./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/pthread-ext/37_stack_lock_p0_vs_concur.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_72d9ad96-ea86-4aaa-9f76-504bbfac4b32/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72d9ad96-ea86-4aaa-9f76-504bbfac4b32/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72d9ad96-ea86-4aaa-9f76-504bbfac4b32/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72d9ad96-ea86-4aaa-9f76-504bbfac4b32/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-ext/37_stack_lock_p0_vs_concur.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72d9ad96-ea86-4aaa-9f76-504bbfac4b32/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72d9ad96-ea86-4aaa-9f76-504bbfac4b32/bin/uautomizer-verify-84ZbGMXZE1 --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 82435f17481c054c9c5a8a1deca188b6bf36f1a34e751392b5a27cd7180adc30 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 07:45:38,024 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 07:45:38,077 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72d9ad96-ea86-4aaa-9f76-504bbfac4b32/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-12-02 07:45:38,081 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 07:45:38,082 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 07:45:38,101 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 07:45:38,101 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 07:45:38,101 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 07:45:38,102 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 07:45:38,102 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 07:45:38,102 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 07:45:38,102 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 07:45:38,102 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 07:45:38,102 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 07:45:38,103 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 07:45:38,103 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 07:45:38,103 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 07:45:38,103 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 07:45:38,103 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 07:45:38,103 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 07:45:38,103 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-12-02 07:45:38,103 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-12-02 07:45:38,103 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-12-02 07:45:38,104 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 07:45:38,104 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-12-02 07:45:38,104 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-02 07:45:38,104 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 07:45:38,104 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 07:45:38,104 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 07:45:38,104 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 07:45:38,104 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 07:45:38,104 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 07:45:38,104 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 07:45:38,105 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 07:45:38,105 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 07:45:38,105 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 07:45:38,105 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 07:45:38,105 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 07:45:38,105 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 07:45:38,105 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 07:45:38,105 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 07:45:38,105 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 07:45:38,106 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 07:45:38,106 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 07:45:38,106 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 07:45:38,106 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 07:45:38,106 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 07:45:38,106 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_72d9ad96-ea86-4aaa-9f76-504bbfac4b32/bin/uautomizer-verify-84ZbGMXZE1 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 -> 82435f17481c054c9c5a8a1deca188b6bf36f1a34e751392b5a27cd7180adc30 [2024-12-02 07:45:38,308 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 07:45:38,317 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 07:45:38,319 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 07:45:38,321 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 07:45:38,321 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 07:45:38,322 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72d9ad96-ea86-4aaa-9f76-504bbfac4b32/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/pthread-ext/37_stack_lock_p0_vs_concur.i [2024-12-02 07:45:40,905 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72d9ad96-ea86-4aaa-9f76-504bbfac4b32/bin/uautomizer-verify-84ZbGMXZE1/data/0ee04e1ae/0adabc38bc2f4e5ea9fa67a3e4fbadb6/FLAG23efad3ff [2024-12-02 07:45:41,137 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 07:45:41,137 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72d9ad96-ea86-4aaa-9f76-504bbfac4b32/sv-benchmarks/c/pthread-ext/37_stack_lock_p0_vs_concur.i [2024-12-02 07:45:41,149 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72d9ad96-ea86-4aaa-9f76-504bbfac4b32/bin/uautomizer-verify-84ZbGMXZE1/data/0ee04e1ae/0adabc38bc2f4e5ea9fa67a3e4fbadb6/FLAG23efad3ff [2024-12-02 07:45:41,476 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72d9ad96-ea86-4aaa-9f76-504bbfac4b32/bin/uautomizer-verify-84ZbGMXZE1/data/0ee04e1ae/0adabc38bc2f4e5ea9fa67a3e4fbadb6 [2024-12-02 07:45:41,478 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 07:45:41,479 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 07:45:41,480 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 07:45:41,480 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 07:45:41,484 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 07:45:41,485 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 07:45:41" (1/1) ... [2024-12-02 07:45:41,485 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@724a6e3c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:45:41, skipping insertion in model container [2024-12-02 07:45:41,485 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 07:45:41" (1/1) ... [2024-12-02 07:45:41,511 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 07:45:41,760 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 07:45:41,775 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 07:45:41,812 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 07:45:41,848 INFO L204 MainTranslator]: Completed translation [2024-12-02 07:45:41,848 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:45:41 WrapperNode [2024-12-02 07:45:41,848 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 07:45:41,849 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 07:45:41,849 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 07:45:41,849 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 07:45:41,856 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:45:41" (1/1) ... [2024-12-02 07:45:41,866 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:45:41" (1/1) ... [2024-12-02 07:45:41,883 INFO L138 Inliner]: procedures = 165, calls = 30, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 150 [2024-12-02 07:45:41,883 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 07:45:41,884 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 07:45:41,884 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 07:45:41,884 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 07:45:41,893 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:45:41" (1/1) ... [2024-12-02 07:45:41,893 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:45:41" (1/1) ... [2024-12-02 07:45:41,896 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:45:41" (1/1) ... [2024-12-02 07:45:41,910 INFO L175 MemorySlicer]: Split 14 memory accesses to 3 slices as follows [2, 5, 7]. 50 percent of accesses are in the largest equivalence class. The 8 initializations are split as follows [2, 5, 1]. The 2 writes are split as follows [0, 0, 2]. [2024-12-02 07:45:41,910 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:45:41" (1/1) ... [2024-12-02 07:45:41,910 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:45:41" (1/1) ... [2024-12-02 07:45:41,916 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:45:41" (1/1) ... [2024-12-02 07:45:41,917 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:45:41" (1/1) ... [2024-12-02 07:45:41,920 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:45:41" (1/1) ... [2024-12-02 07:45:41,921 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:45:41" (1/1) ... [2024-12-02 07:45:41,921 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:45:41" (1/1) ... [2024-12-02 07:45:41,923 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 07:45:41,923 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 07:45:41,923 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 07:45:41,923 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 07:45:41,924 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:45:41" (1/1) ... [2024-12-02 07:45:41,928 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 07:45:41,938 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72d9ad96-ea86-4aaa-9f76-504bbfac4b32/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:45:41,949 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72d9ad96-ea86-4aaa-9f76-504bbfac4b32/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 07:45:41,951 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72d9ad96-ea86-4aaa-9f76-504bbfac4b32/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 07:45:41,968 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-12-02 07:45:41,969 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-12-02 07:45:41,969 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-12-02 07:45:41,969 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2024-12-02 07:45:41,969 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2024-12-02 07:45:41,969 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-12-02 07:45:41,969 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-12-02 07:45:41,969 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-12-02 07:45:41,969 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-12-02 07:45:41,969 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 07:45:41,969 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-12-02 07:45:41,969 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-12-02 07:45:41,969 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 07:45:41,969 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-12-02 07:45:41,969 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-12-02 07:45:41,970 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-12-02 07:45:41,970 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 07:45:41,970 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 07:45:41,971 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-12-02 07:45:42,065 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 07:45:42,067 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 07:45:42,312 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-12-02 07:45:42,312 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 07:45:42,633 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 07:45:42,633 INFO L312 CfgBuilder]: Removed 4 assume(true) statements. [2024-12-02 07:45:42,634 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:45:42 BoogieIcfgContainer [2024-12-02 07:45:42,634 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 07:45:42,636 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 07:45:42,636 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 07:45:42,640 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 07:45:42,640 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 07:45:41" (1/3) ... [2024-12-02 07:45:42,641 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ebb2346 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 07:45:42, skipping insertion in model container [2024-12-02 07:45:42,641 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:45:41" (2/3) ... [2024-12-02 07:45:42,641 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ebb2346 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 07:45:42, skipping insertion in model container [2024-12-02 07:45:42,641 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:45:42" (3/3) ... [2024-12-02 07:45:42,642 INFO L128 eAbstractionObserver]: Analyzing ICFG 37_stack_lock_p0_vs_concur.i [2024-12-02 07:45:42,657 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 07:45:42,658 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 37_stack_lock_p0_vs_concur.i that has 2 procedures, 46 locations, 1 initial locations, 2 loop locations, and 16 error locations. [2024-12-02 07:45:42,659 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-12-02 07:45:42,720 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-12-02 07:45:42,749 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 49 places, 50 transitions, 104 flow [2024-12-02 07:45:42,779 INFO L124 PetriNetUnfolderBase]: 4/54 cut-off events. [2024-12-02 07:45:42,781 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-12-02 07:45:42,783 INFO L83 FinitePrefix]: Finished finitePrefix Result has 58 conditions, 54 events. 4/54 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 125 event pairs, 0 based on Foata normal form. 0/31 useless extension candidates. Maximal degree in co-relation 47. Up to 2 conditions per place. [2024-12-02 07:45:42,783 INFO L82 GeneralOperation]: Start removeDead. Operand has 49 places, 50 transitions, 104 flow [2024-12-02 07:45:42,786 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 49 places, 50 transitions, 104 flow [2024-12-02 07:45:42,793 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 07:45:42,803 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;@7354d0c8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 07:45:42,803 INFO L334 AbstractCegarLoop]: Starting to check reachability of 32 error locations. [2024-12-02 07:45:42,808 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-12-02 07:45:42,808 INFO L124 PetriNetUnfolderBase]: 0/4 cut-off events. [2024-12-02 07:45:42,808 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-12-02 07:45:42,808 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 07:45:42,809 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-12-02 07:45:42,809 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [thr1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 29 more)] === [2024-12-02 07:45:42,814 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:45:42,814 INFO L85 PathProgramCache]: Analyzing trace with hash 440812, now seen corresponding path program 1 times [2024-12-02 07:45:42,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:45:42,821 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [325554566] [2024-12-02 07:45:42,821 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:45:42,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:45:43,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:45:43,420 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:45:43,420 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:45:43,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [325554566] [2024-12-02 07:45:43,421 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [325554566] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:45:43,421 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:45:43,421 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 07:45:43,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [947130613] [2024-12-02 07:45:43,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:45:43,428 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-02 07:45:43,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:45:43,448 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-02 07:45:43,448 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 07:45:43,449 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 50 [2024-12-02 07:45:43,451 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 50 transitions, 104 flow. Second operand has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:45:43,451 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 07:45:43,451 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 50 [2024-12-02 07:45:43,452 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 07:45:43,539 INFO L124 PetriNetUnfolderBase]: 37/152 cut-off events. [2024-12-02 07:45:43,539 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-12-02 07:45:43,540 INFO L83 FinitePrefix]: Finished finitePrefix Result has 249 conditions, 152 events. 37/152 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 492 event pairs, 34 based on Foata normal form. 6/124 useless extension candidates. Maximal degree in co-relation 236. Up to 93 conditions per place. [2024-12-02 07:45:43,542 INFO L140 encePairwiseOnDemand]: 45/50 looper letters, 21 selfloop transitions, 0 changer transitions 0/42 dead transitions. [2024-12-02 07:45:43,542 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 42 transitions, 130 flow [2024-12-02 07:45:43,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-02 07:45:43,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-12-02 07:45:43,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 70 transitions. [2024-12-02 07:45:43,555 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7 [2024-12-02 07:45:43,557 INFO L175 Difference]: Start difference. First operand has 49 places, 50 transitions, 104 flow. Second operand 2 states and 70 transitions. [2024-12-02 07:45:43,557 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 42 transitions, 130 flow [2024-12-02 07:45:43,561 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 42 transitions, 130 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-12-02 07:45:43,564 INFO L231 Difference]: Finished difference. Result has 45 places, 42 transitions, 88 flow [2024-12-02 07:45:43,566 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=88, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=88, PETRI_PLACES=45, PETRI_TRANSITIONS=42} [2024-12-02 07:45:43,570 INFO L279 CegarLoopForPetriNet]: 49 programPoint places, -4 predicate places. [2024-12-02 07:45:43,570 INFO L471 AbstractCegarLoop]: Abstraction has has 45 places, 42 transitions, 88 flow [2024-12-02 07:45:43,570 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:45:43,570 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 07:45:43,571 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2024-12-02 07:45:43,571 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-02 07:45:43,571 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 29 more)] === [2024-12-02 07:45:43,571 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:45:43,572 INFO L85 PathProgramCache]: Analyzing trace with hash 248924377, now seen corresponding path program 1 times [2024-12-02 07:45:43,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:45:43,572 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1992374577] [2024-12-02 07:45:43,572 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:45:43,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:45:43,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 07:45:43,890 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 07:45:43,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 07:45:43,931 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-12-02 07:45:43,931 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-12-02 07:45:43,933 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (31 of 32 remaining) [2024-12-02 07:45:43,934 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (30 of 32 remaining) [2024-12-02 07:45:43,934 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (29 of 32 remaining) [2024-12-02 07:45:43,934 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (28 of 32 remaining) [2024-12-02 07:45:43,934 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (27 of 32 remaining) [2024-12-02 07:45:43,935 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (26 of 32 remaining) [2024-12-02 07:45:43,935 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (25 of 32 remaining) [2024-12-02 07:45:43,935 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (24 of 32 remaining) [2024-12-02 07:45:43,935 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (23 of 32 remaining) [2024-12-02 07:45:43,935 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONARRAY_INDEX (22 of 32 remaining) [2024-12-02 07:45:43,935 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (21 of 32 remaining) [2024-12-02 07:45:43,935 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (20 of 32 remaining) [2024-12-02 07:45:43,935 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONARRAY_INDEX (19 of 32 remaining) [2024-12-02 07:45:43,935 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONMEMORY_LEAK (18 of 32 remaining) [2024-12-02 07:45:43,935 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12REQUIRES_VIOLATIONMEMORY_DEREFERENCE (17 of 32 remaining) [2024-12-02 07:45:43,935 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (16 of 32 remaining) [2024-12-02 07:45:43,936 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (15 of 32 remaining) [2024-12-02 07:45:43,936 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (14 of 32 remaining) [2024-12-02 07:45:43,936 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 32 remaining) [2024-12-02 07:45:43,936 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 32 remaining) [2024-12-02 07:45:43,936 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 32 remaining) [2024-12-02 07:45:43,936 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 32 remaining) [2024-12-02 07:45:43,936 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 32 remaining) [2024-12-02 07:45:43,936 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 32 remaining) [2024-12-02 07:45:43,936 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 32 remaining) [2024-12-02 07:45:43,936 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONARRAY_INDEX (6 of 32 remaining) [2024-12-02 07:45:43,937 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 32 remaining) [2024-12-02 07:45:43,937 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 32 remaining) [2024-12-02 07:45:43,937 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONARRAY_INDEX (3 of 32 remaining) [2024-12-02 07:45:43,937 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONMEMORY_LEAK (2 of 32 remaining) [2024-12-02 07:45:43,937 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 32 remaining) [2024-12-02 07:45:43,937 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 32 remaining) [2024-12-02 07:45:43,937 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 07:45:43,938 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2024-12-02 07:45:43,940 WARN L246 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-12-02 07:45:43,940 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-12-02 07:45:43,980 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-12-02 07:45:43,983 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 90 places, 93 transitions, 196 flow [2024-12-02 07:45:44,004 INFO L124 PetriNetUnfolderBase]: 8/102 cut-off events. [2024-12-02 07:45:44,004 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-12-02 07:45:44,005 INFO L83 FinitePrefix]: Finished finitePrefix Result has 110 conditions, 102 events. 8/102 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 385 event pairs, 0 based on Foata normal form. 0/58 useless extension candidates. Maximal degree in co-relation 89. Up to 3 conditions per place. [2024-12-02 07:45:44,005 INFO L82 GeneralOperation]: Start removeDead. Operand has 90 places, 93 transitions, 196 flow [2024-12-02 07:45:44,007 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 90 places, 93 transitions, 196 flow [2024-12-02 07:45:44,008 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 07:45:44,009 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;@7354d0c8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 07:45:44,009 INFO L334 AbstractCegarLoop]: Starting to check reachability of 47 error locations. [2024-12-02 07:45:44,011 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-12-02 07:45:44,011 INFO L124 PetriNetUnfolderBase]: 0/4 cut-off events. [2024-12-02 07:45:44,011 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-12-02 07:45:44,011 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 07:45:44,011 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-12-02 07:45:44,012 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [thr1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 44 more)] === [2024-12-02 07:45:44,012 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:45:44,012 INFO L85 PathProgramCache]: Analyzing trace with hash 533161, now seen corresponding path program 1 times [2024-12-02 07:45:44,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:45:44,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2059429418] [2024-12-02 07:45:44,012 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:45:44,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:45:44,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:45:44,293 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:45:44,293 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:45:44,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2059429418] [2024-12-02 07:45:44,293 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2059429418] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:45:44,293 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:45:44,293 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 07:45:44,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [169761935] [2024-12-02 07:45:44,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:45:44,294 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-02 07:45:44,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:45:44,294 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-02 07:45:44,294 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 07:45:44,295 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 42 out of 93 [2024-12-02 07:45:44,295 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 93 transitions, 196 flow. Second operand has 2 states, 2 states have (on average 43.0) internal successors, (86), 2 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:45:44,295 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 07:45:44,295 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 42 of 93 [2024-12-02 07:45:44,295 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 07:45:44,842 INFO L124 PetriNetUnfolderBase]: 1675/3949 cut-off events. [2024-12-02 07:45:44,842 INFO L125 PetriNetUnfolderBase]: For 54/54 co-relation queries the response was YES. [2024-12-02 07:45:44,849 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6709 conditions, 3949 events. 1675/3949 cut-off events. For 54/54 co-relation queries the response was YES. Maximal size of possible extension queue 136. Compared 28863 event pairs, 1564 based on Foata normal form. 219/3344 useless extension candidates. Maximal degree in co-relation 6023. Up to 2701 conditions per place. [2024-12-02 07:45:44,866 INFO L140 encePairwiseOnDemand]: 84/93 looper letters, 39 selfloop transitions, 0 changer transitions 0/80 dead transitions. [2024-12-02 07:45:44,866 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 80 transitions, 248 flow [2024-12-02 07:45:44,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-02 07:45:44,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-12-02 07:45:44,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 132 transitions. [2024-12-02 07:45:44,868 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7096774193548387 [2024-12-02 07:45:44,868 INFO L175 Difference]: Start difference. First operand has 90 places, 93 transitions, 196 flow. Second operand 2 states and 132 transitions. [2024-12-02 07:45:44,868 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 80 transitions, 248 flow [2024-12-02 07:45:44,869 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 80 transitions, 248 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-12-02 07:45:44,871 INFO L231 Difference]: Finished difference. Result has 84 places, 80 transitions, 170 flow [2024-12-02 07:45:44,871 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=93, PETRI_DIFFERENCE_MINUEND_FLOW=170, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=170, PETRI_PLACES=84, PETRI_TRANSITIONS=80} [2024-12-02 07:45:44,872 INFO L279 CegarLoopForPetriNet]: 90 programPoint places, -6 predicate places. [2024-12-02 07:45:44,872 INFO L471 AbstractCegarLoop]: Abstraction has has 84 places, 80 transitions, 170 flow [2024-12-02 07:45:44,872 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 43.0) internal successors, (86), 2 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:45:44,872 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 07:45:44,872 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-12-02 07:45:44,872 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 07:45:44,872 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thr1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 44 more)] === [2024-12-02 07:45:44,873 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:45:44,873 INFO L85 PathProgramCache]: Analyzing trace with hash -1293472843, now seen corresponding path program 1 times [2024-12-02 07:45:44,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:45:44,873 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1939245776] [2024-12-02 07:45:44,873 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:45:44,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:45:45,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:45:45,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:45:45,334 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:45:45,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1939245776] [2024-12-02 07:45:45,334 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1939245776] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:45:45,334 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:45:45,335 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-12-02 07:45:45,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [227581850] [2024-12-02 07:45:45,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:45:45,335 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 07:45:45,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:45:45,335 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 07:45:45,336 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 07:45:45,336 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 42 out of 93 [2024-12-02 07:45:45,336 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 80 transitions, 170 flow. Second operand has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:45:45,336 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 07:45:45,337 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 42 of 93 [2024-12-02 07:45:45,337 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 07:45:45,817 INFO L124 PetriNetUnfolderBase]: 1759/4111 cut-off events. [2024-12-02 07:45:45,817 INFO L125 PetriNetUnfolderBase]: For 63/63 co-relation queries the response was YES. [2024-12-02 07:45:45,825 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7022 conditions, 4111 events. 1759/4111 cut-off events. For 63/63 co-relation queries the response was YES. Maximal size of possible extension queue 146. Compared 30237 event pairs, 612 based on Foata normal form. 0/3236 useless extension candidates. Maximal degree in co-relation 7017. Up to 2714 conditions per place. [2024-12-02 07:45:45,841 INFO L140 encePairwiseOnDemand]: 86/93 looper letters, 47 selfloop transitions, 3 changer transitions 0/91 dead transitions. [2024-12-02 07:45:45,841 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 91 transitions, 297 flow [2024-12-02 07:45:45,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 07:45:45,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-12-02 07:45:45,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 180 transitions. [2024-12-02 07:45:45,843 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6451612903225806 [2024-12-02 07:45:45,843 INFO L175 Difference]: Start difference. First operand has 84 places, 80 transitions, 170 flow. Second operand 3 states and 180 transitions. [2024-12-02 07:45:45,843 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 91 transitions, 297 flow [2024-12-02 07:45:45,844 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 91 transitions, 297 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-12-02 07:45:45,846 INFO L231 Difference]: Finished difference. Result has 87 places, 82 transitions, 195 flow [2024-12-02 07:45:45,847 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=93, PETRI_DIFFERENCE_MINUEND_FLOW=170, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=77, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=195, PETRI_PLACES=87, PETRI_TRANSITIONS=82} [2024-12-02 07:45:45,847 INFO L279 CegarLoopForPetriNet]: 90 programPoint places, -3 predicate places. [2024-12-02 07:45:45,847 INFO L471 AbstractCegarLoop]: Abstraction has has 87 places, 82 transitions, 195 flow [2024-12-02 07:45:45,848 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:45:45,848 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 07:45:45,848 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-12-02 07:45:45,848 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 07:45:45,848 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thr1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 44 more)] === [2024-12-02 07:45:45,848 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:45:45,848 INFO L85 PathProgramCache]: Analyzing trace with hash -1293472841, now seen corresponding path program 1 times [2024-12-02 07:45:45,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:45:45,849 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1520023139] [2024-12-02 07:45:45,849 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:45:45,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:45:46,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:45:46,217 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:45:46,217 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:45:46,217 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1520023139] [2024-12-02 07:45:46,217 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1520023139] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:45:46,217 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:45:46,217 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 07:45:46,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [531253556] [2024-12-02 07:45:46,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:45:46,218 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 07:45:46,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:45:46,218 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 07:45:46,218 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 07:45:46,255 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 35 out of 93 [2024-12-02 07:45:46,256 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 82 transitions, 195 flow. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:45:46,256 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 07:45:46,256 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 35 of 93 [2024-12-02 07:45:46,256 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 07:45:47,041 INFO L124 PetriNetUnfolderBase]: 3529/7485 cut-off events. [2024-12-02 07:45:47,042 INFO L125 PetriNetUnfolderBase]: For 178/178 co-relation queries the response was YES. [2024-12-02 07:45:47,054 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13896 conditions, 7485 events. 3529/7485 cut-off events. For 178/178 co-relation queries the response was YES. Maximal size of possible extension queue 207. Compared 55445 event pairs, 1644 based on Foata normal form. 0/6135 useless extension candidates. Maximal degree in co-relation 13889. Up to 3218 conditions per place. [2024-12-02 07:45:47,120 INFO L140 encePairwiseOnDemand]: 79/93 looper letters, 75 selfloop transitions, 8 changer transitions 0/117 dead transitions. [2024-12-02 07:45:47,121 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 117 transitions, 449 flow [2024-12-02 07:45:47,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 07:45:47,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-12-02 07:45:47,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 191 transitions. [2024-12-02 07:45:47,123 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6845878136200717 [2024-12-02 07:45:47,123 INFO L175 Difference]: Start difference. First operand has 87 places, 82 transitions, 195 flow. Second operand 3 states and 191 transitions. [2024-12-02 07:45:47,123 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 117 transitions, 449 flow [2024-12-02 07:45:47,124 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 117 transitions, 445 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-12-02 07:45:47,126 INFO L231 Difference]: Finished difference. Result has 90 places, 89 transitions, 266 flow [2024-12-02 07:45:47,126 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=93, PETRI_DIFFERENCE_MINUEND_FLOW=192, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=266, PETRI_PLACES=90, PETRI_TRANSITIONS=89} [2024-12-02 07:45:47,127 INFO L279 CegarLoopForPetriNet]: 90 programPoint places, 0 predicate places. [2024-12-02 07:45:47,127 INFO L471 AbstractCegarLoop]: Abstraction has has 90 places, 89 transitions, 266 flow [2024-12-02 07:45:47,127 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:45:47,127 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 07:45:47,128 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-12-02 07:45:47,128 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-02 07:45:47,128 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thr1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 44 more)] === [2024-12-02 07:45:47,128 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:45:47,128 INFO L85 PathProgramCache]: Analyzing trace with hash -1293472840, now seen corresponding path program 1 times [2024-12-02 07:45:47,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:45:47,129 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [383408558] [2024-12-02 07:45:47,129 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:45:47,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:45:47,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:45:47,429 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:45:47,429 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:45:47,429 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [383408558] [2024-12-02 07:45:47,429 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [383408558] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:45:47,429 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:45:47,429 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 07:45:47,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1341720206] [2024-12-02 07:45:47,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:45:47,430 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 07:45:47,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:45:47,430 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 07:45:47,430 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 07:45:47,464 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 38 out of 93 [2024-12-02 07:45:47,464 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 89 transitions, 266 flow. Second operand has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:45:47,464 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 07:45:47,464 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 38 of 93 [2024-12-02 07:45:47,464 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 07:45:47,995 INFO L124 PetriNetUnfolderBase]: 2543/5677 cut-off events. [2024-12-02 07:45:47,995 INFO L125 PetriNetUnfolderBase]: For 1528/1573 co-relation queries the response was YES. [2024-12-02 07:45:48,002 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11334 conditions, 5677 events. 2543/5677 cut-off events. For 1528/1573 co-relation queries the response was YES. Maximal size of possible extension queue 153. Compared 41430 event pairs, 1015 based on Foata normal form. 663/5608 useless extension candidates. Maximal degree in co-relation 11326. Up to 3310 conditions per place. [2024-12-02 07:45:48,021 INFO L140 encePairwiseOnDemand]: 85/93 looper letters, 61 selfloop transitions, 3 changer transitions 0/104 dead transitions. [2024-12-02 07:45:48,022 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 104 transitions, 437 flow [2024-12-02 07:45:48,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 07:45:48,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-12-02 07:45:48,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 177 transitions. [2024-12-02 07:45:48,023 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6344086021505376 [2024-12-02 07:45:48,023 INFO L175 Difference]: Start difference. First operand has 90 places, 89 transitions, 266 flow. Second operand 3 states and 177 transitions. [2024-12-02 07:45:48,024 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 104 transitions, 437 flow [2024-12-02 07:45:48,030 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 104 transitions, 421 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-12-02 07:45:48,032 INFO L231 Difference]: Finished difference. Result has 84 places, 83 transitions, 242 flow [2024-12-02 07:45:48,033 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=93, PETRI_DIFFERENCE_MINUEND_FLOW=236, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=242, PETRI_PLACES=84, PETRI_TRANSITIONS=83} [2024-12-02 07:45:48,033 INFO L279 CegarLoopForPetriNet]: 90 programPoint places, -6 predicate places. [2024-12-02 07:45:48,033 INFO L471 AbstractCegarLoop]: Abstraction has has 84 places, 83 transitions, 242 flow [2024-12-02 07:45:48,034 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:45:48,034 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 07:45:48,034 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 2, 1, 1, 1, 1] [2024-12-02 07:45:48,034 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-02 07:45:48,034 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 44 more)] === [2024-12-02 07:45:48,034 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:45:48,034 INFO L85 PathProgramCache]: Analyzing trace with hash -1112452359, now seen corresponding path program 1 times [2024-12-02 07:45:48,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:45:48,035 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [909261048] [2024-12-02 07:45:48,035 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:45:48,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:45:48,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 07:45:48,270 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 07:45:48,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 07:45:48,290 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-12-02 07:45:48,290 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-12-02 07:45:48,290 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (46 of 47 remaining) [2024-12-02 07:45:48,290 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (45 of 47 remaining) [2024-12-02 07:45:48,291 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (44 of 47 remaining) [2024-12-02 07:45:48,291 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (43 of 47 remaining) [2024-12-02 07:45:48,291 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (42 of 47 remaining) [2024-12-02 07:45:48,291 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (41 of 47 remaining) [2024-12-02 07:45:48,291 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (40 of 47 remaining) [2024-12-02 07:45:48,291 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (39 of 47 remaining) [2024-12-02 07:45:48,291 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (38 of 47 remaining) [2024-12-02 07:45:48,291 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONARRAY_INDEX (37 of 47 remaining) [2024-12-02 07:45:48,291 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (36 of 47 remaining) [2024-12-02 07:45:48,291 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (35 of 47 remaining) [2024-12-02 07:45:48,291 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONARRAY_INDEX (34 of 47 remaining) [2024-12-02 07:45:48,291 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONMEMORY_LEAK (33 of 47 remaining) [2024-12-02 07:45:48,291 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12REQUIRES_VIOLATIONMEMORY_DEREFERENCE (32 of 47 remaining) [2024-12-02 07:45:48,292 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (31 of 47 remaining) [2024-12-02 07:45:48,292 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (30 of 47 remaining) [2024-12-02 07:45:48,292 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (29 of 47 remaining) [2024-12-02 07:45:48,292 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (28 of 47 remaining) [2024-12-02 07:45:48,292 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (27 of 47 remaining) [2024-12-02 07:45:48,292 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (26 of 47 remaining) [2024-12-02 07:45:48,292 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (25 of 47 remaining) [2024-12-02 07:45:48,292 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (24 of 47 remaining) [2024-12-02 07:45:48,292 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (23 of 47 remaining) [2024-12-02 07:45:48,292 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (22 of 47 remaining) [2024-12-02 07:45:48,292 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONARRAY_INDEX (21 of 47 remaining) [2024-12-02 07:45:48,292 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (20 of 47 remaining) [2024-12-02 07:45:48,292 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (19 of 47 remaining) [2024-12-02 07:45:48,292 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONARRAY_INDEX (18 of 47 remaining) [2024-12-02 07:45:48,292 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONMEMORY_LEAK (17 of 47 remaining) [2024-12-02 07:45:48,293 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12REQUIRES_VIOLATIONMEMORY_DEREFERENCE (16 of 47 remaining) [2024-12-02 07:45:48,293 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (15 of 47 remaining) [2024-12-02 07:45:48,293 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (14 of 47 remaining) [2024-12-02 07:45:48,293 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 47 remaining) [2024-12-02 07:45:48,293 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 47 remaining) [2024-12-02 07:45:48,293 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 47 remaining) [2024-12-02 07:45:48,293 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 47 remaining) [2024-12-02 07:45:48,293 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 47 remaining) [2024-12-02 07:45:48,293 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 47 remaining) [2024-12-02 07:45:48,293 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 47 remaining) [2024-12-02 07:45:48,293 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONARRAY_INDEX (6 of 47 remaining) [2024-12-02 07:45:48,293 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 47 remaining) [2024-12-02 07:45:48,293 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 47 remaining) [2024-12-02 07:45:48,293 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONARRAY_INDEX (3 of 47 remaining) [2024-12-02 07:45:48,293 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONMEMORY_LEAK (2 of 47 remaining) [2024-12-02 07:45:48,294 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 47 remaining) [2024-12-02 07:45:48,294 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 47 remaining) [2024-12-02 07:45:48,294 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-12-02 07:45:48,294 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2024-12-02 07:45:48,295 WARN L246 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-12-02 07:45:48,295 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-12-02 07:45:48,346 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-12-02 07:45:48,348 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 131 places, 136 transitions, 290 flow [2024-12-02 07:45:48,368 INFO L124 PetriNetUnfolderBase]: 12/150 cut-off events. [2024-12-02 07:45:48,368 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-12-02 07:45:48,369 INFO L83 FinitePrefix]: Finished finitePrefix Result has 163 conditions, 150 events. 12/150 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 674 event pairs, 0 based on Foata normal form. 0/85 useless extension candidates. Maximal degree in co-relation 131. Up to 4 conditions per place. [2024-12-02 07:45:48,369 INFO L82 GeneralOperation]: Start removeDead. Operand has 131 places, 136 transitions, 290 flow [2024-12-02 07:45:48,371 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 131 places, 136 transitions, 290 flow [2024-12-02 07:45:48,372 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 07:45:48,372 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;@7354d0c8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 07:45:48,372 INFO L334 AbstractCegarLoop]: Starting to check reachability of 62 error locations. [2024-12-02 07:45:48,374 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-12-02 07:45:48,374 INFO L124 PetriNetUnfolderBase]: 0/4 cut-off events. [2024-12-02 07:45:48,374 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-12-02 07:45:48,374 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 07:45:48,374 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-12-02 07:45:48,374 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [thr1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 59 more)] === [2024-12-02 07:45:48,375 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:45:48,375 INFO L85 PathProgramCache]: Analyzing trace with hash 668209, now seen corresponding path program 1 times [2024-12-02 07:45:48,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:45:48,375 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1754602212] [2024-12-02 07:45:48,375 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:45:48,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:45:48,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:45:48,673 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:45:48,674 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:45:48,674 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1754602212] [2024-12-02 07:45:48,674 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1754602212] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:45:48,674 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:45:48,674 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 07:45:48,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [384290186] [2024-12-02 07:45:48,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:45:48,674 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-02 07:45:48,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:45:48,675 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-02 07:45:48,675 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 07:45:48,675 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 136 [2024-12-02 07:45:48,675 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 131 places, 136 transitions, 290 flow. Second operand has 2 states, 2 states have (on average 63.0) internal successors, (126), 2 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:45:48,675 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 07:45:48,675 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 136 [2024-12-02 07:45:48,675 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 07:45:53,748 INFO L124 PetriNetUnfolderBase]: 48655/90651 cut-off events. [2024-12-02 07:45:53,748 INFO L125 PetriNetUnfolderBase]: For 2090/2090 co-relation queries the response was YES. [2024-12-02 07:45:53,841 INFO L83 FinitePrefix]: Finished finitePrefix Result has 159166 conditions, 90651 events. 48655/90651 cut-off events. For 2090/2090 co-relation queries the response was YES. Maximal size of possible extension queue 2059. Compared 896910 event pairs, 45628 based on Foata normal form. 5916/78704 useless extension candidates. Maximal degree in co-relation 79316. Up to 67159 conditions per place. [2024-12-02 07:45:54,131 INFO L140 encePairwiseOnDemand]: 123/136 looper letters, 57 selfloop transitions, 0 changer transitions 0/118 dead transitions. [2024-12-02 07:45:54,132 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 123 places, 118 transitions, 368 flow [2024-12-02 07:45:54,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-02 07:45:54,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-12-02 07:45:54,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 194 transitions. [2024-12-02 07:45:54,133 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7132352941176471 [2024-12-02 07:45:54,133 INFO L175 Difference]: Start difference. First operand has 131 places, 136 transitions, 290 flow. Second operand 2 states and 194 transitions. [2024-12-02 07:45:54,133 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 123 places, 118 transitions, 368 flow [2024-12-02 07:45:54,135 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 123 places, 118 transitions, 366 flow, removed 1 selfloop flow, removed 0 redundant places. [2024-12-02 07:45:54,136 INFO L231 Difference]: Finished difference. Result has 123 places, 118 transitions, 252 flow [2024-12-02 07:45:54,136 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=252, PETRI_DIFFERENCE_MINUEND_PLACES=122, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=118, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=118, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=252, PETRI_PLACES=123, PETRI_TRANSITIONS=118} [2024-12-02 07:45:54,137 INFO L279 CegarLoopForPetriNet]: 131 programPoint places, -8 predicate places. [2024-12-02 07:45:54,137 INFO L471 AbstractCegarLoop]: Abstraction has has 123 places, 118 transitions, 252 flow [2024-12-02 07:45:54,137 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 63.0) internal successors, (126), 2 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:45:54,137 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 07:45:54,137 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-12-02 07:45:54,137 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-12-02 07:45:54,137 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thr1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 59 more)] === [2024-12-02 07:45:54,137 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:45:54,138 INFO L85 PathProgramCache]: Analyzing trace with hash -1563838901, now seen corresponding path program 1 times [2024-12-02 07:45:54,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:45:54,138 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1457891208] [2024-12-02 07:45:54,138 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:45:54,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:45:54,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:45:54,541 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:45:54,541 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:45:54,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1457891208] [2024-12-02 07:45:54,541 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1457891208] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:45:54,541 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:45:54,541 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-12-02 07:45:54,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1880163781] [2024-12-02 07:45:54,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:45:54,542 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 07:45:54,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:45:54,542 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 07:45:54,542 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 07:45:54,543 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 136 [2024-12-02 07:45:54,543 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 118 transitions, 252 flow. Second operand has 3 states, 3 states have (on average 63.666666666666664) internal successors, (191), 3 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:45:54,543 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 07:45:54,543 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 136 [2024-12-02 07:45:54,543 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 07:45:59,688 INFO L124 PetriNetUnfolderBase]: 49258/91539 cut-off events. [2024-12-02 07:45:59,688 INFO L125 PetriNetUnfolderBase]: For 1116/1116 co-relation queries the response was YES. [2024-12-02 07:45:59,799 INFO L83 FinitePrefix]: Finished finitePrefix Result has 160652 conditions, 91539 events. 49258/91539 cut-off events. For 1116/1116 co-relation queries the response was YES. Maximal size of possible extension queue 2238. Compared 907716 event pairs, 23334 based on Foata normal form. 0/73415 useless extension candidates. Maximal degree in co-relation 160646. Up to 67322 conditions per place. [2024-12-02 07:46:00,056 INFO L140 encePairwiseOnDemand]: 126/136 looper letters, 69 selfloop transitions, 4 changer transitions 0/134 dead transitions. [2024-12-02 07:46:00,057 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 134 transitions, 440 flow [2024-12-02 07:46:00,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 07:46:00,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-12-02 07:46:00,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 265 transitions. [2024-12-02 07:46:00,058 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6495098039215687 [2024-12-02 07:46:00,058 INFO L175 Difference]: Start difference. First operand has 123 places, 118 transitions, 252 flow. Second operand 3 states and 265 transitions. [2024-12-02 07:46:00,058 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 134 transitions, 440 flow [2024-12-02 07:46:00,059 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 125 places, 134 transitions, 440 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-12-02 07:46:00,061 INFO L231 Difference]: Finished difference. Result has 126 places, 121 transitions, 288 flow [2024-12-02 07:46:00,061 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=252, PETRI_DIFFERENCE_MINUEND_PLACES=123, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=118, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=114, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=288, PETRI_PLACES=126, PETRI_TRANSITIONS=121} [2024-12-02 07:46:00,061 INFO L279 CegarLoopForPetriNet]: 131 programPoint places, -5 predicate places. [2024-12-02 07:46:00,061 INFO L471 AbstractCegarLoop]: Abstraction has has 126 places, 121 transitions, 288 flow [2024-12-02 07:46:00,062 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 63.666666666666664) internal successors, (191), 3 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:46:00,062 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 07:46:00,062 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-12-02 07:46:00,062 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-12-02 07:46:00,062 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thr1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 59 more)] === [2024-12-02 07:46:00,062 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:46:00,062 INFO L85 PathProgramCache]: Analyzing trace with hash -1563838899, now seen corresponding path program 1 times [2024-12-02 07:46:00,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:46:00,062 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [503575631] [2024-12-02 07:46:00,063 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:46:00,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:46:00,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:46:00,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:46:00,320 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:46:00,320 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [503575631] [2024-12-02 07:46:00,320 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [503575631] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:46:00,320 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:46:00,320 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 07:46:00,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [662628443] [2024-12-02 07:46:00,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:46:00,321 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 07:46:00,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:46:00,321 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 07:46:00,321 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 07:46:00,359 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 136 [2024-12-02 07:46:00,359 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 126 places, 121 transitions, 288 flow. Second operand has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:46:00,359 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 07:46:00,359 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 136 [2024-12-02 07:46:00,359 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 07:46:12,213 INFO L124 PetriNetUnfolderBase]: 105512/182402 cut-off events. [2024-12-02 07:46:12,213 INFO L125 PetriNetUnfolderBase]: For 6244/6244 co-relation queries the response was YES. [2024-12-02 07:46:12,492 INFO L83 FinitePrefix]: Finished finitePrefix Result has 348576 conditions, 182402 events. 105512/182402 cut-off events. For 6244/6244 co-relation queries the response was YES. Maximal size of possible extension queue 3751. Compared 1812320 event pairs, 52476 based on Foata normal form. 0/149783 useless extension candidates. Maximal degree in co-relation 348568. Up to 88326 conditions per place. [2024-12-02 07:46:13,074 INFO L140 encePairwiseOnDemand]: 121/136 looper letters, 112 selfloop transitions, 9 changer transitions 0/175 dead transitions. [2024-12-02 07:46:13,074 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 128 places, 175 transitions, 670 flow [2024-12-02 07:46:13,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 07:46:13,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-12-02 07:46:13,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 287 transitions. [2024-12-02 07:46:13,076 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7034313725490197 [2024-12-02 07:46:13,076 INFO L175 Difference]: Start difference. First operand has 126 places, 121 transitions, 288 flow. Second operand 3 states and 287 transitions. [2024-12-02 07:46:13,076 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 128 places, 175 transitions, 670 flow [2024-12-02 07:46:13,081 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 127 places, 175 transitions, 664 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-12-02 07:46:13,084 INFO L231 Difference]: Finished difference. Result has 129 places, 129 transitions, 366 flow [2024-12-02 07:46:13,084 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=284, PETRI_DIFFERENCE_MINUEND_PLACES=125, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=121, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=112, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=366, PETRI_PLACES=129, PETRI_TRANSITIONS=129} [2024-12-02 07:46:13,085 INFO L279 CegarLoopForPetriNet]: 131 programPoint places, -2 predicate places. [2024-12-02 07:46:13,085 INFO L471 AbstractCegarLoop]: Abstraction has has 129 places, 129 transitions, 366 flow [2024-12-02 07:46:13,085 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:46:13,085 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 07:46:13,085 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-12-02 07:46:13,085 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-12-02 07:46:13,086 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thr1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 59 more)] === [2024-12-02 07:46:13,086 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:46:13,086 INFO L85 PathProgramCache]: Analyzing trace with hash -1563838898, now seen corresponding path program 1 times [2024-12-02 07:46:13,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:46:13,086 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [264610322] [2024-12-02 07:46:13,086 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:46:13,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:46:13,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:46:13,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:46:13,503 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:46:13,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [264610322] [2024-12-02 07:46:13,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [264610322] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:46:13,503 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:46:13,503 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 07:46:13,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932912530] [2024-12-02 07:46:13,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:46:13,504 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 07:46:13,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:46:13,504 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 07:46:13,504 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 07:46:13,545 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 136 [2024-12-02 07:46:13,545 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 129 transitions, 366 flow. Second operand has 3 states, 3 states have (on average 59.666666666666664) internal successors, (179), 3 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:46:13,545 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 07:46:13,545 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 136 [2024-12-02 07:46:13,545 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 07:46:23,079 INFO L124 PetriNetUnfolderBase]: 81446/149500 cut-off events. [2024-12-02 07:46:23,079 INFO L125 PetriNetUnfolderBase]: For 34962/35808 co-relation queries the response was YES. [2024-12-02 07:46:23,310 INFO L83 FinitePrefix]: Finished finitePrefix Result has 301160 conditions, 149500 events. 81446/149500 cut-off events. For 34962/35808 co-relation queries the response was YES. Maximal size of possible extension queue 2994. Compared 1522773 event pairs, 38911 based on Foata normal form. 12357/140488 useless extension candidates. Maximal degree in co-relation 301151. Up to 94384 conditions per place. [2024-12-02 07:46:23,744 INFO L140 encePairwiseOnDemand]: 128/136 looper letters, 100 selfloop transitions, 3 changer transitions 0/163 dead transitions. [2024-12-02 07:46:23,744 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 163 transitions, 668 flow [2024-12-02 07:46:23,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 07:46:23,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-12-02 07:46:23,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 273 transitions. [2024-12-02 07:46:23,746 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6691176470588235 [2024-12-02 07:46:23,746 INFO L175 Difference]: Start difference. First operand has 129 places, 129 transitions, 366 flow. Second operand 3 states and 273 transitions. [2024-12-02 07:46:23,746 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 163 transitions, 668 flow [2024-12-02 07:46:23,826 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 123 places, 163 transitions, 650 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-12-02 07:46:23,828 INFO L231 Difference]: Finished difference. Result has 123 places, 123 transitions, 340 flow [2024-12-02 07:46:23,829 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=334, PETRI_DIFFERENCE_MINUEND_PLACES=121, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=123, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=120, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=340, PETRI_PLACES=123, PETRI_TRANSITIONS=123} [2024-12-02 07:46:23,830 INFO L279 CegarLoopForPetriNet]: 131 programPoint places, -8 predicate places. [2024-12-02 07:46:23,830 INFO L471 AbstractCegarLoop]: Abstraction has has 123 places, 123 transitions, 340 flow [2024-12-02 07:46:23,830 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.666666666666664) internal successors, (179), 3 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:46:23,830 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 07:46:23,830 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:46:23,830 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-12-02 07:46:23,830 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thr1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thr1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 59 more)] === [2024-12-02 07:46:23,831 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:46:23,831 INFO L85 PathProgramCache]: Analyzing trace with hash 1772446441, now seen corresponding path program 1 times [2024-12-02 07:46:23,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:46:23,831 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [700462103] [2024-12-02 07:46:23,831 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:46:23,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:46:24,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:46:24,173 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:46:24,174 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:46:24,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [700462103] [2024-12-02 07:46:24,174 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [700462103] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:46:24,174 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:46:24,174 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 07:46:24,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441082967] [2024-12-02 07:46:24,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:46:24,174 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 07:46:24,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:46:24,174 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 07:46:24,175 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 07:46:24,212 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 136 [2024-12-02 07:46:24,212 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 123 transitions, 340 flow. Second operand has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 3 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:46:24,212 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 07:46:24,212 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 136 [2024-12-02 07:46:24,212 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 07:46:42,727 INFO L124 PetriNetUnfolderBase]: 167431/282494 cut-off events. [2024-12-02 07:46:42,727 INFO L125 PetriNetUnfolderBase]: For 56580/58521 co-relation queries the response was YES. [2024-12-02 07:46:43,149 INFO L83 FinitePrefix]: Finished finitePrefix Result has 584587 conditions, 282494 events. 167431/282494 cut-off events. For 56580/58521 co-relation queries the response was YES. Maximal size of possible extension queue 6065. Compared 2853541 event pairs, 67778 based on Foata normal form. 0/246979 useless extension candidates. Maximal degree in co-relation 584578. Up to 137761 conditions per place. [2024-12-02 07:46:43,930 INFO L140 encePairwiseOnDemand]: 121/136 looper letters, 114 selfloop transitions, 12 changer transitions 0/179 dead transitions. [2024-12-02 07:46:43,930 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 179 transitions, 761 flow [2024-12-02 07:46:43,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 07:46:43,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-12-02 07:46:43,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 282 transitions. [2024-12-02 07:46:43,931 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6911764705882353 [2024-12-02 07:46:43,931 INFO L175 Difference]: Start difference. First operand has 123 places, 123 transitions, 340 flow. Second operand 3 states and 282 transitions. [2024-12-02 07:46:43,931 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 179 transitions, 761 flow [2024-12-02 07:46:44,220 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 123 places, 179 transitions, 749 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-12-02 07:46:44,222 INFO L231 Difference]: Finished difference. Result has 125 places, 134 transitions, 452 flow [2024-12-02 07:46:44,222 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=334, PETRI_DIFFERENCE_MINUEND_PLACES=121, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=123, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=111, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=452, PETRI_PLACES=125, PETRI_TRANSITIONS=134} [2024-12-02 07:46:44,223 INFO L279 CegarLoopForPetriNet]: 131 programPoint places, -6 predicate places. [2024-12-02 07:46:44,223 INFO L471 AbstractCegarLoop]: Abstraction has has 125 places, 134 transitions, 452 flow [2024-12-02 07:46:44,223 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 3 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:46:44,223 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 07:46:44,223 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:46:44,223 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-12-02 07:46:44,223 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thr1Err3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thr1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 59 more)] === [2024-12-02 07:46:44,223 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:46:44,223 INFO L85 PathProgramCache]: Analyzing trace with hash 1772446442, now seen corresponding path program 1 times [2024-12-02 07:46:44,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:46:44,224 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1566192542] [2024-12-02 07:46:44,224 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:46:44,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:46:44,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:46:44,474 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:46:44,474 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:46:44,475 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1566192542] [2024-12-02 07:46:44,475 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1566192542] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:46:44,475 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:46:44,475 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 07:46:44,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1675935854] [2024-12-02 07:46:44,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:46:44,475 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 07:46:44,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:46:44,475 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 07:46:44,476 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 07:46:44,516 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 136 [2024-12-02 07:46:44,516 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 134 transitions, 452 flow. Second operand has 3 states, 3 states have (on average 60.333333333333336) internal successors, (181), 3 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:46:44,516 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 07:46:44,516 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 136 [2024-12-02 07:46:44,516 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 07:46:58,765 INFO L124 PetriNetUnfolderBase]: 122975/218994 cut-off events. [2024-12-02 07:46:58,766 INFO L125 PetriNetUnfolderBase]: For 94432/97111 co-relation queries the response was YES. [2024-12-02 07:46:59,111 INFO L83 FinitePrefix]: Finished finitePrefix Result has 483361 conditions, 218994 events. 122975/218994 cut-off events. For 94432/97111 co-relation queries the response was YES. Maximal size of possible extension queue 4640. Compared 2273194 event pairs, 34313 based on Foata normal form. 19902/219302 useless extension candidates. Maximal degree in co-relation 483351. Up to 141042 conditions per place. [2024-12-02 07:46:59,717 INFO L140 encePairwiseOnDemand]: 128/136 looper letters, 105 selfloop transitions, 5 changer transitions 0/169 dead transitions. [2024-12-02 07:46:59,717 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 169 transitions, 791 flow [2024-12-02 07:46:59,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 07:46:59,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-12-02 07:46:59,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 268 transitions. [2024-12-02 07:46:59,718 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6568627450980392 [2024-12-02 07:46:59,718 INFO L175 Difference]: Start difference. First operand has 125 places, 134 transitions, 452 flow. Second operand 3 states and 268 transitions. [2024-12-02 07:46:59,719 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 121 places, 169 transitions, 791 flow [2024-12-02 07:46:59,787 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 119 places, 169 transitions, 767 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-12-02 07:46:59,789 INFO L231 Difference]: Finished difference. Result has 119 places, 128 transitions, 424 flow [2024-12-02 07:46:59,790 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=414, PETRI_DIFFERENCE_MINUEND_PLACES=117, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=128, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=123, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=424, PETRI_PLACES=119, PETRI_TRANSITIONS=128} [2024-12-02 07:46:59,790 INFO L279 CegarLoopForPetriNet]: 131 programPoint places, -12 predicate places. [2024-12-02 07:46:59,790 INFO L471 AbstractCegarLoop]: Abstraction has has 119 places, 128 transitions, 424 flow [2024-12-02 07:46:59,790 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 60.333333333333336) internal successors, (181), 3 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:46:59,790 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 07:46:59,790 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:46:59,790 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-12-02 07:46:59,790 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting thr1Err8ASSERT_VIOLATIONARRAY_INDEX === [thr1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 59 more)] === [2024-12-02 07:46:59,791 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:46:59,791 INFO L85 PathProgramCache]: Analyzing trace with hash 547471926, now seen corresponding path program 1 times [2024-12-02 07:46:59,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:46:59,791 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1073056476] [2024-12-02 07:46:59,791 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:46:59,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:46:59,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:47:00,130 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:47:00,130 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:47:00,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1073056476] [2024-12-02 07:47:00,130 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1073056476] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:47:00,130 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:47:00,130 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 07:47:00,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258241777] [2024-12-02 07:47:00,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:47:00,130 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 07:47:00,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:47:00,131 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 07:47:00,131 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 07:47:00,193 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 136 [2024-12-02 07:47:00,193 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 119 places, 128 transitions, 424 flow. Second operand has 5 states, 5 states have (on average 61.6) internal successors, (308), 5 states have internal predecessors, (308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:47:00,193 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 07:47:00,193 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 136 [2024-12-02 07:47:00,193 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 07:47:11,846 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([668] L701-4-->L713-4: Formula: (= |v_#valid_35| (store |v_#valid_36| |v_thr1Thread3of3ForFork0_push_~#newTop~0#1.base_25| 0)) InVars {thr1Thread3of3ForFork0_push_~#newTop~0#1.base=|v_thr1Thread3of3ForFork0_push_~#newTop~0#1.base_25|, #valid=|v_#valid_36|} OutVars{thr1Thread3of3ForFork0_push_~oldTop~0#1=|v_thr1Thread3of3ForFork0_push_~oldTop~0#1_3|, thr1Thread3of3ForFork0_push_#t~mem2#1=|v_thr1Thread3of3ForFork0_push_#t~mem2#1_5|, thr1Thread3of3ForFork0_push_~#newTop~0#1.offset=|v_thr1Thread3of3ForFork0_push_~#newTop~0#1.offset_21|, #valid=|v_#valid_35|, thr1Thread3of3ForFork0_push_#t~mem1#1=|v_thr1Thread3of3ForFork0_push_#t~mem1#1_9|, thr1Thread3of3ForFork0_push_~d#1=|v_thr1Thread3of3ForFork0_push_~d#1_3|, thr1Thread3of3ForFork0_push_#t~ret6#1=|v_thr1Thread3of3ForFork0_push_#t~ret6#1_3|, thr1Thread3of3ForFork0_push_#t~ret3#1=|v_thr1Thread3of3ForFork0_push_#t~ret3#1_3|, thr1Thread3of3ForFork0_push_#t~mem4#1=|v_thr1Thread3of3ForFork0_push_#t~mem4#1_3|, thr1Thread3of3ForFork0_push_#in~d#1=|v_thr1Thread3of3ForFork0_push_#in~d#1_3|, thr1Thread3of3ForFork0_push_#t~mem5#1=|v_thr1Thread3of3ForFork0_push_#t~mem5#1_3|} AuxVars[] AssignedVars[thr1Thread3of3ForFork0_push_~oldTop~0#1, thr1Thread3of3ForFork0_push_#t~mem2#1, thr1Thread3of3ForFork0_push_~#newTop~0#1.offset, #valid, thr1Thread3of3ForFork0_push_~#newTop~0#1.base, thr1Thread3of3ForFork0_push_#t~mem1#1, thr1Thread3of3ForFork0_push_~d#1, thr1Thread3of3ForFork0_push_#t~ret6#1, thr1Thread3of3ForFork0_push_#t~ret3#1, thr1Thread3of3ForFork0_push_#t~mem4#1, thr1Thread3of3ForFork0_push_#in~d#1, thr1Thread3of3ForFork0_push_#t~mem5#1][181], [130#true, 132#true, 6#L713-4true, 134#true, Black: 138#(= ~next_alloc_idx~0 1), 95#L701true, 155#(and (= (select |#length| |thr1Thread2of3ForFork0_push_~#newTop~0#1.base|) 4) (= |thr1Thread2of3ForFork0_push_~#newTop~0#1.offset| 0)), Black: 142#(= (select |#valid| |thr1Thread1of3ForFork0_push_~#newTop~0#1.base|) 1), 156#true, Black: 150#(= (select |#valid| |thr1Thread2of3ForFork0_push_~#newTop~0#1.base|) 1), 128#true, 21#L719-5true, 46#L704-1true]) [2024-12-02 07:47:11,847 INFO L294 olderBase$Statistics]: this new event has 53 ancestors and is cut-off event [2024-12-02 07:47:11,847 INFO L297 olderBase$Statistics]: existing Event has 53 ancestors and is cut-off event [2024-12-02 07:47:11,847 INFO L297 olderBase$Statistics]: existing Event has 53 ancestors and is cut-off event [2024-12-02 07:47:11,847 INFO L297 olderBase$Statistics]: existing Event has 34 ancestors and is cut-off event [2024-12-02 07:47:12,151 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([668] L701-4-->L713-4: Formula: (= |v_#valid_35| (store |v_#valid_36| |v_thr1Thread3of3ForFork0_push_~#newTop~0#1.base_25| 0)) InVars {thr1Thread3of3ForFork0_push_~#newTop~0#1.base=|v_thr1Thread3of3ForFork0_push_~#newTop~0#1.base_25|, #valid=|v_#valid_36|} OutVars{thr1Thread3of3ForFork0_push_~oldTop~0#1=|v_thr1Thread3of3ForFork0_push_~oldTop~0#1_3|, thr1Thread3of3ForFork0_push_#t~mem2#1=|v_thr1Thread3of3ForFork0_push_#t~mem2#1_5|, thr1Thread3of3ForFork0_push_~#newTop~0#1.offset=|v_thr1Thread3of3ForFork0_push_~#newTop~0#1.offset_21|, #valid=|v_#valid_35|, thr1Thread3of3ForFork0_push_#t~mem1#1=|v_thr1Thread3of3ForFork0_push_#t~mem1#1_9|, thr1Thread3of3ForFork0_push_~d#1=|v_thr1Thread3of3ForFork0_push_~d#1_3|, thr1Thread3of3ForFork0_push_#t~ret6#1=|v_thr1Thread3of3ForFork0_push_#t~ret6#1_3|, thr1Thread3of3ForFork0_push_#t~ret3#1=|v_thr1Thread3of3ForFork0_push_#t~ret3#1_3|, thr1Thread3of3ForFork0_push_#t~mem4#1=|v_thr1Thread3of3ForFork0_push_#t~mem4#1_3|, thr1Thread3of3ForFork0_push_#in~d#1=|v_thr1Thread3of3ForFork0_push_#in~d#1_3|, thr1Thread3of3ForFork0_push_#t~mem5#1=|v_thr1Thread3of3ForFork0_push_#t~mem5#1_3|} AuxVars[] AssignedVars[thr1Thread3of3ForFork0_push_~oldTop~0#1, thr1Thread3of3ForFork0_push_#t~mem2#1, thr1Thread3of3ForFork0_push_~#newTop~0#1.offset, #valid, thr1Thread3of3ForFork0_push_~#newTop~0#1.base, thr1Thread3of3ForFork0_push_#t~mem1#1, thr1Thread3of3ForFork0_push_~d#1, thr1Thread3of3ForFork0_push_#t~ret6#1, thr1Thread3of3ForFork0_push_#t~ret3#1, thr1Thread3of3ForFork0_push_#t~mem4#1, thr1Thread3of3ForFork0_push_#in~d#1, thr1Thread3of3ForFork0_push_#t~mem5#1][181], [130#true, 132#true, 6#L713-4true, 134#true, Black: 138#(= ~next_alloc_idx~0 1), 95#L701true, 155#(and (= (select |#length| |thr1Thread2of3ForFork0_push_~#newTop~0#1.base|) 4) (= |thr1Thread2of3ForFork0_push_~#newTop~0#1.offset| 0)), Black: 142#(= (select |#valid| |thr1Thread1of3ForFork0_push_~#newTop~0#1.base|) 1), 156#true, Black: 150#(= (select |#valid| |thr1Thread2of3ForFork0_push_~#newTop~0#1.base|) 1), 128#true, 98#L719-7true, 46#L704-1true]) [2024-12-02 07:47:12,151 INFO L294 olderBase$Statistics]: this new event has 54 ancestors and is cut-off event [2024-12-02 07:47:12,151 INFO L297 olderBase$Statistics]: existing Event has 54 ancestors and is cut-off event [2024-12-02 07:47:12,151 INFO L297 olderBase$Statistics]: existing Event has 54 ancestors and is cut-off event [2024-12-02 07:47:12,151 INFO L297 olderBase$Statistics]: existing Event has 35 ancestors and is cut-off event [2024-12-02 07:47:12,456 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([668] L701-4-->L713-4: Formula: (= |v_#valid_35| (store |v_#valid_36| |v_thr1Thread3of3ForFork0_push_~#newTop~0#1.base_25| 0)) InVars {thr1Thread3of3ForFork0_push_~#newTop~0#1.base=|v_thr1Thread3of3ForFork0_push_~#newTop~0#1.base_25|, #valid=|v_#valid_36|} OutVars{thr1Thread3of3ForFork0_push_~oldTop~0#1=|v_thr1Thread3of3ForFork0_push_~oldTop~0#1_3|, thr1Thread3of3ForFork0_push_#t~mem2#1=|v_thr1Thread3of3ForFork0_push_#t~mem2#1_5|, thr1Thread3of3ForFork0_push_~#newTop~0#1.offset=|v_thr1Thread3of3ForFork0_push_~#newTop~0#1.offset_21|, #valid=|v_#valid_35|, thr1Thread3of3ForFork0_push_#t~mem1#1=|v_thr1Thread3of3ForFork0_push_#t~mem1#1_9|, thr1Thread3of3ForFork0_push_~d#1=|v_thr1Thread3of3ForFork0_push_~d#1_3|, thr1Thread3of3ForFork0_push_#t~ret6#1=|v_thr1Thread3of3ForFork0_push_#t~ret6#1_3|, thr1Thread3of3ForFork0_push_#t~ret3#1=|v_thr1Thread3of3ForFork0_push_#t~ret3#1_3|, thr1Thread3of3ForFork0_push_#t~mem4#1=|v_thr1Thread3of3ForFork0_push_#t~mem4#1_3|, thr1Thread3of3ForFork0_push_#in~d#1=|v_thr1Thread3of3ForFork0_push_#in~d#1_3|, thr1Thread3of3ForFork0_push_#t~mem5#1=|v_thr1Thread3of3ForFork0_push_#t~mem5#1_3|} AuxVars[] AssignedVars[thr1Thread3of3ForFork0_push_~oldTop~0#1, thr1Thread3of3ForFork0_push_#t~mem2#1, thr1Thread3of3ForFork0_push_~#newTop~0#1.offset, #valid, thr1Thread3of3ForFork0_push_~#newTop~0#1.base, thr1Thread3of3ForFork0_push_#t~mem1#1, thr1Thread3of3ForFork0_push_~d#1, thr1Thread3of3ForFork0_push_#t~ret6#1, thr1Thread3of3ForFork0_push_#t~ret3#1, thr1Thread3of3ForFork0_push_#t~mem4#1, thr1Thread3of3ForFork0_push_#in~d#1, thr1Thread3of3ForFork0_push_#t~mem5#1][181], [130#true, 132#true, 6#L713-4true, 134#true, Black: 138#(= ~next_alloc_idx~0 1), 95#L701true, 155#(and (= (select |#length| |thr1Thread2of3ForFork0_push_~#newTop~0#1.base|) 4) (= |thr1Thread2of3ForFork0_push_~#newTop~0#1.offset| 0)), Black: 142#(= (select |#valid| |thr1Thread1of3ForFork0_push_~#newTop~0#1.base|) 1), 156#true, Black: 150#(= (select |#valid| |thr1Thread2of3ForFork0_push_~#newTop~0#1.base|) 1), 96#L719-4true, 128#true, 46#L704-1true]) [2024-12-02 07:47:12,456 INFO L294 olderBase$Statistics]: this new event has 55 ancestors and is cut-off event [2024-12-02 07:47:12,456 INFO L297 olderBase$Statistics]: existing Event has 55 ancestors and is cut-off event [2024-12-02 07:47:12,456 INFO L297 olderBase$Statistics]: existing Event has 36 ancestors and is cut-off event [2024-12-02 07:47:12,456 INFO L297 olderBase$Statistics]: existing Event has 55 ancestors and is cut-off event [2024-12-02 07:47:13,590 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([668] L701-4-->L713-4: Formula: (= |v_#valid_35| (store |v_#valid_36| |v_thr1Thread3of3ForFork0_push_~#newTop~0#1.base_25| 0)) InVars {thr1Thread3of3ForFork0_push_~#newTop~0#1.base=|v_thr1Thread3of3ForFork0_push_~#newTop~0#1.base_25|, #valid=|v_#valid_36|} OutVars{thr1Thread3of3ForFork0_push_~oldTop~0#1=|v_thr1Thread3of3ForFork0_push_~oldTop~0#1_3|, thr1Thread3of3ForFork0_push_#t~mem2#1=|v_thr1Thread3of3ForFork0_push_#t~mem2#1_5|, thr1Thread3of3ForFork0_push_~#newTop~0#1.offset=|v_thr1Thread3of3ForFork0_push_~#newTop~0#1.offset_21|, #valid=|v_#valid_35|, thr1Thread3of3ForFork0_push_#t~mem1#1=|v_thr1Thread3of3ForFork0_push_#t~mem1#1_9|, thr1Thread3of3ForFork0_push_~d#1=|v_thr1Thread3of3ForFork0_push_~d#1_3|, thr1Thread3of3ForFork0_push_#t~ret6#1=|v_thr1Thread3of3ForFork0_push_#t~ret6#1_3|, thr1Thread3of3ForFork0_push_#t~ret3#1=|v_thr1Thread3of3ForFork0_push_#t~ret3#1_3|, thr1Thread3of3ForFork0_push_#t~mem4#1=|v_thr1Thread3of3ForFork0_push_#t~mem4#1_3|, thr1Thread3of3ForFork0_push_#in~d#1=|v_thr1Thread3of3ForFork0_push_#in~d#1_3|, thr1Thread3of3ForFork0_push_#t~mem5#1=|v_thr1Thread3of3ForFork0_push_#t~mem5#1_3|} AuxVars[] AssignedVars[thr1Thread3of3ForFork0_push_~oldTop~0#1, thr1Thread3of3ForFork0_push_#t~mem2#1, thr1Thread3of3ForFork0_push_~#newTop~0#1.offset, #valid, thr1Thread3of3ForFork0_push_~#newTop~0#1.base, thr1Thread3of3ForFork0_push_#t~mem1#1, thr1Thread3of3ForFork0_push_~d#1, thr1Thread3of3ForFork0_push_#t~ret6#1, thr1Thread3of3ForFork0_push_#t~ret3#1, thr1Thread3of3ForFork0_push_#t~mem4#1, thr1Thread3of3ForFork0_push_#in~d#1, thr1Thread3of3ForFork0_push_#t~mem5#1][181], [130#true, 132#true, 6#L713-4true, 134#true, Black: 138#(= ~next_alloc_idx~0 1), 95#L701true, 155#(and (= (select |#length| |thr1Thread2of3ForFork0_push_~#newTop~0#1.base|) 4) (= |thr1Thread2of3ForFork0_push_~#newTop~0#1.offset| 0)), Black: 142#(= (select |#valid| |thr1Thread1of3ForFork0_push_~#newTop~0#1.base|) 1), 4#L707-1true, 156#true, Black: 150#(= (select |#valid| |thr1Thread2of3ForFork0_push_~#newTop~0#1.base|) 1), 128#true, 21#L719-5true]) [2024-12-02 07:47:13,590 INFO L294 olderBase$Statistics]: this new event has 57 ancestors and is cut-off event [2024-12-02 07:47:13,590 INFO L297 olderBase$Statistics]: existing Event has 38 ancestors and is cut-off event [2024-12-02 07:47:13,590 INFO L297 olderBase$Statistics]: existing Event has 57 ancestors and is cut-off event [2024-12-02 07:47:13,590 INFO L297 olderBase$Statistics]: existing Event has 57 ancestors and is cut-off event [2024-12-02 07:47:13,800 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([668] L701-4-->L713-4: Formula: (= |v_#valid_35| (store |v_#valid_36| |v_thr1Thread3of3ForFork0_push_~#newTop~0#1.base_25| 0)) InVars {thr1Thread3of3ForFork0_push_~#newTop~0#1.base=|v_thr1Thread3of3ForFork0_push_~#newTop~0#1.base_25|, #valid=|v_#valid_36|} OutVars{thr1Thread3of3ForFork0_push_~oldTop~0#1=|v_thr1Thread3of3ForFork0_push_~oldTop~0#1_3|, thr1Thread3of3ForFork0_push_#t~mem2#1=|v_thr1Thread3of3ForFork0_push_#t~mem2#1_5|, thr1Thread3of3ForFork0_push_~#newTop~0#1.offset=|v_thr1Thread3of3ForFork0_push_~#newTop~0#1.offset_21|, #valid=|v_#valid_35|, thr1Thread3of3ForFork0_push_#t~mem1#1=|v_thr1Thread3of3ForFork0_push_#t~mem1#1_9|, thr1Thread3of3ForFork0_push_~d#1=|v_thr1Thread3of3ForFork0_push_~d#1_3|, thr1Thread3of3ForFork0_push_#t~ret6#1=|v_thr1Thread3of3ForFork0_push_#t~ret6#1_3|, thr1Thread3of3ForFork0_push_#t~ret3#1=|v_thr1Thread3of3ForFork0_push_#t~ret3#1_3|, thr1Thread3of3ForFork0_push_#t~mem4#1=|v_thr1Thread3of3ForFork0_push_#t~mem4#1_3|, thr1Thread3of3ForFork0_push_#in~d#1=|v_thr1Thread3of3ForFork0_push_#in~d#1_3|, thr1Thread3of3ForFork0_push_#t~mem5#1=|v_thr1Thread3of3ForFork0_push_#t~mem5#1_3|} AuxVars[] AssignedVars[thr1Thread3of3ForFork0_push_~oldTop~0#1, thr1Thread3of3ForFork0_push_#t~mem2#1, thr1Thread3of3ForFork0_push_~#newTop~0#1.offset, #valid, thr1Thread3of3ForFork0_push_~#newTop~0#1.base, thr1Thread3of3ForFork0_push_#t~mem1#1, thr1Thread3of3ForFork0_push_~d#1, thr1Thread3of3ForFork0_push_#t~ret6#1, thr1Thread3of3ForFork0_push_#t~ret3#1, thr1Thread3of3ForFork0_push_#t~mem4#1, thr1Thread3of3ForFork0_push_#in~d#1, thr1Thread3of3ForFork0_push_#t~mem5#1][181], [130#true, 132#true, 6#L713-4true, 134#true, Black: 138#(= ~next_alloc_idx~0 1), 95#L701true, 155#(and (= (select |#length| |thr1Thread2of3ForFork0_push_~#newTop~0#1.base|) 4) (= |thr1Thread2of3ForFork0_push_~#newTop~0#1.offset| 0)), Black: 142#(= (select |#valid| |thr1Thread1of3ForFork0_push_~#newTop~0#1.base|) 1), 4#L707-1true, 156#true, Black: 150#(= (select |#valid| |thr1Thread2of3ForFork0_push_~#newTop~0#1.base|) 1), 128#true, 98#L719-7true]) [2024-12-02 07:47:13,800 INFO L294 olderBase$Statistics]: this new event has 58 ancestors and is cut-off event [2024-12-02 07:47:13,800 INFO L297 olderBase$Statistics]: existing Event has 39 ancestors and is cut-off event [2024-12-02 07:47:13,800 INFO L297 olderBase$Statistics]: existing Event has 58 ancestors and is cut-off event [2024-12-02 07:47:13,800 INFO L297 olderBase$Statistics]: existing Event has 58 ancestors and is cut-off event [2024-12-02 07:47:13,993 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([668] L701-4-->L713-4: Formula: (= |v_#valid_35| (store |v_#valid_36| |v_thr1Thread3of3ForFork0_push_~#newTop~0#1.base_25| 0)) InVars {thr1Thread3of3ForFork0_push_~#newTop~0#1.base=|v_thr1Thread3of3ForFork0_push_~#newTop~0#1.base_25|, #valid=|v_#valid_36|} OutVars{thr1Thread3of3ForFork0_push_~oldTop~0#1=|v_thr1Thread3of3ForFork0_push_~oldTop~0#1_3|, thr1Thread3of3ForFork0_push_#t~mem2#1=|v_thr1Thread3of3ForFork0_push_#t~mem2#1_5|, thr1Thread3of3ForFork0_push_~#newTop~0#1.offset=|v_thr1Thread3of3ForFork0_push_~#newTop~0#1.offset_21|, #valid=|v_#valid_35|, thr1Thread3of3ForFork0_push_#t~mem1#1=|v_thr1Thread3of3ForFork0_push_#t~mem1#1_9|, thr1Thread3of3ForFork0_push_~d#1=|v_thr1Thread3of3ForFork0_push_~d#1_3|, thr1Thread3of3ForFork0_push_#t~ret6#1=|v_thr1Thread3of3ForFork0_push_#t~ret6#1_3|, thr1Thread3of3ForFork0_push_#t~ret3#1=|v_thr1Thread3of3ForFork0_push_#t~ret3#1_3|, thr1Thread3of3ForFork0_push_#t~mem4#1=|v_thr1Thread3of3ForFork0_push_#t~mem4#1_3|, thr1Thread3of3ForFork0_push_#in~d#1=|v_thr1Thread3of3ForFork0_push_#in~d#1_3|, thr1Thread3of3ForFork0_push_#t~mem5#1=|v_thr1Thread3of3ForFork0_push_#t~mem5#1_3|} AuxVars[] AssignedVars[thr1Thread3of3ForFork0_push_~oldTop~0#1, thr1Thread3of3ForFork0_push_#t~mem2#1, thr1Thread3of3ForFork0_push_~#newTop~0#1.offset, #valid, thr1Thread3of3ForFork0_push_~#newTop~0#1.base, thr1Thread3of3ForFork0_push_#t~mem1#1, thr1Thread3of3ForFork0_push_~d#1, thr1Thread3of3ForFork0_push_#t~ret6#1, thr1Thread3of3ForFork0_push_#t~ret3#1, thr1Thread3of3ForFork0_push_#t~mem4#1, thr1Thread3of3ForFork0_push_#in~d#1, thr1Thread3of3ForFork0_push_#t~mem5#1][181], [130#true, 132#true, 6#L713-4true, 134#true, Black: 138#(= ~next_alloc_idx~0 1), 155#(and (= (select |#length| |thr1Thread2of3ForFork0_push_~#newTop~0#1.base|) 4) (= |thr1Thread2of3ForFork0_push_~#newTop~0#1.offset| 0)), 95#L701true, Black: 142#(= (select |#valid| |thr1Thread1of3ForFork0_push_~#newTop~0#1.base|) 1), 4#L707-1true, 156#true, 96#L719-4true, Black: 150#(= (select |#valid| |thr1Thread2of3ForFork0_push_~#newTop~0#1.base|) 1), 128#true]) [2024-12-02 07:47:13,993 INFO L294 olderBase$Statistics]: this new event has 59 ancestors and is cut-off event [2024-12-02 07:47:13,993 INFO L297 olderBase$Statistics]: existing Event has 59 ancestors and is cut-off event [2024-12-02 07:47:13,993 INFO L297 olderBase$Statistics]: existing Event has 59 ancestors and is cut-off event [2024-12-02 07:47:13,993 INFO L297 olderBase$Statistics]: existing Event has 40 ancestors and is cut-off event [2024-12-02 07:47:14,158 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([668] L701-4-->L713-4: Formula: (= |v_#valid_35| (store |v_#valid_36| |v_thr1Thread3of3ForFork0_push_~#newTop~0#1.base_25| 0)) InVars {thr1Thread3of3ForFork0_push_~#newTop~0#1.base=|v_thr1Thread3of3ForFork0_push_~#newTop~0#1.base_25|, #valid=|v_#valid_36|} OutVars{thr1Thread3of3ForFork0_push_~oldTop~0#1=|v_thr1Thread3of3ForFork0_push_~oldTop~0#1_3|, thr1Thread3of3ForFork0_push_#t~mem2#1=|v_thr1Thread3of3ForFork0_push_#t~mem2#1_5|, thr1Thread3of3ForFork0_push_~#newTop~0#1.offset=|v_thr1Thread3of3ForFork0_push_~#newTop~0#1.offset_21|, #valid=|v_#valid_35|, thr1Thread3of3ForFork0_push_#t~mem1#1=|v_thr1Thread3of3ForFork0_push_#t~mem1#1_9|, thr1Thread3of3ForFork0_push_~d#1=|v_thr1Thread3of3ForFork0_push_~d#1_3|, thr1Thread3of3ForFork0_push_#t~ret6#1=|v_thr1Thread3of3ForFork0_push_#t~ret6#1_3|, thr1Thread3of3ForFork0_push_#t~ret3#1=|v_thr1Thread3of3ForFork0_push_#t~ret3#1_3|, thr1Thread3of3ForFork0_push_#t~mem4#1=|v_thr1Thread3of3ForFork0_push_#t~mem4#1_3|, thr1Thread3of3ForFork0_push_#in~d#1=|v_thr1Thread3of3ForFork0_push_#in~d#1_3|, thr1Thread3of3ForFork0_push_#t~mem5#1=|v_thr1Thread3of3ForFork0_push_#t~mem5#1_3|} AuxVars[] AssignedVars[thr1Thread3of3ForFork0_push_~oldTop~0#1, thr1Thread3of3ForFork0_push_#t~mem2#1, thr1Thread3of3ForFork0_push_~#newTop~0#1.offset, #valid, thr1Thread3of3ForFork0_push_~#newTop~0#1.base, thr1Thread3of3ForFork0_push_#t~mem1#1, thr1Thread3of3ForFork0_push_~d#1, thr1Thread3of3ForFork0_push_#t~ret6#1, thr1Thread3of3ForFork0_push_#t~ret3#1, thr1Thread3of3ForFork0_push_#t~mem4#1, thr1Thread3of3ForFork0_push_#in~d#1, thr1Thread3of3ForFork0_push_#t~mem5#1][181], [130#true, 132#true, 77#L707-1true, 6#L713-4true, 134#true, Black: 138#(= ~next_alloc_idx~0 1), 155#(and (= (select |#length| |thr1Thread2of3ForFork0_push_~#newTop~0#1.base|) 4) (= |thr1Thread2of3ForFork0_push_~#newTop~0#1.offset| 0)), Black: 142#(= (select |#valid| |thr1Thread1of3ForFork0_push_~#newTop~0#1.base|) 1), 156#true, Black: 150#(= (select |#valid| |thr1Thread2of3ForFork0_push_~#newTop~0#1.base|) 1), 128#true, 21#L719-5true, 46#L704-1true]) [2024-12-02 07:47:14,158 INFO L294 olderBase$Statistics]: this new event has 59 ancestors and is cut-off event [2024-12-02 07:47:14,158 INFO L297 olderBase$Statistics]: existing Event has 59 ancestors and is cut-off event [2024-12-02 07:47:14,158 INFO L297 olderBase$Statistics]: existing Event has 40 ancestors and is cut-off event [2024-12-02 07:47:14,158 INFO L297 olderBase$Statistics]: existing Event has 59 ancestors and is cut-off event [2024-12-02 07:47:14,330 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([668] L701-4-->L713-4: Formula: (= |v_#valid_35| (store |v_#valid_36| |v_thr1Thread3of3ForFork0_push_~#newTop~0#1.base_25| 0)) InVars {thr1Thread3of3ForFork0_push_~#newTop~0#1.base=|v_thr1Thread3of3ForFork0_push_~#newTop~0#1.base_25|, #valid=|v_#valid_36|} OutVars{thr1Thread3of3ForFork0_push_~oldTop~0#1=|v_thr1Thread3of3ForFork0_push_~oldTop~0#1_3|, thr1Thread3of3ForFork0_push_#t~mem2#1=|v_thr1Thread3of3ForFork0_push_#t~mem2#1_5|, thr1Thread3of3ForFork0_push_~#newTop~0#1.offset=|v_thr1Thread3of3ForFork0_push_~#newTop~0#1.offset_21|, #valid=|v_#valid_35|, thr1Thread3of3ForFork0_push_#t~mem1#1=|v_thr1Thread3of3ForFork0_push_#t~mem1#1_9|, thr1Thread3of3ForFork0_push_~d#1=|v_thr1Thread3of3ForFork0_push_~d#1_3|, thr1Thread3of3ForFork0_push_#t~ret6#1=|v_thr1Thread3of3ForFork0_push_#t~ret6#1_3|, thr1Thread3of3ForFork0_push_#t~ret3#1=|v_thr1Thread3of3ForFork0_push_#t~ret3#1_3|, thr1Thread3of3ForFork0_push_#t~mem4#1=|v_thr1Thread3of3ForFork0_push_#t~mem4#1_3|, thr1Thread3of3ForFork0_push_#in~d#1=|v_thr1Thread3of3ForFork0_push_#in~d#1_3|, thr1Thread3of3ForFork0_push_#t~mem5#1=|v_thr1Thread3of3ForFork0_push_#t~mem5#1_3|} AuxVars[] AssignedVars[thr1Thread3of3ForFork0_push_~oldTop~0#1, thr1Thread3of3ForFork0_push_#t~mem2#1, thr1Thread3of3ForFork0_push_~#newTop~0#1.offset, #valid, thr1Thread3of3ForFork0_push_~#newTop~0#1.base, thr1Thread3of3ForFork0_push_#t~mem1#1, thr1Thread3of3ForFork0_push_~d#1, thr1Thread3of3ForFork0_push_#t~ret6#1, thr1Thread3of3ForFork0_push_#t~ret3#1, thr1Thread3of3ForFork0_push_#t~mem4#1, thr1Thread3of3ForFork0_push_#in~d#1, thr1Thread3of3ForFork0_push_#t~mem5#1][181], [130#true, 132#true, 77#L707-1true, 6#L713-4true, 134#true, Black: 138#(= ~next_alloc_idx~0 1), 155#(and (= (select |#length| |thr1Thread2of3ForFork0_push_~#newTop~0#1.base|) 4) (= |thr1Thread2of3ForFork0_push_~#newTop~0#1.offset| 0)), Black: 142#(= (select |#valid| |thr1Thread1of3ForFork0_push_~#newTop~0#1.base|) 1), 156#true, Black: 150#(= (select |#valid| |thr1Thread2of3ForFork0_push_~#newTop~0#1.base|) 1), 128#true, 98#L719-7true, 46#L704-1true]) [2024-12-02 07:47:14,330 INFO L294 olderBase$Statistics]: this new event has 60 ancestors and is cut-off event [2024-12-02 07:47:14,330 INFO L297 olderBase$Statistics]: existing Event has 41 ancestors and is cut-off event [2024-12-02 07:47:14,330 INFO L297 olderBase$Statistics]: existing Event has 60 ancestors and is cut-off event [2024-12-02 07:47:14,330 INFO L297 olderBase$Statistics]: existing Event has 60 ancestors and is cut-off event [2024-12-02 07:47:14,661 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([668] L701-4-->L713-4: Formula: (= |v_#valid_35| (store |v_#valid_36| |v_thr1Thread3of3ForFork0_push_~#newTop~0#1.base_25| 0)) InVars {thr1Thread3of3ForFork0_push_~#newTop~0#1.base=|v_thr1Thread3of3ForFork0_push_~#newTop~0#1.base_25|, #valid=|v_#valid_36|} OutVars{thr1Thread3of3ForFork0_push_~oldTop~0#1=|v_thr1Thread3of3ForFork0_push_~oldTop~0#1_3|, thr1Thread3of3ForFork0_push_#t~mem2#1=|v_thr1Thread3of3ForFork0_push_#t~mem2#1_5|, thr1Thread3of3ForFork0_push_~#newTop~0#1.offset=|v_thr1Thread3of3ForFork0_push_~#newTop~0#1.offset_21|, #valid=|v_#valid_35|, thr1Thread3of3ForFork0_push_#t~mem1#1=|v_thr1Thread3of3ForFork0_push_#t~mem1#1_9|, thr1Thread3of3ForFork0_push_~d#1=|v_thr1Thread3of3ForFork0_push_~d#1_3|, thr1Thread3of3ForFork0_push_#t~ret6#1=|v_thr1Thread3of3ForFork0_push_#t~ret6#1_3|, thr1Thread3of3ForFork0_push_#t~ret3#1=|v_thr1Thread3of3ForFork0_push_#t~ret3#1_3|, thr1Thread3of3ForFork0_push_#t~mem4#1=|v_thr1Thread3of3ForFork0_push_#t~mem4#1_3|, thr1Thread3of3ForFork0_push_#in~d#1=|v_thr1Thread3of3ForFork0_push_#in~d#1_3|, thr1Thread3of3ForFork0_push_#t~mem5#1=|v_thr1Thread3of3ForFork0_push_#t~mem5#1_3|} AuxVars[] AssignedVars[thr1Thread3of3ForFork0_push_~oldTop~0#1, thr1Thread3of3ForFork0_push_#t~mem2#1, thr1Thread3of3ForFork0_push_~#newTop~0#1.offset, #valid, thr1Thread3of3ForFork0_push_~#newTop~0#1.base, thr1Thread3of3ForFork0_push_#t~mem1#1, thr1Thread3of3ForFork0_push_~d#1, thr1Thread3of3ForFork0_push_#t~ret6#1, thr1Thread3of3ForFork0_push_#t~ret3#1, thr1Thread3of3ForFork0_push_#t~mem4#1, thr1Thread3of3ForFork0_push_#in~d#1, thr1Thread3of3ForFork0_push_#t~mem5#1][181], [130#true, 132#true, 77#L707-1true, 6#L713-4true, 134#true, Black: 138#(= ~next_alloc_idx~0 1), 155#(and (= (select |#length| |thr1Thread2of3ForFork0_push_~#newTop~0#1.base|) 4) (= |thr1Thread2of3ForFork0_push_~#newTop~0#1.offset| 0)), Black: 142#(= (select |#valid| |thr1Thread1of3ForFork0_push_~#newTop~0#1.base|) 1), 156#true, 96#L719-4true, Black: 150#(= (select |#valid| |thr1Thread2of3ForFork0_push_~#newTop~0#1.base|) 1), 128#true, 46#L704-1true]) [2024-12-02 07:47:14,661 INFO L294 olderBase$Statistics]: this new event has 61 ancestors and is cut-off event [2024-12-02 07:47:14,661 INFO L297 olderBase$Statistics]: existing Event has 61 ancestors and is cut-off event [2024-12-02 07:47:14,661 INFO L297 olderBase$Statistics]: existing Event has 42 ancestors and is cut-off event [2024-12-02 07:47:14,661 INFO L297 olderBase$Statistics]: existing Event has 61 ancestors and is cut-off event [2024-12-02 07:47:15,150 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([668] L701-4-->L713-4: Formula: (= |v_#valid_35| (store |v_#valid_36| |v_thr1Thread3of3ForFork0_push_~#newTop~0#1.base_25| 0)) InVars {thr1Thread3of3ForFork0_push_~#newTop~0#1.base=|v_thr1Thread3of3ForFork0_push_~#newTop~0#1.base_25|, #valid=|v_#valid_36|} OutVars{thr1Thread3of3ForFork0_push_~oldTop~0#1=|v_thr1Thread3of3ForFork0_push_~oldTop~0#1_3|, thr1Thread3of3ForFork0_push_#t~mem2#1=|v_thr1Thread3of3ForFork0_push_#t~mem2#1_5|, thr1Thread3of3ForFork0_push_~#newTop~0#1.offset=|v_thr1Thread3of3ForFork0_push_~#newTop~0#1.offset_21|, #valid=|v_#valid_35|, thr1Thread3of3ForFork0_push_#t~mem1#1=|v_thr1Thread3of3ForFork0_push_#t~mem1#1_9|, thr1Thread3of3ForFork0_push_~d#1=|v_thr1Thread3of3ForFork0_push_~d#1_3|, thr1Thread3of3ForFork0_push_#t~ret6#1=|v_thr1Thread3of3ForFork0_push_#t~ret6#1_3|, thr1Thread3of3ForFork0_push_#t~ret3#1=|v_thr1Thread3of3ForFork0_push_#t~ret3#1_3|, thr1Thread3of3ForFork0_push_#t~mem4#1=|v_thr1Thread3of3ForFork0_push_#t~mem4#1_3|, thr1Thread3of3ForFork0_push_#in~d#1=|v_thr1Thread3of3ForFork0_push_#in~d#1_3|, thr1Thread3of3ForFork0_push_#t~mem5#1=|v_thr1Thread3of3ForFork0_push_#t~mem5#1_3|} AuxVars[] AssignedVars[thr1Thread3of3ForFork0_push_~oldTop~0#1, thr1Thread3of3ForFork0_push_#t~mem2#1, thr1Thread3of3ForFork0_push_~#newTop~0#1.offset, #valid, thr1Thread3of3ForFork0_push_~#newTop~0#1.base, thr1Thread3of3ForFork0_push_#t~mem1#1, thr1Thread3of3ForFork0_push_~d#1, thr1Thread3of3ForFork0_push_#t~ret6#1, thr1Thread3of3ForFork0_push_#t~ret3#1, thr1Thread3of3ForFork0_push_#t~mem4#1, thr1Thread3of3ForFork0_push_#in~d#1, thr1Thread3of3ForFork0_push_#t~mem5#1][181], [130#true, 132#true, 77#L707-1true, 6#L713-4true, 134#true, Black: 138#(= ~next_alloc_idx~0 1), 155#(and (= (select |#length| |thr1Thread2of3ForFork0_push_~#newTop~0#1.base|) 4) (= |thr1Thread2of3ForFork0_push_~#newTop~0#1.offset| 0)), Black: 142#(= (select |#valid| |thr1Thread1of3ForFork0_push_~#newTop~0#1.base|) 1), 4#L707-1true, 156#true, Black: 150#(= (select |#valid| |thr1Thread2of3ForFork0_push_~#newTop~0#1.base|) 1), 128#true, 21#L719-5true]) [2024-12-02 07:47:15,150 INFO L294 olderBase$Statistics]: this new event has 63 ancestors and is cut-off event [2024-12-02 07:47:15,150 INFO L297 olderBase$Statistics]: existing Event has 44 ancestors and is cut-off event [2024-12-02 07:47:15,150 INFO L297 olderBase$Statistics]: existing Event has 63 ancestors and is cut-off event [2024-12-02 07:47:15,150 INFO L297 olderBase$Statistics]: existing Event has 63 ancestors and is cut-off event [2024-12-02 07:47:15,252 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([668] L701-4-->L713-4: Formula: (= |v_#valid_35| (store |v_#valid_36| |v_thr1Thread3of3ForFork0_push_~#newTop~0#1.base_25| 0)) InVars {thr1Thread3of3ForFork0_push_~#newTop~0#1.base=|v_thr1Thread3of3ForFork0_push_~#newTop~0#1.base_25|, #valid=|v_#valid_36|} OutVars{thr1Thread3of3ForFork0_push_~oldTop~0#1=|v_thr1Thread3of3ForFork0_push_~oldTop~0#1_3|, thr1Thread3of3ForFork0_push_#t~mem2#1=|v_thr1Thread3of3ForFork0_push_#t~mem2#1_5|, thr1Thread3of3ForFork0_push_~#newTop~0#1.offset=|v_thr1Thread3of3ForFork0_push_~#newTop~0#1.offset_21|, #valid=|v_#valid_35|, thr1Thread3of3ForFork0_push_#t~mem1#1=|v_thr1Thread3of3ForFork0_push_#t~mem1#1_9|, thr1Thread3of3ForFork0_push_~d#1=|v_thr1Thread3of3ForFork0_push_~d#1_3|, thr1Thread3of3ForFork0_push_#t~ret6#1=|v_thr1Thread3of3ForFork0_push_#t~ret6#1_3|, thr1Thread3of3ForFork0_push_#t~ret3#1=|v_thr1Thread3of3ForFork0_push_#t~ret3#1_3|, thr1Thread3of3ForFork0_push_#t~mem4#1=|v_thr1Thread3of3ForFork0_push_#t~mem4#1_3|, thr1Thread3of3ForFork0_push_#in~d#1=|v_thr1Thread3of3ForFork0_push_#in~d#1_3|, thr1Thread3of3ForFork0_push_#t~mem5#1=|v_thr1Thread3of3ForFork0_push_#t~mem5#1_3|} AuxVars[] AssignedVars[thr1Thread3of3ForFork0_push_~oldTop~0#1, thr1Thread3of3ForFork0_push_#t~mem2#1, thr1Thread3of3ForFork0_push_~#newTop~0#1.offset, #valid, thr1Thread3of3ForFork0_push_~#newTop~0#1.base, thr1Thread3of3ForFork0_push_#t~mem1#1, thr1Thread3of3ForFork0_push_~d#1, thr1Thread3of3ForFork0_push_#t~ret6#1, thr1Thread3of3ForFork0_push_#t~ret3#1, thr1Thread3of3ForFork0_push_#t~mem4#1, thr1Thread3of3ForFork0_push_#in~d#1, thr1Thread3of3ForFork0_push_#t~mem5#1][181], [130#true, 132#true, 77#L707-1true, 6#L713-4true, 134#true, Black: 138#(= ~next_alloc_idx~0 1), 155#(and (= (select |#length| |thr1Thread2of3ForFork0_push_~#newTop~0#1.base|) 4) (= |thr1Thread2of3ForFork0_push_~#newTop~0#1.offset| 0)), Black: 142#(= (select |#valid| |thr1Thread1of3ForFork0_push_~#newTop~0#1.base|) 1), 4#L707-1true, 156#true, Black: 150#(= (select |#valid| |thr1Thread2of3ForFork0_push_~#newTop~0#1.base|) 1), 128#true, 98#L719-7true]) [2024-12-02 07:47:15,252 INFO L294 olderBase$Statistics]: this new event has 64 ancestors and is cut-off event [2024-12-02 07:47:15,252 INFO L297 olderBase$Statistics]: existing Event has 64 ancestors and is cut-off event [2024-12-02 07:47:15,252 INFO L297 olderBase$Statistics]: existing Event has 45 ancestors and is cut-off event [2024-12-02 07:47:15,252 INFO L297 olderBase$Statistics]: existing Event has 64 ancestors and is cut-off event [2024-12-02 07:47:15,339 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([668] L701-4-->L713-4: Formula: (= |v_#valid_35| (store |v_#valid_36| |v_thr1Thread3of3ForFork0_push_~#newTop~0#1.base_25| 0)) InVars {thr1Thread3of3ForFork0_push_~#newTop~0#1.base=|v_thr1Thread3of3ForFork0_push_~#newTop~0#1.base_25|, #valid=|v_#valid_36|} OutVars{thr1Thread3of3ForFork0_push_~oldTop~0#1=|v_thr1Thread3of3ForFork0_push_~oldTop~0#1_3|, thr1Thread3of3ForFork0_push_#t~mem2#1=|v_thr1Thread3of3ForFork0_push_#t~mem2#1_5|, thr1Thread3of3ForFork0_push_~#newTop~0#1.offset=|v_thr1Thread3of3ForFork0_push_~#newTop~0#1.offset_21|, #valid=|v_#valid_35|, thr1Thread3of3ForFork0_push_#t~mem1#1=|v_thr1Thread3of3ForFork0_push_#t~mem1#1_9|, thr1Thread3of3ForFork0_push_~d#1=|v_thr1Thread3of3ForFork0_push_~d#1_3|, thr1Thread3of3ForFork0_push_#t~ret6#1=|v_thr1Thread3of3ForFork0_push_#t~ret6#1_3|, thr1Thread3of3ForFork0_push_#t~ret3#1=|v_thr1Thread3of3ForFork0_push_#t~ret3#1_3|, thr1Thread3of3ForFork0_push_#t~mem4#1=|v_thr1Thread3of3ForFork0_push_#t~mem4#1_3|, thr1Thread3of3ForFork0_push_#in~d#1=|v_thr1Thread3of3ForFork0_push_#in~d#1_3|, thr1Thread3of3ForFork0_push_#t~mem5#1=|v_thr1Thread3of3ForFork0_push_#t~mem5#1_3|} AuxVars[] AssignedVars[thr1Thread3of3ForFork0_push_~oldTop~0#1, thr1Thread3of3ForFork0_push_#t~mem2#1, thr1Thread3of3ForFork0_push_~#newTop~0#1.offset, #valid, thr1Thread3of3ForFork0_push_~#newTop~0#1.base, thr1Thread3of3ForFork0_push_#t~mem1#1, thr1Thread3of3ForFork0_push_~d#1, thr1Thread3of3ForFork0_push_#t~ret6#1, thr1Thread3of3ForFork0_push_#t~ret3#1, thr1Thread3of3ForFork0_push_#t~mem4#1, thr1Thread3of3ForFork0_push_#in~d#1, thr1Thread3of3ForFork0_push_#t~mem5#1][181], [130#true, 132#true, 77#L707-1true, 6#L713-4true, 134#true, Black: 138#(= ~next_alloc_idx~0 1), 155#(and (= (select |#length| |thr1Thread2of3ForFork0_push_~#newTop~0#1.base|) 4) (= |thr1Thread2of3ForFork0_push_~#newTop~0#1.offset| 0)), Black: 142#(= (select |#valid| |thr1Thread1of3ForFork0_push_~#newTop~0#1.base|) 1), 4#L707-1true, 156#true, 96#L719-4true, Black: 150#(= (select |#valid| |thr1Thread2of3ForFork0_push_~#newTop~0#1.base|) 1), 128#true]) [2024-12-02 07:47:15,339 INFO L294 olderBase$Statistics]: this new event has 65 ancestors and is cut-off event [2024-12-02 07:47:15,339 INFO L297 olderBase$Statistics]: existing Event has 65 ancestors and is cut-off event [2024-12-02 07:47:15,339 INFO L297 olderBase$Statistics]: existing Event has 46 ancestors and is cut-off event [2024-12-02 07:47:15,339 INFO L297 olderBase$Statistics]: existing Event has 65 ancestors and is cut-off event [2024-12-02 07:47:16,731 INFO L124 PetriNetUnfolderBase]: 144137/253825 cut-off events. [2024-12-02 07:47:16,731 INFO L125 PetriNetUnfolderBase]: For 94577/98783 co-relation queries the response was YES. [2024-12-02 07:47:17,142 INFO L83 FinitePrefix]: Finished finitePrefix Result has 551697 conditions, 253825 events. 144137/253825 cut-off events. For 94577/98783 co-relation queries the response was YES. Maximal size of possible extension queue 5241. Compared 2632371 event pairs, 49629 based on Foata normal form. 0/223560 useless extension candidates. Maximal degree in co-relation 551687. Up to 194684 conditions per place. [2024-12-02 07:47:17,951 INFO L140 encePairwiseOnDemand]: 128/136 looper letters, 145 selfloop transitions, 13 changer transitions 0/214 dead transitions. [2024-12-02 07:47:17,951 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 124 places, 214 transitions, 1055 flow [2024-12-02 07:47:17,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 07:47:17,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-12-02 07:47:17,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 498 transitions. [2024-12-02 07:47:17,953 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6102941176470589 [2024-12-02 07:47:17,953 INFO L175 Difference]: Start difference. First operand has 119 places, 128 transitions, 424 flow. Second operand 6 states and 498 transitions. [2024-12-02 07:47:17,953 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 124 places, 214 transitions, 1055 flow [2024-12-02 07:47:20,308 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 122 places, 214 transitions, 1031 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-12-02 07:47:20,309 INFO L231 Difference]: Finished difference. Result has 125 places, 137 transitions, 514 flow [2024-12-02 07:47:20,309 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=414, PETRI_DIFFERENCE_MINUEND_PLACES=117, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=128, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=118, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=514, PETRI_PLACES=125, PETRI_TRANSITIONS=137} [2024-12-02 07:47:20,310 INFO L279 CegarLoopForPetriNet]: 131 programPoint places, -6 predicate places. [2024-12-02 07:47:20,310 INFO L471 AbstractCegarLoop]: Abstraction has has 125 places, 137 transitions, 514 flow [2024-12-02 07:47:20,310 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 61.6) internal successors, (308), 5 states have internal predecessors, (308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:47:20,310 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 07:47:20,310 INFO L206 CegarLoopForPetriNet]: trace histogram [4, 3, 1, 1, 1, 1, 1] [2024-12-02 07:47:20,310 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-12-02 07:47:20,310 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 59 more)] === [2024-12-02 07:47:20,310 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:47:20,311 INFO L85 PathProgramCache]: Analyzing trace with hash 1968280920, now seen corresponding path program 1 times [2024-12-02 07:47:20,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:47:20,311 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1342841062] [2024-12-02 07:47:20,311 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:47:20,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:47:20,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 07:47:20,487 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 07:47:20,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 07:47:20,503 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-12-02 07:47:20,503 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-12-02 07:47:20,504 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (61 of 62 remaining) [2024-12-02 07:47:20,504 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (60 of 62 remaining) [2024-12-02 07:47:20,504 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (59 of 62 remaining) [2024-12-02 07:47:20,504 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (58 of 62 remaining) [2024-12-02 07:47:20,504 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (57 of 62 remaining) [2024-12-02 07:47:20,504 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (56 of 62 remaining) [2024-12-02 07:47:20,504 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (55 of 62 remaining) [2024-12-02 07:47:20,504 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (54 of 62 remaining) [2024-12-02 07:47:20,504 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (53 of 62 remaining) [2024-12-02 07:47:20,504 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONARRAY_INDEX (52 of 62 remaining) [2024-12-02 07:47:20,504 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (51 of 62 remaining) [2024-12-02 07:47:20,504 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (50 of 62 remaining) [2024-12-02 07:47:20,504 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONARRAY_INDEX (49 of 62 remaining) [2024-12-02 07:47:20,505 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONMEMORY_LEAK (48 of 62 remaining) [2024-12-02 07:47:20,505 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12REQUIRES_VIOLATIONMEMORY_DEREFERENCE (47 of 62 remaining) [2024-12-02 07:47:20,505 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (46 of 62 remaining) [2024-12-02 07:47:20,505 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (45 of 62 remaining) [2024-12-02 07:47:20,505 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (44 of 62 remaining) [2024-12-02 07:47:20,505 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (43 of 62 remaining) [2024-12-02 07:47:20,505 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (42 of 62 remaining) [2024-12-02 07:47:20,505 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (41 of 62 remaining) [2024-12-02 07:47:20,505 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (40 of 62 remaining) [2024-12-02 07:47:20,505 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (39 of 62 remaining) [2024-12-02 07:47:20,505 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (38 of 62 remaining) [2024-12-02 07:47:20,505 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (37 of 62 remaining) [2024-12-02 07:47:20,505 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONARRAY_INDEX (36 of 62 remaining) [2024-12-02 07:47:20,505 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (35 of 62 remaining) [2024-12-02 07:47:20,505 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (34 of 62 remaining) [2024-12-02 07:47:20,505 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONARRAY_INDEX (33 of 62 remaining) [2024-12-02 07:47:20,505 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONMEMORY_LEAK (32 of 62 remaining) [2024-12-02 07:47:20,506 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12REQUIRES_VIOLATIONMEMORY_DEREFERENCE (31 of 62 remaining) [2024-12-02 07:47:20,506 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (30 of 62 remaining) [2024-12-02 07:47:20,506 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (29 of 62 remaining) [2024-12-02 07:47:20,506 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (28 of 62 remaining) [2024-12-02 07:47:20,506 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (27 of 62 remaining) [2024-12-02 07:47:20,506 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (26 of 62 remaining) [2024-12-02 07:47:20,506 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (25 of 62 remaining) [2024-12-02 07:47:20,506 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (24 of 62 remaining) [2024-12-02 07:47:20,506 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (23 of 62 remaining) [2024-12-02 07:47:20,506 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (22 of 62 remaining) [2024-12-02 07:47:20,506 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONARRAY_INDEX (21 of 62 remaining) [2024-12-02 07:47:20,506 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (20 of 62 remaining) [2024-12-02 07:47:20,506 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (19 of 62 remaining) [2024-12-02 07:47:20,506 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONARRAY_INDEX (18 of 62 remaining) [2024-12-02 07:47:20,506 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONMEMORY_LEAK (17 of 62 remaining) [2024-12-02 07:47:20,506 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12REQUIRES_VIOLATIONMEMORY_DEREFERENCE (16 of 62 remaining) [2024-12-02 07:47:20,506 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (15 of 62 remaining) [2024-12-02 07:47:20,506 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (14 of 62 remaining) [2024-12-02 07:47:20,506 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 62 remaining) [2024-12-02 07:47:20,507 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 62 remaining) [2024-12-02 07:47:20,507 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 62 remaining) [2024-12-02 07:47:20,507 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 62 remaining) [2024-12-02 07:47:20,507 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 62 remaining) [2024-12-02 07:47:20,507 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 62 remaining) [2024-12-02 07:47:20,507 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 62 remaining) [2024-12-02 07:47:20,507 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONARRAY_INDEX (6 of 62 remaining) [2024-12-02 07:47:20,507 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 62 remaining) [2024-12-02 07:47:20,507 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 62 remaining) [2024-12-02 07:47:20,507 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONARRAY_INDEX (3 of 62 remaining) [2024-12-02 07:47:20,507 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONMEMORY_LEAK (2 of 62 remaining) [2024-12-02 07:47:20,507 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 62 remaining) [2024-12-02 07:47:20,507 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 62 remaining) [2024-12-02 07:47:20,507 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-12-02 07:47:20,507 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:47:20,508 WARN L246 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2024-12-02 07:47:20,508 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2024-12-02 07:47:20,555 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-12-02 07:47:20,558 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 172 places, 179 transitions, 386 flow [2024-12-02 07:47:20,577 INFO L124 PetriNetUnfolderBase]: 16/198 cut-off events. [2024-12-02 07:47:20,577 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2024-12-02 07:47:20,578 INFO L83 FinitePrefix]: Finished finitePrefix Result has 217 conditions, 198 events. 16/198 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 963 event pairs, 0 based on Foata normal form. 0/112 useless extension candidates. Maximal degree in co-relation 173. Up to 5 conditions per place. [2024-12-02 07:47:20,578 INFO L82 GeneralOperation]: Start removeDead. Operand has 172 places, 179 transitions, 386 flow [2024-12-02 07:47:20,580 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 172 places, 179 transitions, 386 flow [2024-12-02 07:47:20,581 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 07:47:20,582 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;@7354d0c8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 07:47:20,582 INFO L334 AbstractCegarLoop]: Starting to check reachability of 77 error locations. [2024-12-02 07:47:20,583 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-12-02 07:47:20,583 INFO L124 PetriNetUnfolderBase]: 0/4 cut-off events. [2024-12-02 07:47:20,583 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-12-02 07:47:20,583 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 07:47:20,583 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-12-02 07:47:20,583 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [thr1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 74 more)] === [2024-12-02 07:47:20,584 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:47:20,584 INFO L85 PathProgramCache]: Analyzing trace with hash 845956, now seen corresponding path program 1 times [2024-12-02 07:47:20,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:47:20,584 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [584920849] [2024-12-02 07:47:20,584 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:47:20,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:47:20,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:47:20,776 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:47:20,777 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:47:20,777 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [584920849] [2024-12-02 07:47:20,777 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [584920849] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:47:20,777 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:47:20,777 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 07:47:20,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1751459041] [2024-12-02 07:47:20,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:47:20,777 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-02 07:47:20,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:47:20,777 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-02 07:47:20,778 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 07:47:20,778 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 179 [2024-12-02 07:47:20,778 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 172 places, 179 transitions, 386 flow. Second operand has 2 states, 2 states have (on average 83.0) internal successors, (166), 2 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:47:20,778 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 07:47:20,778 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 179 [2024-12-02 07:47:20,778 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand