoop]: Abstraction has has 35 places, 29 transitions, 84 flow [2024-10-31 22:03:24,057 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:03:24,058 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:03:24,058 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:03:24,062 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8244a17e-8dc9-4927-a6c1-c1a5b10a6333/bin/uautomizer-verify-4GaUIPS5ZU/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2024-10-31 22:03:24,262 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8244a17e-8dc9-4927-a6c1-c1a5b10a6333/bin/uautomizer-verify-4GaUIPS5ZU/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-31 22:03:24,262 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-31 22:03:24,263 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:03:24,264 INFO L85 PathProgramCache]: Analyzing trace with hash 240628214, now seen corresponding path program 1 times [2024-10-31 22:03:24,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-31 22:03:24,265 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1880289400] [2024-10-31 22:03:24,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:03:24,265 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-31 22:03:24,266 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8244a17e-8dc9-4927-a6c1-c1a5b10a6333/bin/uautomizer-verify-4GaUIPS5ZU/mathsat [2024-10-31 22:03:24,267 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8244a17e-8dc9-4927-a6c1-c1a5b10a6333/bin/uautomizer-verify-4GaUIPS5ZU/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-31 22:03:24,269 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8244a17e-8dc9-4927-a6c1-c1a5b10a6333/bin/uautomizer-verify-4GaUIPS5ZU/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2024-10-31 22:03:24,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:03:24,385 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:03:24,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:03:24,438 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2024-10-31 22:03:24,438 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-31 22:03:24,440 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (7 of 8 remaining) [2024-10-31 22:03:24,442 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (6 of 8 remaining) [2024-10-31 22:03:24,443 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (5 of 8 remaining) [2024-10-31 22:03:24,443 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK (4 of 8 remaining) [2024-10-31 22:03:24,443 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 8 remaining) [2024-10-31 22:03:24,444 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 8 remaining) [2024-10-31 22:03:24,444 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK (1 of 8 remaining) [2024-10-31 22:03:24,444 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 8 remaining) [2024-10-31 22:03:24,450 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8244a17e-8dc9-4927-a6c1-c1a5b10a6333/bin/uautomizer-verify-4GaUIPS5ZU/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2024-10-31 22:03:24,645 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8244a17e-8dc9-4927-a6c1-c1a5b10a6333/bin/uautomizer-verify-4GaUIPS5ZU/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-31 22:03:24,645 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-10-31 22:03:24,677 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-10-31 22:03:24,677 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-10-31 22:03:24,683 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.10 10:03:24 BasicIcfg [2024-10-31 22:03:24,683 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-31 22:03:24,684 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-31 22:03:24,684 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-31 22:03:24,685 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-31 22:03:24,685 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:03:22" (3/4) ... [2024-10-31 22:03:24,689 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-10-31 22:03:24,690 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-31 22:03:24,693 INFO L158 Benchmark]: Toolchain (without parser) took 5133.76ms. Allocated memory was 113.2MB in the beginning and 140.5MB in the end (delta: 27.3MB). Free memory was 86.3MB in the beginning and 69.6MB in the end (delta: 16.6MB). Peak memory consumption was 46.0MB. Max. memory is 16.1GB. [2024-10-31 22:03:24,695 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 75.5MB. Free memory is still 52.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-31 22:03:24,695 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1496.27ms. Allocated memory is still 113.2MB. Free memory was 86.0MB in the beginning and 76.3MB in the end (delta: 9.7MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2024-10-31 22:03:24,696 INFO L158 Benchmark]: Boogie Procedure Inliner took 96.21ms. Allocated memory is still 113.2MB. Free memory was 76.3MB in the beginning and 73.2MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-31 22:03:24,696 INFO L158 Benchmark]: Boogie Preprocessor took 104.67ms. Allocated memory is still 113.2MB. Free memory was 73.2MB in the beginning and 69.0MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-31 22:03:24,697 INFO L158 Benchmark]: RCFGBuilder took 970.76ms. Allocated memory is still 113.2MB. Free memory was 68.5MB in the beginning and 51.5MB in the end (delta: 17.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-10-31 22:03:24,697 INFO L158 Benchmark]: TraceAbstraction took 2452.47ms. Allocated memory was 113.2MB in the beginning and 140.5MB in the end (delta: 27.3MB). Free memory was 50.9MB in the beginning and 70.0MB in the end (delta: -19.1MB). Peak memory consumption was 8.2MB. Max. memory is 16.1GB. [2024-10-31 22:03:24,700 INFO L158 Benchmark]: Witness Printer took 5.67ms. Allocated memory is still 140.5MB. Free memory was 70.0MB in the beginning and 69.6MB in the end (delta: 341.7kB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-31 22:03:24,704 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 75.5MB. Free memory is still 52.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1496.27ms. Allocated memory is still 113.2MB. Free memory was 86.0MB in the beginning and 76.3MB in the end (delta: 9.7MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 96.21ms. Allocated memory is still 113.2MB. Free memory was 76.3MB in the beginning and 73.2MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 104.67ms. Allocated memory is still 113.2MB. Free memory was 73.2MB in the beginning and 69.0MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 970.76ms. Allocated memory is still 113.2MB. Free memory was 68.5MB in the beginning and 51.5MB in the end (delta: 17.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 2452.47ms. Allocated memory was 113.2MB in the beginning and 140.5MB in the end (delta: 27.3MB). Free memory was 50.9MB in the beginning and 70.0MB in the end (delta: -19.1MB). Peak memory consumption was 8.2MB. Max. memory is 16.1GB. * Witness Printer took 5.67ms. Allocated memory is still 140.5MB. Free memory was 70.0MB in the beginning and 69.6MB in the end (delta: 341.7kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 1693]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 1693. Possible FailurePath: [L1696] 0 pthread_t t1; [L1697] 0 pthread_mutex_t mutex; [L1697] 0 pthread_mutex_t mutex; [L1697] 0 pthread_mutex_t mutex; [L1697] 0 pthread_mutex_t mutex; [L1697] 0 pthread_mutex_t mutex; [L1697] 0 pthread_mutex_t mutex; [L1698] 0 int pdev; [L1734] CALL 0 module_init() [L1709] 0 pdev = 1 [L1710] CALL 0 ldv_assert(pdev==1) [L1695] COND FALSE 0 !(!expression) VAL [\old(expression)=1, expression=1, mutex={3:0}, pdev=1, t1=0] [L1710] RET 0 ldv_assert(pdev==1) [L1711] COND TRUE 0 __VERIFIER_nondet_int() [L1712] FCALL, FORK 0 pthread_create(&t1, ((void *)0), thread1, ((void *)0)) VAL [\old(arg)={0:0}, mutex={3:0}, pdev=1, t1=-1] [L1714] 0 pdev = 2 VAL [\old(arg)={0:0}, arg={0:0}, mutex={3:0}, pdev=2, t1=-1] [L1702] 1 pdev = 6 VAL [\old(arg)={0:0}, arg={0:0}, mutex={3:0}, pdev=6, t1=-1] [L1717] CALL 0 ldv_assert(pdev==2) [L1695] COND TRUE 0 !expression [L1695] CALL 0 reach_error() [L1693] COND FALSE 0 !(0) [L1693] 0 __assert_fail ("0", "race-1_2-join.c", 10, __extension__ __PRETTY_FUNCTION__) VAL [\old(arg)={0:0}, arg={0:0}, mutex={3:0}, pdev=6, t1=-1] - UnprovableResult [Line: 1693]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1693]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1733]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1693]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1712]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 51 locations, 8 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 2.3s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 30 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 20 mSDsluCounter, 6 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 113 IncrementalHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 6 mSDtfsCounter, 113 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 19 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=102occurred in iteration=0, InterpolantAutomatonStates: 9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 34 NumberOfCodeBlocks, 34 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 19 ConstructedInterpolants, 0 QuantifiedInterpolants, 41 SizeOfPredicates, 2 NumberOfNonLiveVariables, 114 ConjunctsInSsa, 10 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-10-31 22:03:24,734 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8244a17e-8dc9-4927-a6c1-c1a5b10a6333/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample