./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/pthread/stateful01-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02514a1f-f271-4929-bd27-4a31dc2d70e5/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02514a1f-f271-4929-bd27-4a31dc2d70e5/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02514a1f-f271-4929-bd27-4a31dc2d70e5/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02514a1f-f271-4929-bd27-4a31dc2d70e5/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread/stateful01-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02514a1f-f271-4929-bd27-4a31dc2d70e5/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02514a1f-f271-4929-bd27-4a31dc2d70e5/bin/uautomizer-verify-aQ6SnzHsRB --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 4f746010868b331b940ee2293ff3d78b9aa516b26fde95d84f76493b23741d03 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 03:55:30,594 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 03:55:30,711 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02514a1f-f271-4929-bd27-4a31dc2d70e5/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-28 03:55:30,720 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 03:55:30,724 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 03:55:30,771 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 03:55:30,772 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 03:55:30,772 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 03:55:30,773 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 03:55:30,773 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 03:55:30,774 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 03:55:30,774 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 03:55:30,774 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 03:55:30,775 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 03:55:30,777 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 03:55:30,777 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 03:55:30,777 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 03:55:30,777 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 03:55:30,777 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 03:55:30,778 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 03:55:30,778 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-28 03:55:30,778 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-28 03:55:30,778 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-28 03:55:30,778 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 03:55:30,778 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-28 03:55:30,778 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-28 03:55:30,779 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 03:55:30,779 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 03:55:30,779 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 03:55:30,779 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 03:55:30,780 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:55:30,780 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:55:30,780 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:55:30,780 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:55:30,781 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 03:55:30,781 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:55:30,781 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:55:30,781 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:55:30,782 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:55:30,782 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 03:55:30,782 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 03:55:30,782 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 03:55:30,782 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 03:55:30,782 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 03:55:30,783 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 03:55:30,783 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 03:55:30,783 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 03:55:30,783 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_02514a1f-f271-4929-bd27-4a31dc2d70e5/bin/uautomizer-verify-aQ6SnzHsRB 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 -> 4f746010868b331b940ee2293ff3d78b9aa516b26fde95d84f76493b23741d03 [2024-11-28 03:55:31,175 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 03:55:31,193 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 03:55:31,196 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 03:55:31,198 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 03:55:31,198 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 03:55:31,200 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02514a1f-f271-4929-bd27-4a31dc2d70e5/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/pthread/stateful01-1.i [2024-11-28 03:55:34,471 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02514a1f-f271-4929-bd27-4a31dc2d70e5/bin/uautomizer-verify-aQ6SnzHsRB/data/08c0da608/58dd631fe18c445a85b6a300ea8de671/FLAG2a0095b86 [2024-11-28 03:55:34,838 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 03:55:34,838 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02514a1f-f271-4929-bd27-4a31dc2d70e5/sv-benchmarks/c/pthread/stateful01-1.i [2024-11-28 03:55:34,868 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02514a1f-f271-4929-bd27-4a31dc2d70e5/bin/uautomizer-verify-aQ6SnzHsRB/data/08c0da608/58dd631fe18c445a85b6a300ea8de671/FLAG2a0095b86 [2024-11-28 03:55:35,049 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02514a1f-f271-4929-bd27-4a31dc2d70e5/bin/uautomizer-verify-aQ6SnzHsRB/data/08c0da608/58dd631fe18c445a85b6a300ea8de671 [2024-11-28 03:55:35,052 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 03:55:35,055 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 03:55:35,057 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 03:55:35,058 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 03:55:35,069 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 03:55:35,072 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:55:35" (1/1) ... [2024-11-28 03:55:35,073 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c05f285 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:55:35, skipping insertion in model container [2024-11-28 03:55:35,074 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:55:35" (1/1) ... [2024-11-28 03:55:35,136 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 03:55:35,622 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:55:35,644 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 03:55:35,701 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:55:35,747 INFO L204 MainTranslator]: Completed translation [2024-11-28 03:55:35,748 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:55:35 WrapperNode [2024-11-28 03:55:35,749 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 03:55:35,750 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 03:55:35,751 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 03:55:35,751 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 03:55:35,761 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:55:35" (1/1) ... [2024-11-28 03:55:35,784 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:55:35" (1/1) ... [2024-11-28 03:55:35,819 INFO L138 Inliner]: procedures = 168, calls = 29, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 52 [2024-11-28 03:55:35,820 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 03:55:35,820 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 03:55:35,820 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 03:55:35,821 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 03:55:35,837 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:55:35" (1/1) ... [2024-11-28 03:55:35,837 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:55:35" (1/1) ... [2024-11-28 03:55:35,841 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:55:35" (1/1) ... [2024-11-28 03:55:35,872 INFO L175 MemorySlicer]: Split 12 memory accesses to 3 slices as follows [2, 5, 5]. 42 percent of accesses are in the largest equivalence class. The 12 initializations are split as follows [2, 5, 5]. The 0 writes are split as follows [0, 0, 0]. [2024-11-28 03:55:35,872 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:55:35" (1/1) ... [2024-11-28 03:55:35,872 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:55:35" (1/1) ... [2024-11-28 03:55:35,883 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:55:35" (1/1) ... [2024-11-28 03:55:35,888 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:55:35" (1/1) ... [2024-11-28 03:55:35,890 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:55:35" (1/1) ... [2024-11-28 03:55:35,895 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:55:35" (1/1) ... [2024-11-28 03:55:35,896 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:55:35" (1/1) ... [2024-11-28 03:55:35,903 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 03:55:35,904 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 03:55:35,904 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 03:55:35,904 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 03:55:35,909 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:55:35" (1/1) ... [2024-11-28 03:55:35,920 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:55:35,937 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02514a1f-f271-4929-bd27-4a31dc2d70e5/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:55:35,961 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02514a1f-f271-4929-bd27-4a31dc2d70e5/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 03:55:35,970 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02514a1f-f271-4929-bd27-4a31dc2d70e5/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 03:55:36,005 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-28 03:55:36,005 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-28 03:55:36,005 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-28 03:55:36,006 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-28 03:55:36,006 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-28 03:55:36,006 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 03:55:36,006 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 03:55:36,007 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-28 03:55:36,007 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-28 03:55:36,007 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-28 03:55:36,007 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 03:55:36,007 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 03:55:36,009 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-28 03:55:36,210 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 03:55:36,212 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 03:55:36,546 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-28 03:55:36,547 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 03:55:36,844 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 03:55:36,844 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-28 03:55:36,845 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:55:36 BoogieIcfgContainer [2024-11-28 03:55:36,845 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 03:55:36,849 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 03:55:36,850 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 03:55:36,857 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 03:55:36,857 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:55:35" (1/3) ... [2024-11-28 03:55:36,859 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12c5c9f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:55:36, skipping insertion in model container [2024-11-28 03:55:36,859 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:55:35" (2/3) ... [2024-11-28 03:55:36,861 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12c5c9f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:55:36, skipping insertion in model container [2024-11-28 03:55:36,861 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:55:36" (3/3) ... [2024-11-28 03:55:36,863 INFO L128 eAbstractionObserver]: Analyzing ICFG stateful01-1.i [2024-11-28 03:55:36,884 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 03:55:36,886 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG stateful01-1.i that has 3 procedures, 36 locations, 1 initial locations, 0 loop locations, and 2 error locations. [2024-11-28 03:55:36,886 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-28 03:55:36,974 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-28 03:55:37,030 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 42 places, 37 transitions, 88 flow [2024-11-28 03:55:37,092 INFO L124 PetriNetUnfolderBase]: 2/35 cut-off events. [2024-11-28 03:55:37,099 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-28 03:55:37,104 INFO L83 FinitePrefix]: Finished finitePrefix Result has 44 conditions, 35 events. 2/35 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 37 event pairs, 0 based on Foata normal form. 0/31 useless extension candidates. Maximal degree in co-relation 21. Up to 2 conditions per place. [2024-11-28 03:55:37,104 INFO L82 GeneralOperation]: Start removeDead. Operand has 42 places, 37 transitions, 88 flow [2024-11-28 03:55:37,108 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 39 places, 34 transitions, 80 flow [2024-11-28 03:55:37,122 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 03:55:37,145 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;@31febd8d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 03:55:37,145 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-11-28 03:55:37,178 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-28 03:55:37,179 INFO L124 PetriNetUnfolderBase]: 2/32 cut-off events. [2024-11-28 03:55:37,179 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-28 03:55:37,179 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:55:37,181 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:55:37,183 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-28 03:55:37,190 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:55:37,191 INFO L85 PathProgramCache]: Analyzing trace with hash -852408417, now seen corresponding path program 1 times [2024-11-28 03:55:37,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:55:37,202 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [197522080] [2024-11-28 03:55:37,202 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:55:37,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:55:37,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:55:37,736 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:55:37,737 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:55:37,737 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [197522080] [2024-11-28 03:55:37,738 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [197522080] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:55:37,738 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:55:37,742 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-28 03:55:37,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [828438729] [2024-11-28 03:55:37,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:55:37,754 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:55:37,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:55:37,791 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:55:37,792 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:55:37,794 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 37 [2024-11-28 03:55:37,798 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 34 transitions, 80 flow. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:55:37,799 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:55:37,799 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 37 [2024-11-28 03:55:37,800 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:55:38,025 INFO L124 PetriNetUnfolderBase]: 182/360 cut-off events. [2024-11-28 03:55:38,026 INFO L125 PetriNetUnfolderBase]: For 19/19 co-relation queries the response was YES. [2024-11-28 03:55:38,030 INFO L83 FinitePrefix]: Finished finitePrefix Result has 728 conditions, 360 events. 182/360 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 1334 event pairs, 182 based on Foata normal form. 3/358 useless extension candidates. Maximal degree in co-relation 671. Up to 337 conditions per place. [2024-11-28 03:55:38,036 INFO L140 encePairwiseOnDemand]: 33/37 looper letters, 21 selfloop transitions, 1 changer transitions 2/30 dead transitions. [2024-11-28 03:55:38,038 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 30 transitions, 116 flow [2024-11-28 03:55:38,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:55:38,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:55:38,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 55 transitions. [2024-11-28 03:55:38,053 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4954954954954955 [2024-11-28 03:55:38,055 INFO L175 Difference]: Start difference. First operand has 39 places, 34 transitions, 80 flow. Second operand 3 states and 55 transitions. [2024-11-28 03:55:38,056 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 30 transitions, 116 flow [2024-11-28 03:55:38,061 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 30 transitions, 108 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-28 03:55:38,064 INFO L231 Difference]: Finished difference. Result has 35 places, 28 transitions, 62 flow [2024-11-28 03:55:38,067 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=37, PETRI_DIFFERENCE_MINUEND_FLOW=64, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=62, PETRI_PLACES=35, PETRI_TRANSITIONS=28} [2024-11-28 03:55:38,072 INFO L279 CegarLoopForPetriNet]: 39 programPoint places, -4 predicate places. [2024-11-28 03:55:38,072 INFO L471 AbstractCegarLoop]: Abstraction has has 35 places, 28 transitions, 62 flow [2024-11-28 03:55:38,072 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:55:38,072 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:55:38,073 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:55:38,073 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-28 03:55:38,074 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-28 03:55:38,075 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:55:38,075 INFO L85 PathProgramCache]: Analyzing trace with hash 1582024772, now seen corresponding path program 1 times [2024-11-28 03:55:38,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:55:38,075 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821811369] [2024-11-28 03:55:38,076 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:55:38,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:55:38,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:55:38,375 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:55:38,375 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:55:38,375 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1821811369] [2024-11-28 03:55:38,375 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1821811369] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:55:38,375 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:55:38,375 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:55:38,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [170713277] [2024-11-28 03:55:38,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:55:38,377 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:55:38,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:55:38,378 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:55:38,378 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:55:38,379 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 37 [2024-11-28 03:55:38,380 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 28 transitions, 62 flow. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:55:38,380 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:55:38,381 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 37 [2024-11-28 03:55:38,381 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:55:38,567 INFO L124 PetriNetUnfolderBase]: 102/235 cut-off events. [2024-11-28 03:55:38,571 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2024-11-28 03:55:38,572 INFO L83 FinitePrefix]: Finished finitePrefix Result has 473 conditions, 235 events. 102/235 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 807 event pairs, 42 based on Foata normal form. 32/259 useless extension candidates. Maximal degree in co-relation 467. Up to 136 conditions per place. [2024-11-28 03:55:38,574 INFO L140 encePairwiseOnDemand]: 29/37 looper letters, 20 selfloop transitions, 8 changer transitions 0/34 dead transitions. [2024-11-28 03:55:38,574 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 34 transitions, 132 flow [2024-11-28 03:55:38,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:55:38,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:55:38,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 65 transitions. [2024-11-28 03:55:38,576 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5855855855855856 [2024-11-28 03:55:38,576 INFO L175 Difference]: Start difference. First operand has 35 places, 28 transitions, 62 flow. Second operand 3 states and 65 transitions. [2024-11-28 03:55:38,576 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 34 transitions, 132 flow [2024-11-28 03:55:38,577 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 34 transitions, 131 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-28 03:55:38,578 INFO L231 Difference]: Finished difference. Result has 34 places, 28 transitions, 77 flow [2024-11-28 03:55:38,580 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=37, PETRI_DIFFERENCE_MINUEND_FLOW=61, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=77, PETRI_PLACES=34, PETRI_TRANSITIONS=28} [2024-11-28 03:55:38,581 INFO L279 CegarLoopForPetriNet]: 39 programPoint places, -5 predicate places. [2024-11-28 03:55:38,581 INFO L471 AbstractCegarLoop]: Abstraction has has 34 places, 28 transitions, 77 flow [2024-11-28 03:55:38,582 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:55:38,582 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:55:38,582 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:55:38,582 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 03:55:38,582 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-28 03:55:38,583 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:55:38,583 INFO L85 PathProgramCache]: Analyzing trace with hash 185942528, now seen corresponding path program 2 times [2024-11-28 03:55:38,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:55:38,584 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1574028263] [2024-11-28 03:55:38,585 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 03:55:38,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:55:38,676 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-28 03:55:38,676 INFO L230 tOrderPrioritization]: Conjunction of SSA is sat [2024-11-28 03:55:38,676 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 03:55:38,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:55:38,751 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-28 03:55:38,752 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-28 03:55:38,753 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (3 of 4 remaining) [2024-11-28 03:55:38,757 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (2 of 4 remaining) [2024-11-28 03:55:38,757 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2024-11-28 03:55:38,757 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2024-11-28 03:55:38,758 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 03:55:38,758 INFO L422 BasicCegarLoop]: Path program histogram: [2, 1] [2024-11-28 03:55:38,836 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-28 03:55:38,837 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-28 03:55:38,844 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 03:55:38 BasicIcfg [2024-11-28 03:55:38,844 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-28 03:55:38,845 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-28 03:55:38,845 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-28 03:55:38,845 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-28 03:55:38,846 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:55:36" (3/4) ... [2024-11-28 03:55:38,849 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-28 03:55:38,850 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-28 03:55:38,851 INFO L158 Benchmark]: Toolchain (without parser) took 3796.42ms. Allocated memory is still 142.6MB. Free memory was 116.2MB in the beginning and 46.8MB in the end (delta: 69.4MB). Peak memory consumption was 73.8MB. Max. memory is 16.1GB. [2024-11-28 03:55:38,851 INFO L158 Benchmark]: CDTParser took 3.04ms. Allocated memory is still 117.4MB. Free memory is still 72.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 03:55:38,852 INFO L158 Benchmark]: CACSL2BoogieTranslator took 692.08ms. Allocated memory is still 142.6MB. Free memory was 116.0MB in the beginning and 96.0MB in the end (delta: 20.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-28 03:55:38,852 INFO L158 Benchmark]: Boogie Procedure Inliner took 69.31ms. Allocated memory is still 142.6MB. Free memory was 96.0MB in the beginning and 94.3MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 03:55:38,853 INFO L158 Benchmark]: Boogie Preprocessor took 82.83ms. Allocated memory is still 142.6MB. Free memory was 94.3MB in the beginning and 92.7MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 03:55:38,853 INFO L158 Benchmark]: RCFGBuilder took 941.12ms. Allocated memory is still 142.6MB. Free memory was 92.7MB in the beginning and 66.7MB in the end (delta: 26.0MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-28 03:55:38,854 INFO L158 Benchmark]: TraceAbstraction took 1994.93ms. Allocated memory is still 142.6MB. Free memory was 66.2MB in the beginning and 46.8MB in the end (delta: 19.4MB). Peak memory consumption was 23.5MB. Max. memory is 16.1GB. [2024-11-28 03:55:38,854 INFO L158 Benchmark]: Witness Printer took 5.23ms. Allocated memory is still 142.6MB. Free memory was 46.8MB in the beginning and 46.8MB in the end (delta: 27.1kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 03:55:38,856 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 3.04ms. Allocated memory is still 117.4MB. Free memory is still 72.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 692.08ms. Allocated memory is still 142.6MB. Free memory was 116.0MB in the beginning and 96.0MB in the end (delta: 20.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 69.31ms. Allocated memory is still 142.6MB. Free memory was 96.0MB in the beginning and 94.3MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 82.83ms. Allocated memory is still 142.6MB. Free memory was 94.3MB in the beginning and 92.7MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 941.12ms. Allocated memory is still 142.6MB. Free memory was 92.7MB in the beginning and 66.7MB in the end (delta: 26.0MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 1994.93ms. Allocated memory is still 142.6MB. Free memory was 66.2MB in the beginning and 46.8MB in the end (delta: 19.4MB). Peak memory consumption was 23.5MB. Max. memory is 16.1GB. * Witness Printer took 5.23ms. Allocated memory is still 142.6MB. Free memory was 46.8MB in the beginning and 46.8MB in the end (delta: 27.1kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 20]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 20. Possible FailurePath: [L692] 0 pthread_mutex_t ma, mb; [L692] 0 pthread_mutex_t ma, mb; [L692] 0 pthread_mutex_t ma, mb; [L692] 0 pthread_mutex_t ma, mb; [L692] 0 pthread_mutex_t ma, mb; [L692] 0 pthread_mutex_t ma, mb; [L692] 0 pthread_mutex_t ma, mb; [L692] 0 pthread_mutex_t ma, mb; [L692] 0 pthread_mutex_t ma, mb; [L692] 0 pthread_mutex_t ma, mb; [L692] 0 pthread_mutex_t ma, mb; [L692] 0 pthread_mutex_t ma, mb; [L693] 0 int data1, data2; [L716] 0 pthread_t t1, t2; [L719] 0 data1 = 10 [L720] 0 data2 = 10 [L721] FCALL, FORK 0 pthread_create(&t1, 0, thread1, 0) VAL [\old(arg)={0:0}, data1=10, data2=10, ma={3:0}, mb={4:0}, t1=-2] [L697] 1 data1++ VAL [\old(arg)={0:0}, arg={0:0}, data1=11, data2=10, ma={3:0}, mb={4:0}] [L700] 1 data2++ VAL [\old(arg)={0:0}, arg={0:0}, data1=11, data2=11, ma={3:0}, mb={4:0}] [L722] FCALL, FORK 0 pthread_create(&t2, 0, thread2, 0) VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, data1=11, data2=11, ma={3:0}, mb={4:0}, t1=-2, t2=-1] [L707] 2 data1+=5 VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, data1=16, data2=11, ma={3:0}, mb={4:0}] [L710] 2 data2-=6 VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, data1=16, data2=5, ma={3:0}, mb={4:0}] [L702] 1 return 0; [L712] 2 return 0; [L723] FCALL, JOIN 1 pthread_join(t1, 0) VAL [\old(arg)={0:0}, \old(arg)={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, data1=16, data2=5, ma={3:0}, mb={4:0}, t1=-2, t2=-1] [L724] FCALL, JOIN 2 pthread_join(t2, 0) VAL [\old(arg)={0:0}, \old(arg)={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, data1=16, data2=5, ma={3:0}, mb={4:0}, t1=-2, t2=-1] [L725] COND TRUE 0 data1==16 && data2==5 [L727] CALL 0 reach_error() [L20] COND FALSE 0 !(0) VAL [\old(arg)={0:0}, \old(arg)={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, data1=16, data2=5, ma={3:0}, mb={4:0}] [L20] 0 __assert_fail ("0", "stateful01-1.c", 3, __extension__ __PRETTY_FUNCTION__) VAL [\old(arg)={0:0}, \old(arg)={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, data1=16, data2=5, ma={3:0}, mb={4:0}] - UnprovableResult [Line: 714]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 722]: 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. - UnprovableResult [Line: 721]: 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 5 procedures, 58 locations, 4 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: 1.7s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 9 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 9 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 64 IncrementalHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 0 mSDtfsCounter, 64 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=80occurred in iteration=0, InterpolantAutomatonStates: 6, 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, 0.2s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 84 NumberOfCodeBlocks, 84 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 54 ConstructedInterpolants, 0 QuantifiedInterpolants, 132 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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, ConComCheckerStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-28 03:55:38,880 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02514a1f-f271-4929-bd27-4a31dc2d70e5/bin/uautomizer-verify-aQ6SnzHsRB/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/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02514a1f-f271-4929-bd27-4a31dc2d70e5/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02514a1f-f271-4929-bd27-4a31dc2d70e5/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02514a1f-f271-4929-bd27-4a31dc2d70e5/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02514a1f-f271-4929-bd27-4a31dc2d70e5/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread/stateful01-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02514a1f-f271-4929-bd27-4a31dc2d70e5/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02514a1f-f271-4929-bd27-4a31dc2d70e5/bin/uautomizer-verify-aQ6SnzHsRB --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 4f746010868b331b940ee2293ff3d78b9aa516b26fde95d84f76493b23741d03 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 03:55:42,219 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 03:55:42,381 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02514a1f-f271-4929-bd27-4a31dc2d70e5/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2024-11-28 03:55:42,395 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 03:55:42,399 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 03:55:42,443 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 03:55:42,445 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 03:55:42,445 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 03:55:42,446 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 03:55:42,446 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 03:55:42,447 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 03:55:42,448 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 03:55:42,448 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 03:55:42,448 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 03:55:42,449 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 03:55:42,449 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 03:55:42,449 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 03:55:42,449 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 03:55:42,450 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 03:55:42,450 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 03:55:42,451 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-28 03:55:42,451 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-28 03:55:42,451 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-28 03:55:42,451 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 03:55:42,451 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-28 03:55:42,451 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-28 03:55:42,451 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-28 03:55:42,452 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-28 03:55:42,452 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 03:55:42,452 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 03:55:42,452 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 03:55:42,452 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 03:55:42,452 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:55:42,452 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:55:42,453 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:55:42,453 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:55:42,453 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 03:55:42,453 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:55:42,454 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:55:42,454 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:55:42,454 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:55:42,455 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 03:55:42,455 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 03:55:42,455 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-28 03:55:42,455 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-28 03:55:42,456 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 03:55:42,456 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 03:55:42,456 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 03:55:42,456 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 03:55:42,456 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_02514a1f-f271-4929-bd27-4a31dc2d70e5/bin/uautomizer-verify-aQ6SnzHsRB 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 -> 4f746010868b331b940ee2293ff3d78b9aa516b26fde95d84f76493b23741d03 [2024-11-28 03:55:42,845 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 03:55:42,855 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 03:55:42,858 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 03:55:42,860 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 03:55:42,860 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 03:55:42,862 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02514a1f-f271-4929-bd27-4a31dc2d70e5/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/pthread/stateful01-1.i [2024-11-28 03:55:45,968 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02514a1f-f271-4929-bd27-4a31dc2d70e5/bin/uautomizer-verify-aQ6SnzHsRB/data/3142e102f/1dde698cfa9b4595aaec31caef2343d5/FLAGcbd0bb6b3 [2024-11-28 03:55:46,327 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 03:55:46,328 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02514a1f-f271-4929-bd27-4a31dc2d70e5/sv-benchmarks/c/pthread/stateful01-1.i [2024-11-28 03:55:46,352 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02514a1f-f271-4929-bd27-4a31dc2d70e5/bin/uautomizer-verify-aQ6SnzHsRB/data/3142e102f/1dde698cfa9b4595aaec31caef2343d5/FLAGcbd0bb6b3 [2024-11-28 03:55:46,550 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02514a1f-f271-4929-bd27-4a31dc2d70e5/bin/uautomizer-verify-aQ6SnzHsRB/data/3142e102f/1dde698cfa9b4595aaec31caef2343d5 [2024-11-28 03:55:46,554 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 03:55:46,557 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 03:55:46,559 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 03:55:46,559 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 03:55:46,564 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 03:55:46,565 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:55:46" (1/1) ... [2024-11-28 03:55:46,568 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2aef8af2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:55:46, skipping insertion in model container [2024-11-28 03:55:46,568 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:55:46" (1/1) ... [2024-11-28 03:55:46,616 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 03:55:47,046 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:55:47,067 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 03:55:47,138 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:55:47,197 INFO L204 MainTranslator]: Completed translation [2024-11-28 03:55:47,198 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:55:47 WrapperNode [2024-11-28 03:55:47,199 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 03:55:47,200 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 03:55:47,200 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 03:55:47,200 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 03:55:47,210 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:55:47" (1/1) ... [2024-11-28 03:55:47,230 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:55:47" (1/1) ... [2024-11-28 03:55:47,259 INFO L138 Inliner]: procedures = 172, calls = 29, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 53 [2024-11-28 03:55:47,260 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 03:55:47,261 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 03:55:47,261 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 03:55:47,262 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 03:55:47,271 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:55:47" (1/1) ... [2024-11-28 03:55:47,272 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:55:47" (1/1) ... [2024-11-28 03:55:47,278 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:55:47" (1/1) ... [2024-11-28 03:55:47,302 INFO L175 MemorySlicer]: Split 12 memory accesses to 3 slices as follows [2, 5, 5]. 42 percent of accesses are in the largest equivalence class. The 12 initializations are split as follows [2, 5, 5]. The 0 writes are split as follows [0, 0, 0]. [2024-11-28 03:55:47,303 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:55:47" (1/1) ... [2024-11-28 03:55:47,303 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:55:47" (1/1) ... [2024-11-28 03:55:47,317 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:55:47" (1/1) ... [2024-11-28 03:55:47,318 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:55:47" (1/1) ... [2024-11-28 03:55:47,323 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:55:47" (1/1) ... [2024-11-28 03:55:47,325 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:55:47" (1/1) ... [2024-11-28 03:55:47,326 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:55:47" (1/1) ... [2024-11-28 03:55:47,330 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 03:55:47,334 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 03:55:47,334 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 03:55:47,335 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 03:55:47,336 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:55:47" (1/1) ... [2024-11-28 03:55:47,344 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:55:47,360 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02514a1f-f271-4929-bd27-4a31dc2d70e5/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:55:47,376 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02514a1f-f271-4929-bd27-4a31dc2d70e5/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 03:55:47,380 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02514a1f-f271-4929-bd27-4a31dc2d70e5/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 03:55:47,410 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-28 03:55:47,411 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-28 03:55:47,411 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-28 03:55:47,411 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-28 03:55:47,411 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-28 03:55:47,411 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 03:55:47,411 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-28 03:55:47,411 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-28 03:55:47,412 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-11-28 03:55:47,412 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#0 [2024-11-28 03:55:47,412 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#1 [2024-11-28 03:55:47,412 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#2 [2024-11-28 03:55:47,412 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-28 03:55:47,412 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 03:55:47,412 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 03:55:47,414 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-28 03:55:47,619 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 03:55:47,621 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 03:55:47,895 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-28 03:55:47,895 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 03:55:48,143 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 03:55:48,146 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-28 03:55:48,146 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:55:48 BoogieIcfgContainer [2024-11-28 03:55:48,146 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 03:55:48,149 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 03:55:48,149 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 03:55:48,155 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 03:55:48,155 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:55:46" (1/3) ... [2024-11-28 03:55:48,156 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51ab4ce7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:55:48, skipping insertion in model container [2024-11-28 03:55:48,156 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:55:47" (2/3) ... [2024-11-28 03:55:48,157 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51ab4ce7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:55:48, skipping insertion in model container [2024-11-28 03:55:48,158 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:55:48" (3/3) ... [2024-11-28 03:55:48,159 INFO L128 eAbstractionObserver]: Analyzing ICFG stateful01-1.i [2024-11-28 03:55:48,177 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 03:55:48,178 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG stateful01-1.i that has 3 procedures, 36 locations, 1 initial locations, 0 loop locations, and 2 error locations. [2024-11-28 03:55:48,179 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-28 03:55:48,251 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-28 03:55:48,296 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 42 places, 37 transitions, 88 flow [2024-11-28 03:55:48,353 INFO L124 PetriNetUnfolderBase]: 2/35 cut-off events. [2024-11-28 03:55:48,357 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-28 03:55:48,361 INFO L83 FinitePrefix]: Finished finitePrefix Result has 44 conditions, 35 events. 2/35 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 37 event pairs, 0 based on Foata normal form. 0/31 useless extension candidates. Maximal degree in co-relation 21. Up to 2 conditions per place. [2024-11-28 03:55:48,361 INFO L82 GeneralOperation]: Start removeDead. Operand has 42 places, 37 transitions, 88 flow [2024-11-28 03:55:48,365 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 39 places, 34 transitions, 80 flow [2024-11-28 03:55:48,381 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 03:55:48,396 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;@9f28950, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 03:55:48,397 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-11-28 03:55:48,424 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-28 03:55:48,424 INFO L124 PetriNetUnfolderBase]: 2/32 cut-off events. [2024-11-28 03:55:48,424 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-28 03:55:48,425 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:55:48,426 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:55:48,427 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-28 03:55:48,434 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:55:48,435 INFO L85 PathProgramCache]: Analyzing trace with hash 339122975, now seen corresponding path program 1 times [2024-11-28 03:55:48,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:55:48,451 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [28094606] [2024-11-28 03:55:48,451 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:55:48,452 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:55:48,452 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02514a1f-f271-4929-bd27-4a31dc2d70e5/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:55:48,454 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02514a1f-f271-4929-bd27-4a31dc2d70e5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:55:48,456 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02514a1f-f271-4929-bd27-4a31dc2d70e5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 03:55:48,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:55:48,614 INFO L256 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-28 03:55:48,620 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:55:48,761 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:55:48,762 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:55:48,763 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:55:48,764 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [28094606] [2024-11-28 03:55:48,766 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [28094606] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:55:48,766 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:55:48,766 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-28 03:55:48,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1328171482] [2024-11-28 03:55:48,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:55:48,777 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:55:48,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:55:48,817 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:55:48,819 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:55:48,822 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 37 [2024-11-28 03:55:48,826 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 34 transitions, 80 flow. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:55:48,828 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:55:48,828 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 37 [2024-11-28 03:55:48,829 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:55:49,030 INFO L124 PetriNetUnfolderBase]: 182/360 cut-off events. [2024-11-28 03:55:49,030 INFO L125 PetriNetUnfolderBase]: For 19/19 co-relation queries the response was YES. [2024-11-28 03:55:49,032 INFO L83 FinitePrefix]: Finished finitePrefix Result has 728 conditions, 360 events. 182/360 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 1334 event pairs, 182 based on Foata normal form. 3/358 useless extension candidates. Maximal degree in co-relation 671. Up to 337 conditions per place. [2024-11-28 03:55:49,036 INFO L140 encePairwiseOnDemand]: 33/37 looper letters, 21 selfloop transitions, 1 changer transitions 2/30 dead transitions. [2024-11-28 03:55:49,037 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 30 transitions, 116 flow [2024-11-28 03:55:49,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:55:49,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:55:49,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 55 transitions. [2024-11-28 03:55:49,050 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4954954954954955 [2024-11-28 03:55:49,052 INFO L175 Difference]: Start difference. First operand has 39 places, 34 transitions, 80 flow. Second operand 3 states and 55 transitions. [2024-11-28 03:55:49,054 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 30 transitions, 116 flow [2024-11-28 03:55:49,058 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 30 transitions, 108 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-28 03:55:49,061 INFO L231 Difference]: Finished difference. Result has 35 places, 28 transitions, 62 flow [2024-11-28 03:55:49,064 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=37, PETRI_DIFFERENCE_MINUEND_FLOW=64, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=62, PETRI_PLACES=35, PETRI_TRANSITIONS=28} [2024-11-28 03:55:49,068 INFO L279 CegarLoopForPetriNet]: 39 programPoint places, -4 predicate places. [2024-11-28 03:55:49,068 INFO L471 AbstractCegarLoop]: Abstraction has has 35 places, 28 transitions, 62 flow [2024-11-28 03:55:49,068 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:55:49,068 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:55:49,069 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:55:49,080 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02514a1f-f271-4929-bd27-4a31dc2d70e5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-28 03:55:49,273 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02514a1f-f271-4929-bd27-4a31dc2d70e5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:55:49,273 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-28 03:55:49,274 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:55:49,274 INFO L85 PathProgramCache]: Analyzing trace with hash -1521411132, now seen corresponding path program 1 times [2024-11-28 03:55:49,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:55:49,274 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1205488540] [2024-11-28 03:55:49,274 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:55:49,274 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:55:49,275 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02514a1f-f271-4929-bd27-4a31dc2d70e5/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:55:49,278 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02514a1f-f271-4929-bd27-4a31dc2d70e5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:55:49,279 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02514a1f-f271-4929-bd27-4a31dc2d70e5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 03:55:49,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:55:49,388 INFO L256 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 03:55:49,390 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:55:49,436 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 9 [2024-11-28 03:55:49,472 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:55:49,472 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:55:49,472 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:55:49,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1205488540] [2024-11-28 03:55:49,472 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1205488540] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:55:49,472 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:55:49,472 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:55:49,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1614265909] [2024-11-28 03:55:49,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:55:49,474 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:55:49,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:55:49,475 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:55:49,476 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:55:49,476 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 37 [2024-11-28 03:55:49,477 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 28 transitions, 62 flow. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:55:49,477 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:55:49,477 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 37 [2024-11-28 03:55:49,477 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:55:49,690 INFO L124 PetriNetUnfolderBase]: 102/235 cut-off events. [2024-11-28 03:55:49,691 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2024-11-28 03:55:49,694 INFO L83 FinitePrefix]: Finished finitePrefix Result has 473 conditions, 235 events. 102/235 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 807 event pairs, 42 based on Foata normal form. 32/259 useless extension candidates. Maximal degree in co-relation 467. Up to 136 conditions per place. [2024-11-28 03:55:49,697 INFO L140 encePairwiseOnDemand]: 29/37 looper letters, 20 selfloop transitions, 8 changer transitions 0/34 dead transitions. [2024-11-28 03:55:49,697 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 34 transitions, 132 flow [2024-11-28 03:55:49,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:55:49,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:55:49,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 65 transitions. [2024-11-28 03:55:49,701 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5855855855855856 [2024-11-28 03:55:49,702 INFO L175 Difference]: Start difference. First operand has 35 places, 28 transitions, 62 flow. Second operand 3 states and 65 transitions. [2024-11-28 03:55:49,702 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 34 transitions, 132 flow [2024-11-28 03:55:49,702 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 34 transitions, 131 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-28 03:55:49,703 INFO L231 Difference]: Finished difference. Result has 34 places, 28 transitions, 77 flow [2024-11-28 03:55:49,705 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=37, PETRI_DIFFERENCE_MINUEND_FLOW=61, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=77, PETRI_PLACES=34, PETRI_TRANSITIONS=28} [2024-11-28 03:55:49,706 INFO L279 CegarLoopForPetriNet]: 39 programPoint places, -5 predicate places. [2024-11-28 03:55:49,706 INFO L471 AbstractCegarLoop]: Abstraction has has 34 places, 28 transitions, 77 flow [2024-11-28 03:55:49,707 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:55:49,707 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:55:49,707 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:55:49,719 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02514a1f-f271-4929-bd27-4a31dc2d70e5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-28 03:55:49,911 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02514a1f-f271-4929-bd27-4a31dc2d70e5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:55:49,912 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-28 03:55:49,912 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:55:49,913 INFO L85 PathProgramCache]: Analyzing trace with hash 1377473920, now seen corresponding path program 2 times [2024-11-28 03:55:49,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:55:49,913 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [327351156] [2024-11-28 03:55:49,914 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 03:55:49,914 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:55:49,914 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02514a1f-f271-4929-bd27-4a31dc2d70e5/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:55:49,917 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02514a1f-f271-4929-bd27-4a31dc2d70e5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:55:49,919 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02514a1f-f271-4929-bd27-4a31dc2d70e5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-28 03:55:50,053 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-28 03:55:50,054 INFO L230 tOrderPrioritization]: Conjunction of SSA is sat [2024-11-28 03:55:50,054 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 03:55:50,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:55:50,141 INFO L130 FreeRefinementEngine]: Strategy FOX found a feasible trace [2024-11-28 03:55:50,144 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-28 03:55:50,145 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (3 of 4 remaining) [2024-11-28 03:55:50,147 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (2 of 4 remaining) [2024-11-28 03:55:50,148 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2024-11-28 03:55:50,148 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2024-11-28 03:55:50,160 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02514a1f-f271-4929-bd27-4a31dc2d70e5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-28 03:55:50,349 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02514a1f-f271-4929-bd27-4a31dc2d70e5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:55:50,349 INFO L422 BasicCegarLoop]: Path program histogram: [2, 1] [2024-11-28 03:55:50,386 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-28 03:55:50,387 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-28 03:55:50,396 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 03:55:50 BasicIcfg [2024-11-28 03:55:50,396 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-28 03:55:50,396 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-28 03:55:50,396 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-28 03:55:50,397 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-28 03:55:50,397 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:55:48" (3/4) ... [2024-11-28 03:55:50,399 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-28 03:55:50,400 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-28 03:55:50,401 INFO L158 Benchmark]: Toolchain (without parser) took 3844.93ms. Allocated memory was 83.9MB in the beginning and 125.8MB in the end (delta: 41.9MB). Free memory was 57.6MB in the beginning and 79.1MB in the end (delta: -21.6MB). Peak memory consumption was 23.8MB. Max. memory is 16.1GB. [2024-11-28 03:55:50,402 INFO L158 Benchmark]: CDTParser took 0.48ms. Allocated memory is still 83.9MB. Free memory is still 62.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 03:55:50,402 INFO L158 Benchmark]: CACSL2BoogieTranslator took 640.40ms. Allocated memory is still 83.9MB. Free memory was 57.4MB in the beginning and 36.5MB in the end (delta: 20.9MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-28 03:55:50,403 INFO L158 Benchmark]: Boogie Procedure Inliner took 60.37ms. Allocated memory is still 83.9MB. Free memory was 36.5MB in the beginning and 34.8MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 03:55:50,403 INFO L158 Benchmark]: Boogie Preprocessor took 73.03ms. Allocated memory is still 83.9MB. Free memory was 34.8MB in the beginning and 32.9MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 03:55:50,403 INFO L158 Benchmark]: RCFGBuilder took 811.81ms. Allocated memory was 83.9MB in the beginning and 125.8MB in the end (delta: 41.9MB). Free memory was 32.9MB in the beginning and 96.0MB in the end (delta: -63.1MB). Peak memory consumption was 14.5MB. Max. memory is 16.1GB. [2024-11-28 03:55:50,404 INFO L158 Benchmark]: TraceAbstraction took 2246.63ms. Allocated memory is still 125.8MB. Free memory was 95.5MB in the beginning and 79.2MB in the end (delta: 16.4MB). Peak memory consumption was 19.5MB. Max. memory is 16.1GB. [2024-11-28 03:55:50,404 INFO L158 Benchmark]: Witness Printer took 4.25ms. Allocated memory is still 125.8MB. Free memory was 79.2MB in the beginning and 79.1MB in the end (delta: 15.7kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 03:55:50,407 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.48ms. Allocated memory is still 83.9MB. Free memory is still 62.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 640.40ms. Allocated memory is still 83.9MB. Free memory was 57.4MB in the beginning and 36.5MB in the end (delta: 20.9MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 60.37ms. Allocated memory is still 83.9MB. Free memory was 36.5MB in the beginning and 34.8MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 73.03ms. Allocated memory is still 83.9MB. Free memory was 34.8MB in the beginning and 32.9MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 811.81ms. Allocated memory was 83.9MB in the beginning and 125.8MB in the end (delta: 41.9MB). Free memory was 32.9MB in the beginning and 96.0MB in the end (delta: -63.1MB). Peak memory consumption was 14.5MB. Max. memory is 16.1GB. * TraceAbstraction took 2246.63ms. Allocated memory is still 125.8MB. Free memory was 95.5MB in the beginning and 79.2MB in the end (delta: 16.4MB). Peak memory consumption was 19.5MB. Max. memory is 16.1GB. * Witness Printer took 4.25ms. Allocated memory is still 125.8MB. Free memory was 79.2MB in the beginning and 79.1MB in the end (delta: 15.7kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 20]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 20. Possible FailurePath: [L692] 0 pthread_mutex_t ma, mb; [L692] 0 pthread_mutex_t ma, mb; [L692] 0 pthread_mutex_t ma, mb; [L692] 0 pthread_mutex_t ma, mb; [L692] 0 pthread_mutex_t ma, mb; [L692] 0 pthread_mutex_t ma, mb; [L692] 0 pthread_mutex_t ma, mb; [L692] 0 pthread_mutex_t ma, mb; [L692] 0 pthread_mutex_t ma, mb; [L692] 0 pthread_mutex_t ma, mb; [L692] 0 pthread_mutex_t ma, mb; [L692] 0 pthread_mutex_t ma, mb; [L693] 0 int data1, data2; [L716] 0 pthread_t t1, t2; [L719] 0 data1 = 10 [L720] 0 data2 = 10 [L721] FCALL, FORK 0 pthread_create(&t1, 0, thread1, 0) VAL [\old(arg)={0:0}, data1=10, data2=10, ma={3:0}, mb={4:0}, t1=-1] [L697] 1 data1++ VAL [\old(arg)={0:0}, arg={0:0}, data1=11, data2=10, ma={3:0}, mb={4:0}] [L700] 1 data2++ VAL [\old(arg)={0:0}, arg={0:0}, data1=11, data2=11, ma={3:0}, mb={4:0}] [L722] FCALL, FORK 0 pthread_create(&t2, 0, thread2, 0) VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, data1=11, data2=11, ma={3:0}, mb={4:0}, t1=-1, t2=0] [L707] 2 data1+=5 VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, data1=16, data2=11, ma={3:0}, mb={4:0}] [L710] 2 data2-=6 VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, data1=16, data2=5, ma={3:0}, mb={4:0}] [L702] 1 return 0; [L712] 2 return 0; [L723] FCALL, JOIN 1 pthread_join(t1, 0) VAL [\old(arg)={0:0}, \old(arg)={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, data1=16, data2=5, ma={3:0}, mb={4:0}, t1=-1, t2=0] [L724] FCALL, JOIN 2 pthread_join(t2, 0) VAL [\old(arg)={0:0}, \old(arg)={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, data1=16, data2=5, ma={3:0}, mb={4:0}, t1=-1, t2=0] [L725] COND TRUE 0 data1==16 && data2==5 [L727] CALL 0 reach_error() [L20] COND FALSE 0 !(0) VAL [\old(arg)={0:0}, \old(arg)={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, data1=16, data2=5, ma={3:0}, mb={4:0}] [L20] 0 __assert_fail ("0", "stateful01-1.c", 3, __extension__ __PRETTY_FUNCTION__) VAL [\old(arg)={0:0}, \old(arg)={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, data1=16, data2=5, ma={3:0}, mb={4:0}] - UnprovableResult [Line: 714]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 722]: 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. - UnprovableResult [Line: 721]: 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 5 procedures, 58 locations, 4 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: 2.1s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 9 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 9 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 64 IncrementalHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 0 mSDtfsCounter, 64 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 54 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=80occurred in iteration=0, InterpolantAutomatonStates: 6, 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, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 84 NumberOfCodeBlocks, 84 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 54 ConstructedInterpolants, 0 QuantifiedInterpolants, 140 SizeOfPredicates, 0 NumberOfNonLiveVariables, 223 ConjunctsInSsa, 5 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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, ConComCheckerStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-28 03:55:50,427 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02514a1f-f271-4929-bd27-4a31dc2d70e5/bin/uautomizer-verify-aQ6SnzHsRB/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