./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/goblint-regression/04-mutex_36-trylock_nr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 6497de01 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6879caac-2ba4-43c5-8c29-6939ef1dd530/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6879caac-2ba4-43c5-8c29-6939ef1dd530/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6879caac-2ba4-43c5-8c29-6939ef1dd530/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6879caac-2ba4-43c5-8c29-6939ef1dd530/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/goblint-regression/04-mutex_36-trylock_nr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6879caac-2ba4-43c5-8c29-6939ef1dd530/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6879caac-2ba4-43c5-8c29-6939ef1dd530/bin/uautomizer-verify-LYvppIcaGC --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 0bf2f5f336333cdf96c271b32cdeb9b70ee932e1c07acf27a63b4425ec902f3e --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-23 18:40:37,417 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-23 18:40:37,544 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6879caac-2ba4-43c5-8c29-6939ef1dd530/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-23 18:40:37,551 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-23 18:40:37,552 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-23 18:40:37,582 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-23 18:40:37,583 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-23 18:40:37,583 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-23 18:40:37,584 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-23 18:40:37,584 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-23 18:40:37,584 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-23 18:40:37,584 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-23 18:40:37,585 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-23 18:40:37,585 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-23 18:40:37,585 INFO L153 SettingsManager]: * Use SBE=true [2024-11-23 18:40:37,585 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-23 18:40:37,586 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-23 18:40:37,586 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-23 18:40:37,586 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-23 18:40:37,586 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-23 18:40:37,586 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-23 18:40:37,587 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-23 18:40:37,587 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-23 18:40:37,587 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-23 18:40:37,587 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-23 18:40:37,587 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-23 18:40:37,587 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-23 18:40:37,588 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-23 18:40:37,588 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-23 18:40:37,588 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-23 18:40:37,588 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 18:40:37,588 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 18:40:37,589 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 18:40:37,589 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 18:40:37,589 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-23 18:40:37,589 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 18:40:37,589 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 18:40:37,589 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 18:40:37,590 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 18:40:37,590 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-23 18:40:37,590 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-23 18:40:37,590 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-23 18:40:37,590 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-23 18:40:37,590 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-23 18:40:37,590 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-23 18:40:37,590 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-23 18:40:37,590 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-23 18:40:37,591 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_6879caac-2ba4-43c5-8c29-6939ef1dd530/bin/uautomizer-verify-LYvppIcaGC 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 -> 0bf2f5f336333cdf96c271b32cdeb9b70ee932e1c07acf27a63b4425ec902f3e [2024-11-23 18:40:37,922 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-23 18:40:37,933 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-23 18:40:37,936 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-23 18:40:37,937 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-23 18:40:37,938 INFO L274 PluginConnector]: CDTParser initialized [2024-11-23 18:40:37,939 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6879caac-2ba4-43c5-8c29-6939ef1dd530/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/goblint-regression/04-mutex_36-trylock_nr.i [2024-11-23 18:40:41,626 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6879caac-2ba4-43c5-8c29-6939ef1dd530/bin/uautomizer-verify-LYvppIcaGC/data/ccdf8aba9/898ef14a0e4a47a38c2f58d2af4d8352/FLAG65925c36e [2024-11-23 18:40:42,108 INFO L384 CDTParser]: Found 1 translation units. [2024-11-23 18:40:42,109 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6879caac-2ba4-43c5-8c29-6939ef1dd530/sv-benchmarks/c/goblint-regression/04-mutex_36-trylock_nr.i [2024-11-23 18:40:42,147 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6879caac-2ba4-43c5-8c29-6939ef1dd530/bin/uautomizer-verify-LYvppIcaGC/data/ccdf8aba9/898ef14a0e4a47a38c2f58d2af4d8352/FLAG65925c36e [2024-11-23 18:40:42,178 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6879caac-2ba4-43c5-8c29-6939ef1dd530/bin/uautomizer-verify-LYvppIcaGC/data/ccdf8aba9/898ef14a0e4a47a38c2f58d2af4d8352 [2024-11-23 18:40:42,182 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-23 18:40:42,184 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-23 18:40:42,188 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-23 18:40:42,188 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-23 18:40:42,200 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-23 18:40:42,201 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 06:40:42" (1/1) ... [2024-11-23 18:40:42,202 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2fcaf5fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:40:42, skipping insertion in model container [2024-11-23 18:40:42,205 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 06:40:42" (1/1) ... [2024-11-23 18:40:42,275 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-23 18:40:43,289 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 18:40:43,314 INFO L200 MainTranslator]: Completed pre-run [2024-11-23 18:40:43,411 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 18:40:43,649 INFO L204 MainTranslator]: Completed translation [2024-11-23 18:40:43,649 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:40:43 WrapperNode [2024-11-23 18:40:43,650 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-23 18:40:43,651 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-23 18:40:43,652 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-23 18:40:43,652 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-23 18:40:43,667 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:40:43" (1/1) ... [2024-11-23 18:40:43,714 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:40:43" (1/1) ... [2024-11-23 18:40:43,766 INFO L138 Inliner]: procedures = 525, calls = 30, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 105 [2024-11-23 18:40:43,767 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-23 18:40:43,768 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-23 18:40:43,768 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-23 18:40:43,768 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-23 18:40:43,782 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:40:43" (1/1) ... [2024-11-23 18:40:43,782 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:40:43" (1/1) ... [2024-11-23 18:40:43,791 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:40:43" (1/1) ... [2024-11-23 18:40:43,834 INFO L175 MemorySlicer]: Split 13 memory accesses to 9 slices as follows [1, 5, 1, 1, 1, 1, 1, 1, 1]. 38 percent of accesses are in the largest equivalence class. The 5 initializations are split as follows [0, 5, 0, 0, 0, 0, 0, 0, 0]. The 8 writes are split as follows [1, 0, 1, 1, 1, 1, 1, 1, 1]. [2024-11-23 18:40:43,837 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:40:43" (1/1) ... [2024-11-23 18:40:43,837 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:40:43" (1/1) ... [2024-11-23 18:40:43,867 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:40:43" (1/1) ... [2024-11-23 18:40:43,871 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:40:43" (1/1) ... [2024-11-23 18:40:43,881 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:40:43" (1/1) ... [2024-11-23 18:40:43,888 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:40:43" (1/1) ... [2024-11-23 18:40:43,890 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:40:43" (1/1) ... [2024-11-23 18:40:43,897 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-23 18:40:43,898 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-23 18:40:43,898 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-23 18:40:43,898 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-23 18:40:43,899 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:40:43" (1/1) ... [2024-11-23 18:40:43,906 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 18:40:43,939 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6879caac-2ba4-43c5-8c29-6939ef1dd530/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 18:40:43,963 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6879caac-2ba4-43c5-8c29-6939ef1dd530/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-23 18:40:43,965 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6879caac-2ba4-43c5-8c29-6939ef1dd530/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-23 18:40:43,989 INFO L130 BoogieDeclarations]: Found specification of procedure counter_thread [2024-11-23 18:40:43,990 INFO L138 BoogieDeclarations]: Found implementation of procedure counter_thread [2024-11-23 18:40:43,990 INFO L130 BoogieDeclarations]: Found specification of procedure monitor_thread [2024-11-23 18:40:43,990 INFO L138 BoogieDeclarations]: Found implementation of procedure monitor_thread [2024-11-23 18:40:43,990 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-23 18:40:43,990 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-23 18:40:43,990 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-23 18:40:43,990 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-23 18:40:43,990 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-23 18:40:43,990 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexTryLock [2024-11-23 18:40:43,990 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-23 18:40:43,990 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-23 18:40:43,991 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-23 18:40:43,991 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-23 18:40:43,991 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-23 18:40:43,991 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-23 18:40:43,992 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-23 18:40:43,992 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-23 18:40:43,993 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-11-23 18:40:43,993 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2024-11-23 18:40:43,993 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-23 18:40:43,994 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-23 18:40:43,994 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-23 18:40:43,994 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-23 18:40:43,994 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-23 18:40:43,995 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-23 18:40:43,995 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-23 18:40:43,995 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-23 18:40:43,995 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-11-23 18:40:43,997 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-23 18:40:44,457 INFO L234 CfgBuilder]: Building ICFG [2024-11-23 18:40:44,459 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-23 18:40:44,941 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-23 18:40:44,941 INFO L283 CfgBuilder]: Performing block encoding [2024-11-23 18:40:45,176 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-23 18:40:45,176 INFO L312 CfgBuilder]: Removed 11 assume(true) statements. [2024-11-23 18:40:45,177 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 06:40:45 BoogieIcfgContainer [2024-11-23 18:40:45,177 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-23 18:40:45,183 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-23 18:40:45,183 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-23 18:40:45,194 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-23 18:40:45,195 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 06:40:42" (1/3) ... [2024-11-23 18:40:45,195 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5095b611 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 06:40:45, skipping insertion in model container [2024-11-23 18:40:45,196 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:40:43" (2/3) ... [2024-11-23 18:40:45,196 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5095b611 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 06:40:45, skipping insertion in model container [2024-11-23 18:40:45,196 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 06:40:45" (3/3) ... [2024-11-23 18:40:45,197 INFO L128 eAbstractionObserver]: Analyzing ICFG 04-mutex_36-trylock_nr.i [2024-11-23 18:40:45,221 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-23 18:40:45,225 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 04-mutex_36-trylock_nr.i that has 3 procedures, 102 locations, 1 initial locations, 11 loop locations, and 17 error locations. [2024-11-23 18:40:45,225 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-23 18:40:45,396 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-23 18:40:45,448 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 108 places, 140 transitions, 294 flow [2024-11-23 18:40:45,539 INFO L124 PetriNetUnfolderBase]: 39/138 cut-off events. [2024-11-23 18:40:45,543 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-23 18:40:45,548 INFO L83 FinitePrefix]: Finished finitePrefix Result has 147 conditions, 138 events. 39/138 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 392 event pairs, 0 based on Foata normal form. 0/82 useless extension candidates. Maximal degree in co-relation 105. Up to 5 conditions per place. [2024-11-23 18:40:45,549 INFO L82 GeneralOperation]: Start removeDead. Operand has 108 places, 140 transitions, 294 flow [2024-11-23 18:40:45,557 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 105 places, 137 transitions, 286 flow [2024-11-23 18:40:45,567 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-23 18:40:45,584 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;@7831f16a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-23 18:40:45,584 INFO L334 AbstractCegarLoop]: Starting to check reachability of 27 error locations. [2024-11-23 18:40:45,587 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-23 18:40:45,587 INFO L124 PetriNetUnfolderBase]: 0/3 cut-off events. [2024-11-23 18:40:45,587 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-23 18:40:45,587 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-23 18:40:45,588 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-11-23 18:40:45,589 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [monitor_threadErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, monitor_threadErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, monitor_threadErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2024-11-23 18:40:45,598 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:40:45,598 INFO L85 PathProgramCache]: Analyzing trace with hash 594160, now seen corresponding path program 1 times [2024-11-23 18:40:45,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:40:45,607 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2075088242] [2024-11-23 18:40:45,608 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:40:45,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:40:45,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:40:46,068 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 18:40:46,071 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:40:46,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2075088242] [2024-11-23 18:40:46,074 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2075088242] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:40:46,074 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:40:46,075 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-23 18:40:46,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1841802227] [2024-11-23 18:40:46,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:40:46,086 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 18:40:46,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:40:46,123 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 18:40:46,124 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 18:40:46,207 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 140 [2024-11-23 18:40:46,211 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 137 transitions, 286 flow. Second operand has 3 states, 3 states have (on average 73.0) internal successors, (219), 3 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 18:40:46,213 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 18:40:46,214 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 140 [2024-11-23 18:40:46,215 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 18:40:47,293 INFO L124 PetriNetUnfolderBase]: 1073/3046 cut-off events. [2024-11-23 18:40:47,294 INFO L125 PetriNetUnfolderBase]: For 51/51 co-relation queries the response was YES. [2024-11-23 18:40:47,312 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4747 conditions, 3046 events. 1073/3046 cut-off events. For 51/51 co-relation queries the response was YES. Maximal size of possible extension queue 185. Compared 26181 event pairs, 393 based on Foata normal form. 1045/3132 useless extension candidates. Maximal degree in co-relation 4538. Up to 885 conditions per place. [2024-11-23 18:40:47,334 INFO L140 encePairwiseOnDemand]: 112/140 looper letters, 64 selfloop transitions, 9 changer transitions 5/136 dead transitions. [2024-11-23 18:40:47,335 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 136 transitions, 438 flow [2024-11-23 18:40:47,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 18:40:47,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-23 18:40:47,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 326 transitions. [2024-11-23 18:40:47,361 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7761904761904762 [2024-11-23 18:40:47,364 INFO L175 Difference]: Start difference. First operand has 105 places, 137 transitions, 286 flow. Second operand 3 states and 326 transitions. [2024-11-23 18:40:47,365 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 136 transitions, 438 flow [2024-11-23 18:40:47,373 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 136 transitions, 426 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-23 18:40:47,383 INFO L231 Difference]: Finished difference. Result has 95 places, 104 transitions, 253 flow [2024-11-23 18:40:47,387 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=208, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=93, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=253, PETRI_PLACES=95, PETRI_TRANSITIONS=104} [2024-11-23 18:40:47,392 INFO L279 CegarLoopForPetriNet]: 105 programPoint places, -10 predicate places. [2024-11-23 18:40:47,392 INFO L471 AbstractCegarLoop]: Abstraction has has 95 places, 104 transitions, 253 flow [2024-11-23 18:40:47,392 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 73.0) internal successors, (219), 3 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 18:40:47,392 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-23 18:40:47,393 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:40:47,396 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-23 18:40:47,396 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [monitor_threadErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, monitor_threadErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, monitor_threadErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2024-11-23 18:40:47,397 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:40:47,397 INFO L85 PathProgramCache]: Analyzing trace with hash -617782949, now seen corresponding path program 1 times [2024-11-23 18:40:47,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:40:47,398 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1326440375] [2024-11-23 18:40:47,398 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:40:47,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:40:47,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:40:47,792 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 18:40:47,792 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:40:47,793 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1326440375] [2024-11-23 18:40:47,793 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1326440375] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:40:47,793 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:40:47,793 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-23 18:40:47,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1578908810] [2024-11-23 18:40:47,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:40:47,797 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 18:40:47,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:40:47,798 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 18:40:47,798 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 18:40:47,886 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 140 [2024-11-23 18:40:47,886 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 104 transitions, 253 flow. Second operand has 3 states, 3 states have (on average 73.0) internal successors, (219), 3 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 18:40:47,887 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 18:40:47,887 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 140 [2024-11-23 18:40:47,887 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 18:40:48,521 INFO L124 PetriNetUnfolderBase]: 1160/2812 cut-off events. [2024-11-23 18:40:48,521 INFO L125 PetriNetUnfolderBase]: For 342/342 co-relation queries the response was YES. [2024-11-23 18:40:48,530 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5155 conditions, 2812 events. 1160/2812 cut-off events. For 342/342 co-relation queries the response was YES. Maximal size of possible extension queue 160. Compared 21791 event pairs, 840 based on Foata normal form. 14/2137 useless extension candidates. Maximal degree in co-relation 2039. Up to 1657 conditions per place. [2024-11-23 18:40:48,547 INFO L140 encePairwiseOnDemand]: 136/140 looper letters, 57 selfloop transitions, 4 changer transitions 0/117 dead transitions. [2024-11-23 18:40:48,547 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 117 transitions, 405 flow [2024-11-23 18:40:48,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 18:40:48,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-23 18:40:48,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 268 transitions. [2024-11-23 18:40:48,551 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.638095238095238 [2024-11-23 18:40:48,551 INFO L175 Difference]: Start difference. First operand has 95 places, 104 transitions, 253 flow. Second operand 3 states and 268 transitions. [2024-11-23 18:40:48,551 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 117 transitions, 405 flow [2024-11-23 18:40:48,557 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 117 transitions, 396 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-23 18:40:48,562 INFO L231 Difference]: Finished difference. Result has 94 places, 106 transitions, 270 flow [2024-11-23 18:40:48,563 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=244, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=104, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=100, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=270, PETRI_PLACES=94, PETRI_TRANSITIONS=106} [2024-11-23 18:40:48,564 INFO L279 CegarLoopForPetriNet]: 105 programPoint places, -11 predicate places. [2024-11-23 18:40:48,564 INFO L471 AbstractCegarLoop]: Abstraction has has 94 places, 106 transitions, 270 flow [2024-11-23 18:40:48,565 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 73.0) internal successors, (219), 3 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 18:40:48,565 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-23 18:40:48,565 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:40:48,566 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-23 18:40:48,566 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [monitor_threadErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, monitor_threadErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, monitor_threadErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2024-11-23 18:40:48,566 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:40:48,566 INFO L85 PathProgramCache]: Analyzing trace with hash -617782950, now seen corresponding path program 1 times [2024-11-23 18:40:48,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:40:48,567 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1891923713] [2024-11-23 18:40:48,567 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:40:48,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:40:48,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:40:48,776 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 18:40:48,777 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:40:48,777 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1891923713] [2024-11-23 18:40:48,777 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1891923713] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:40:48,777 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:40:48,777 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-23 18:40:48,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1061229166] [2024-11-23 18:40:48,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:40:48,778 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 18:40:48,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:40:48,778 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 18:40:48,778 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 18:40:48,857 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 140 [2024-11-23 18:40:48,858 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 106 transitions, 270 flow. Second operand has 3 states, 3 states have (on average 72.0) internal successors, (216), 3 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 18:40:48,858 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 18:40:48,858 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 140 [2024-11-23 18:40:48,858 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 18:40:49,413 INFO L124 PetriNetUnfolderBase]: 1175/2817 cut-off events. [2024-11-23 18:40:49,413 INFO L125 PetriNetUnfolderBase]: For 466/466 co-relation queries the response was YES. [2024-11-23 18:40:49,419 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4992 conditions, 2817 events. 1175/2817 cut-off events. For 466/466 co-relation queries the response was YES. Maximal size of possible extension queue 160. Compared 21717 event pairs, 843 based on Foata normal form. 0/2138 useless extension candidates. Maximal degree in co-relation 4821. Up to 1653 conditions per place. [2024-11-23 18:40:49,435 INFO L140 encePairwiseOnDemand]: 138/140 looper letters, 57 selfloop transitions, 2 changer transitions 2/116 dead transitions. [2024-11-23 18:40:49,435 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 116 transitions, 412 flow [2024-11-23 18:40:49,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 18:40:49,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-23 18:40:49,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 265 transitions. [2024-11-23 18:40:49,438 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6309523809523809 [2024-11-23 18:40:49,439 INFO L175 Difference]: Start difference. First operand has 94 places, 106 transitions, 270 flow. Second operand 3 states and 265 transitions. [2024-11-23 18:40:49,439 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 116 transitions, 412 flow [2024-11-23 18:40:49,448 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 116 transitions, 404 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-11-23 18:40:49,453 INFO L231 Difference]: Finished difference. Result has 94 places, 105 transitions, 264 flow [2024-11-23 18:40:49,453 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=260, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=105, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=103, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=264, PETRI_PLACES=94, PETRI_TRANSITIONS=105} [2024-11-23 18:40:49,454 INFO L279 CegarLoopForPetriNet]: 105 programPoint places, -11 predicate places. [2024-11-23 18:40:49,454 INFO L471 AbstractCegarLoop]: Abstraction has has 94 places, 105 transitions, 264 flow [2024-11-23 18:40:49,455 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 72.0) internal successors, (216), 3 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 18:40:49,455 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-23 18:40:49,455 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:40:49,455 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-23 18:40:49,456 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting counter_threadErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [monitor_threadErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, monitor_threadErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, monitor_threadErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2024-11-23 18:40:49,457 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:40:49,457 INFO L85 PathProgramCache]: Analyzing trace with hash 1936725103, now seen corresponding path program 1 times [2024-11-23 18:40:49,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:40:49,457 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1460232864] [2024-11-23 18:40:49,457 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:40:49,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:40:49,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:40:49,682 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 18:40:49,682 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:40:49,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1460232864] [2024-11-23 18:40:49,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1460232864] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:40:49,682 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:40:49,682 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-23 18:40:49,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1142497415] [2024-11-23 18:40:49,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:40:49,683 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 18:40:49,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:40:49,684 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 18:40:49,684 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 18:40:49,696 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 140 [2024-11-23 18:40:49,697 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 105 transitions, 264 flow. Second operand has 4 states, 4 states have (on average 71.5) internal successors, (286), 4 states have internal predecessors, (286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 18:40:49,697 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 18:40:49,697 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 140 [2024-11-23 18:40:49,697 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 18:40:50,607 INFO L124 PetriNetUnfolderBase]: 1535/3277 cut-off events. [2024-11-23 18:40:50,607 INFO L125 PetriNetUnfolderBase]: For 585/585 co-relation queries the response was YES. [2024-11-23 18:40:50,617 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6235 conditions, 3277 events. 1535/3277 cut-off events. For 585/585 co-relation queries the response was YES. Maximal size of possible extension queue 157. Compared 23696 event pairs, 540 based on Foata normal form. 0/2681 useless extension candidates. Maximal degree in co-relation 6075. Up to 1148 conditions per place. [2024-11-23 18:40:50,635 INFO L140 encePairwiseOnDemand]: 135/140 looper letters, 119 selfloop transitions, 6 changer transitions 0/173 dead transitions. [2024-11-23 18:40:50,635 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 173 transitions, 707 flow [2024-11-23 18:40:50,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 18:40:50,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-23 18:40:50,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 454 transitions. [2024-11-23 18:40:50,638 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6485714285714286 [2024-11-23 18:40:50,638 INFO L175 Difference]: Start difference. First operand has 94 places, 105 transitions, 264 flow. Second operand 5 states and 454 transitions. [2024-11-23 18:40:50,638 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 173 transitions, 707 flow [2024-11-23 18:40:50,649 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 173 transitions, 702 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-23 18:40:50,653 INFO L231 Difference]: Finished difference. Result has 91 places, 98 transitions, 252 flow [2024-11-23 18:40:50,654 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=236, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=96, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=252, PETRI_PLACES=91, PETRI_TRANSITIONS=98} [2024-11-23 18:40:50,654 INFO L279 CegarLoopForPetriNet]: 105 programPoint places, -14 predicate places. [2024-11-23 18:40:50,654 INFO L471 AbstractCegarLoop]: Abstraction has has 91 places, 98 transitions, 252 flow [2024-11-23 18:40:50,656 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 71.5) internal successors, (286), 4 states have internal predecessors, (286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 18:40:50,656 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-23 18:40:50,656 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:40:50,658 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-23 18:40:50,659 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [monitor_threadErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, monitor_threadErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, monitor_threadErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2024-11-23 18:40:50,659 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:40:50,660 INFO L85 PathProgramCache]: Analyzing trace with hash 458651939, now seen corresponding path program 1 times [2024-11-23 18:40:50,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:40:50,660 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1107262245] [2024-11-23 18:40:50,660 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:40:50,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:40:50,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:40:50,885 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 18:40:50,885 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:40:50,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1107262245] [2024-11-23 18:40:50,885 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1107262245] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:40:50,885 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:40:50,885 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-23 18:40:50,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [207903707] [2024-11-23 18:40:50,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:40:50,886 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 18:40:50,886 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:40:50,886 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 18:40:50,886 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 18:40:50,957 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 140 [2024-11-23 18:40:50,957 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 98 transitions, 252 flow. Second operand has 3 states, 3 states have (on average 73.0) internal successors, (219), 3 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 18:40:50,957 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 18:40:50,957 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 140 [2024-11-23 18:40:50,958 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 18:40:51,830 INFO L124 PetriNetUnfolderBase]: 2527/5332 cut-off events. [2024-11-23 18:40:51,831 INFO L125 PetriNetUnfolderBase]: For 812/835 co-relation queries the response was YES. [2024-11-23 18:40:51,845 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10224 conditions, 5332 events. 2527/5332 cut-off events. For 812/835 co-relation queries the response was YES. Maximal size of possible extension queue 282. Compared 42049 event pairs, 1263 based on Foata normal form. 22/4350 useless extension candidates. Maximal degree in co-relation 9759. Up to 2449 conditions per place. [2024-11-23 18:40:51,887 INFO L140 encePairwiseOnDemand]: 134/140 looper letters, 72 selfloop transitions, 6 changer transitions 0/126 dead transitions. [2024-11-23 18:40:51,887 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 126 transitions, 482 flow [2024-11-23 18:40:51,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 18:40:51,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-23 18:40:51,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 278 transitions. [2024-11-23 18:40:51,889 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6619047619047619 [2024-11-23 18:40:51,889 INFO L175 Difference]: Start difference. First operand has 91 places, 98 transitions, 252 flow. Second operand 3 states and 278 transitions. [2024-11-23 18:40:51,889 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 126 transitions, 482 flow [2024-11-23 18:40:51,901 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 126 transitions, 474 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-23 18:40:51,905 INFO L231 Difference]: Finished difference. Result has 94 places, 102 transitions, 298 flow [2024-11-23 18:40:51,905 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=248, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=98, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=298, PETRI_PLACES=94, PETRI_TRANSITIONS=102} [2024-11-23 18:40:51,906 INFO L279 CegarLoopForPetriNet]: 105 programPoint places, -11 predicate places. [2024-11-23 18:40:51,906 INFO L471 AbstractCegarLoop]: Abstraction has has 94 places, 102 transitions, 298 flow [2024-11-23 18:40:51,906 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 73.0) internal successors, (219), 3 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 18:40:51,906 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-23 18:40:51,906 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:40:51,907 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-23 18:40:51,907 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [monitor_threadErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, monitor_threadErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, monitor_threadErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2024-11-23 18:40:51,907 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:40:51,907 INFO L85 PathProgramCache]: Analyzing trace with hash 458651938, now seen corresponding path program 1 times [2024-11-23 18:40:51,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:40:51,908 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [463917224] [2024-11-23 18:40:51,908 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:40:51,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:40:51,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:40:52,006 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 18:40:52,007 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:40:52,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [463917224] [2024-11-23 18:40:52,007 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [463917224] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:40:52,007 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:40:52,007 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-23 18:40:52,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [468292994] [2024-11-23 18:40:52,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:40:52,008 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 18:40:52,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:40:52,008 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 18:40:52,008 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 18:40:52,056 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 140 [2024-11-23 18:40:52,056 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 102 transitions, 298 flow. Second operand has 3 states, 3 states have (on average 73.0) internal successors, (219), 3 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 18:40:52,056 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 18:40:52,056 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 140 [2024-11-23 18:40:52,056 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 18:40:52,837 INFO L124 PetriNetUnfolderBase]: 2481/5267 cut-off events. [2024-11-23 18:40:52,838 INFO L125 PetriNetUnfolderBase]: For 2016/2062 co-relation queries the response was YES. [2024-11-23 18:40:52,851 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11044 conditions, 5267 events. 2481/5267 cut-off events. For 2016/2062 co-relation queries the response was YES. Maximal size of possible extension queue 284. Compared 41693 event pairs, 1179 based on Foata normal form. 325/4523 useless extension candidates. Maximal degree in co-relation 10418. Up to 2198 conditions per place. [2024-11-23 18:40:52,873 INFO L140 encePairwiseOnDemand]: 138/140 looper letters, 78 selfloop transitions, 2 changer transitions 0/128 dead transitions. [2024-11-23 18:40:52,874 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 128 transitions, 530 flow [2024-11-23 18:40:52,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 18:40:52,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-23 18:40:52,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 276 transitions. [2024-11-23 18:40:52,876 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6571428571428571 [2024-11-23 18:40:52,876 INFO L175 Difference]: Start difference. First operand has 94 places, 102 transitions, 298 flow. Second operand 3 states and 276 transitions. [2024-11-23 18:40:52,876 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 128 transitions, 530 flow [2024-11-23 18:40:52,917 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 128 transitions, 510 flow, removed 4 selfloop flow, removed 2 redundant places. [2024-11-23 18:40:52,919 INFO L231 Difference]: Finished difference. Result has 93 places, 101 transitions, 280 flow [2024-11-23 18:40:52,920 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=276, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=99, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=280, PETRI_PLACES=93, PETRI_TRANSITIONS=101} [2024-11-23 18:40:52,921 INFO L279 CegarLoopForPetriNet]: 105 programPoint places, -12 predicate places. [2024-11-23 18:40:52,922 INFO L471 AbstractCegarLoop]: Abstraction has has 93 places, 101 transitions, 280 flow [2024-11-23 18:40:52,923 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 73.0) internal successors, (219), 3 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 18:40:52,923 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-23 18:40:52,923 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:40:52,923 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-23 18:40:52,924 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting counter_threadErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [monitor_threadErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, monitor_threadErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, monitor_threadErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2024-11-23 18:40:52,924 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:40:52,924 INFO L85 PathProgramCache]: Analyzing trace with hash -1569086759, now seen corresponding path program 1 times [2024-11-23 18:40:52,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:40:52,925 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [587761072] [2024-11-23 18:40:52,925 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:40:52,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:40:52,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:40:53,057 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 18:40:53,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:40:53,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [587761072] [2024-11-23 18:40:53,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [587761072] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:40:53,057 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:40:53,057 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 18:40:53,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580112651] [2024-11-23 18:40:53,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:40:53,058 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 18:40:53,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:40:53,058 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 18:40:53,058 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 18:40:53,059 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 140 [2024-11-23 18:40:53,059 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 101 transitions, 280 flow. Second operand has 3 states, 3 states have (on average 76.33333333333333) internal successors, (229), 3 states have internal predecessors, (229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 18:40:53,060 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 18:40:53,060 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 140 [2024-11-23 18:40:53,061 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 18:40:53,733 INFO L124 PetriNetUnfolderBase]: 1573/3813 cut-off events. [2024-11-23 18:40:53,733 INFO L125 PetriNetUnfolderBase]: For 1812/1812 co-relation queries the response was YES. [2024-11-23 18:40:53,744 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7690 conditions, 3813 events. 1573/3813 cut-off events. For 1812/1812 co-relation queries the response was YES. Maximal size of possible extension queue 188. Compared 30475 event pairs, 1222 based on Foata normal form. 0/2994 useless extension candidates. Maximal degree in co-relation 7441. Up to 2328 conditions per place. [2024-11-23 18:40:53,763 INFO L140 encePairwiseOnDemand]: 137/140 looper letters, 72 selfloop transitions, 2 changer transitions 0/124 dead transitions. [2024-11-23 18:40:53,763 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 124 transitions, 500 flow [2024-11-23 18:40:53,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 18:40:53,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-23 18:40:53,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 276 transitions. [2024-11-23 18:40:53,766 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6571428571428571 [2024-11-23 18:40:53,766 INFO L175 Difference]: Start difference. First operand has 93 places, 101 transitions, 280 flow. Second operand 3 states and 276 transitions. [2024-11-23 18:40:53,766 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 124 transitions, 500 flow [2024-11-23 18:40:53,774 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 124 transitions, 496 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-23 18:40:53,777 INFO L231 Difference]: Finished difference. Result has 95 places, 102 transitions, 290 flow [2024-11-23 18:40:53,777 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=278, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=99, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=290, PETRI_PLACES=95, PETRI_TRANSITIONS=102} [2024-11-23 18:40:53,778 INFO L279 CegarLoopForPetriNet]: 105 programPoint places, -10 predicate places. [2024-11-23 18:40:53,778 INFO L471 AbstractCegarLoop]: Abstraction has has 95 places, 102 transitions, 290 flow [2024-11-23 18:40:53,778 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 76.33333333333333) internal successors, (229), 3 states have internal predecessors, (229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 18:40:53,778 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-23 18:40:53,779 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:40:53,779 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-23 18:40:53,779 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting monitor_threadErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [monitor_threadErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, monitor_threadErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, monitor_threadErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2024-11-23 18:40:53,780 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:40:53,780 INFO L85 PathProgramCache]: Analyzing trace with hash 882480271, now seen corresponding path program 1 times [2024-11-23 18:40:53,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:40:53,780 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1396885895] [2024-11-23 18:40:53,780 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:40:53,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:40:53,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:40:53,911 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 18:40:53,911 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:40:53,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1396885895] [2024-11-23 18:40:53,912 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1396885895] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:40:53,912 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:40:53,912 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-23 18:40:53,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [452843311] [2024-11-23 18:40:53,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:40:53,912 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 18:40:53,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:40:53,913 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 18:40:53,913 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 18:40:53,973 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 140 [2024-11-23 18:40:53,974 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 102 transitions, 290 flow. Second operand has 3 states, 3 states have (on average 74.33333333333333) internal successors, (223), 3 states have internal predecessors, (223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 18:40:53,974 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 18:40:53,974 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 140 [2024-11-23 18:40:53,974 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 18:40:54,626 INFO L124 PetriNetUnfolderBase]: 1742/4072 cut-off events. [2024-11-23 18:40:54,626 INFO L125 PetriNetUnfolderBase]: For 1307/1353 co-relation queries the response was YES. [2024-11-23 18:40:54,635 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8591 conditions, 4072 events. 1742/4072 cut-off events. For 1307/1353 co-relation queries the response was YES. Maximal size of possible extension queue 186. Compared 32260 event pairs, 1240 based on Foata normal form. 46/3321 useless extension candidates. Maximal degree in co-relation 8277. Up to 2269 conditions per place. [2024-11-23 18:40:54,649 INFO L140 encePairwiseOnDemand]: 138/140 looper letters, 70 selfloop transitions, 3 changer transitions 0/121 dead transitions. [2024-11-23 18:40:54,651 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 121 transitions, 503 flow [2024-11-23 18:40:54,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 18:40:54,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-23 18:40:54,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 267 transitions. [2024-11-23 18:40:54,653 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6357142857142857 [2024-11-23 18:40:54,653 INFO L175 Difference]: Start difference. First operand has 95 places, 102 transitions, 290 flow. Second operand 3 states and 267 transitions. [2024-11-23 18:40:54,653 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 121 transitions, 503 flow [2024-11-23 18:40:54,658 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 121 transitions, 496 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-11-23 18:40:54,660 INFO L231 Difference]: Finished difference. Result has 95 places, 101 transitions, 290 flow [2024-11-23 18:40:54,660 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=284, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=98, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=290, PETRI_PLACES=95, PETRI_TRANSITIONS=101} [2024-11-23 18:40:54,661 INFO L279 CegarLoopForPetriNet]: 105 programPoint places, -10 predicate places. [2024-11-23 18:40:54,661 INFO L471 AbstractCegarLoop]: Abstraction has has 95 places, 101 transitions, 290 flow [2024-11-23 18:40:54,661 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 74.33333333333333) internal successors, (223), 3 states have internal predecessors, (223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 18:40:54,661 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-23 18:40:54,661 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:40:54,661 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-23 18:40:54,661 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting monitor_threadErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [monitor_threadErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, monitor_threadErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, monitor_threadErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2024-11-23 18:40:54,662 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:40:54,662 INFO L85 PathProgramCache]: Analyzing trace with hash 882480272, now seen corresponding path program 1 times [2024-11-23 18:40:54,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:40:54,662 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1230716957] [2024-11-23 18:40:54,662 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:40:54,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:40:54,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:40:54,821 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 18:40:54,821 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:40:54,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1230716957] [2024-11-23 18:40:54,821 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1230716957] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:40:54,822 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:40:54,822 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-23 18:40:54,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [15635132] [2024-11-23 18:40:54,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:40:54,822 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 18:40:54,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:40:54,823 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 18:40:54,823 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 18:40:54,896 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 140 [2024-11-23 18:40:54,897 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 101 transitions, 290 flow. Second operand has 3 states, 3 states have (on average 75.33333333333333) internal successors, (226), 3 states have internal predecessors, (226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 18:40:54,897 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 18:40:54,897 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 140 [2024-11-23 18:40:54,897 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 18:40:55,457 INFO L124 PetriNetUnfolderBase]: 1604/3862 cut-off events. [2024-11-23 18:40:55,458 INFO L125 PetriNetUnfolderBase]: For 1317/1359 co-relation queries the response was YES. [2024-11-23 18:40:55,466 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8059 conditions, 3862 events. 1604/3862 cut-off events. For 1317/1359 co-relation queries the response was YES. Maximal size of possible extension queue 182. Compared 30922 event pairs, 1250 based on Foata normal form. 119/3204 useless extension candidates. Maximal degree in co-relation 7788. Up to 2364 conditions per place. [2024-11-23 18:40:55,482 INFO L140 encePairwiseOnDemand]: 135/140 looper letters, 66 selfloop transitions, 7 changer transitions 0/121 dead transitions. [2024-11-23 18:40:55,482 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 121 transitions, 502 flow [2024-11-23 18:40:55,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 18:40:55,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-23 18:40:55,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 270 transitions. [2024-11-23 18:40:55,485 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6428571428571429 [2024-11-23 18:40:55,485 INFO L175 Difference]: Start difference. First operand has 95 places, 101 transitions, 290 flow. Second operand 3 states and 270 transitions. [2024-11-23 18:40:55,485 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 121 transitions, 502 flow [2024-11-23 18:40:55,492 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 121 transitions, 499 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-23 18:40:55,494 INFO L231 Difference]: Finished difference. Result has 97 places, 105 transitions, 341 flow [2024-11-23 18:40:55,494 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=287, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=94, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=341, PETRI_PLACES=97, PETRI_TRANSITIONS=105} [2024-11-23 18:40:55,495 INFO L279 CegarLoopForPetriNet]: 105 programPoint places, -8 predicate places. [2024-11-23 18:40:55,495 INFO L471 AbstractCegarLoop]: Abstraction has has 97 places, 105 transitions, 341 flow [2024-11-23 18:40:55,496 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 75.33333333333333) internal successors, (226), 3 states have internal predecessors, (226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 18:40:55,496 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-23 18:40:55,496 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:40:55,496 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-23 18:40:55,496 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting counter_threadErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [monitor_threadErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, monitor_threadErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, monitor_threadErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2024-11-23 18:40:55,497 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:40:55,497 INFO L85 PathProgramCache]: Analyzing trace with hash 925654003, now seen corresponding path program 1 times [2024-11-23 18:40:55,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:40:55,497 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [758054416] [2024-11-23 18:40:55,497 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:40:55,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:40:55,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:40:55,614 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 18:40:55,614 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:40:55,615 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [758054416] [2024-11-23 18:40:55,615 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [758054416] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 18:40:55,615 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1888414764] [2024-11-23 18:40:55,615 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:40:55,615 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 18:40:55,616 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6879caac-2ba4-43c5-8c29-6939ef1dd530/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 18:40:55,620 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6879caac-2ba4-43c5-8c29-6939ef1dd530/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 18:40:55,623 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6879caac-2ba4-43c5-8c29-6939ef1dd530/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-23 18:40:55,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:40:55,781 INFO L256 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-23 18:40:55,788 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 18:40:55,830 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 18:40:55,831 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 18:40:55,866 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 18:40:55,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1888414764] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 18:40:55,867 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 18:40:55,867 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2024-11-23 18:40:55,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1129068638] [2024-11-23 18:40:55,869 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 18:40:55,870 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-23 18:40:55,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:40:55,870 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-23 18:40:55,870 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-23 18:40:55,871 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 140 [2024-11-23 18:40:55,872 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 105 transitions, 341 flow. Second operand has 7 states, 7 states have (on average 74.71428571428571) internal successors, (523), 7 states have internal predecessors, (523), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 18:40:55,872 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 18:40:55,872 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 140 [2024-11-23 18:40:55,872 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 18:40:56,686 INFO L124 PetriNetUnfolderBase]: 1771/4140 cut-off events. [2024-11-23 18:40:56,686 INFO L125 PetriNetUnfolderBase]: For 1999/1999 co-relation queries the response was YES. [2024-11-23 18:40:56,701 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9171 conditions, 4140 events. 1771/4140 cut-off events. For 1999/1999 co-relation queries the response was YES. Maximal size of possible extension queue 163. Compared 32421 event pairs, 1225 based on Foata normal form. 0/3382 useless extension candidates. Maximal degree in co-relation 8859. Up to 2333 conditions per place. [2024-11-23 18:40:56,719 INFO L140 encePairwiseOnDemand]: 137/140 looper letters, 146 selfloop transitions, 5 changer transitions 0/200 dead transitions. [2024-11-23 18:40:56,719 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 200 transitions, 1007 flow [2024-11-23 18:40:56,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 18:40:56,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-23 18:40:56,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 554 transitions. [2024-11-23 18:40:56,723 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6595238095238095 [2024-11-23 18:40:56,723 INFO L175 Difference]: Start difference. First operand has 97 places, 105 transitions, 341 flow. Second operand 6 states and 554 transitions. [2024-11-23 18:40:56,723 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 200 transitions, 1007 flow [2024-11-23 18:40:56,736 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 200 transitions, 972 flow, removed 8 selfloop flow, removed 1 redundant places. [2024-11-23 18:40:56,740 INFO L231 Difference]: Finished difference. Result has 104 places, 108 transitions, 362 flow [2024-11-23 18:40:56,741 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=326, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=105, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=102, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=362, PETRI_PLACES=104, PETRI_TRANSITIONS=108} [2024-11-23 18:40:56,742 INFO L279 CegarLoopForPetriNet]: 105 programPoint places, -1 predicate places. [2024-11-23 18:40:56,743 INFO L471 AbstractCegarLoop]: Abstraction has has 104 places, 108 transitions, 362 flow [2024-11-23 18:40:56,744 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 74.71428571428571) internal successors, (523), 7 states have internal predecessors, (523), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 18:40:56,744 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-23 18:40:56,744 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:40:56,758 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6879caac-2ba4-43c5-8c29-6939ef1dd530/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-23 18:40:56,948 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6879caac-2ba4-43c5-8c29-6939ef1dd530/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-23 18:40:56,948 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [monitor_threadErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, monitor_threadErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, monitor_threadErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2024-11-23 18:40:56,949 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:40:56,949 INFO L85 PathProgramCache]: Analyzing trace with hash -1384455759, now seen corresponding path program 1 times [2024-11-23 18:40:56,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:40:56,949 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2079481344] [2024-11-23 18:40:56,949 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:40:56,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:40:56,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:40:57,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 18:40:57,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:40:57,033 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2079481344] [2024-11-23 18:40:57,033 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2079481344] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:40:57,033 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:40:57,033 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 18:40:57,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2132175607] [2024-11-23 18:40:57,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:40:57,034 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 18:40:57,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:40:57,035 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 18:40:57,035 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 18:40:57,055 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 140 [2024-11-23 18:40:57,056 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 108 transitions, 362 flow. Second operand has 3 states, 3 states have (on average 68.66666666666667) internal successors, (206), 3 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 18:40:57,056 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 18:40:57,057 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 140 [2024-11-23 18:40:57,057 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 18:40:57,873 INFO L124 PetriNetUnfolderBase]: 2945/6352 cut-off events. [2024-11-23 18:40:57,873 INFO L125 PetriNetUnfolderBase]: For 3255/3346 co-relation queries the response was YES. [2024-11-23 18:40:57,898 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14233 conditions, 6352 events. 2945/6352 cut-off events. For 3255/3346 co-relation queries the response was YES. Maximal size of possible extension queue 207. Compared 49959 event pairs, 1284 based on Foata normal form. 90/5232 useless extension candidates. Maximal degree in co-relation 13978. Up to 2832 conditions per place. [2024-11-23 18:40:57,922 INFO L140 encePairwiseOnDemand]: 135/140 looper letters, 91 selfloop transitions, 3 changer transitions 2/129 dead transitions. [2024-11-23 18:40:57,922 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 129 transitions, 656 flow [2024-11-23 18:40:57,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 18:40:57,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-23 18:40:57,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 259 transitions. [2024-11-23 18:40:57,924 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6166666666666667 [2024-11-23 18:40:57,924 INFO L175 Difference]: Start difference. First operand has 104 places, 108 transitions, 362 flow. Second operand 3 states and 259 transitions. [2024-11-23 18:40:57,924 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 129 transitions, 656 flow [2024-11-23 18:40:57,936 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 129 transitions, 629 flow, removed 12 selfloop flow, removed 1 redundant places. [2024-11-23 18:40:57,939 INFO L231 Difference]: Finished difference. Result has 94 places, 92 transitions, 311 flow [2024-11-23 18:40:57,939 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=310, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=311, PETRI_PLACES=94, PETRI_TRANSITIONS=92} [2024-11-23 18:40:57,940 INFO L279 CegarLoopForPetriNet]: 105 programPoint places, -11 predicate places. [2024-11-23 18:40:57,940 INFO L471 AbstractCegarLoop]: Abstraction has has 94 places, 92 transitions, 311 flow [2024-11-23 18:40:57,940 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 68.66666666666667) internal successors, (206), 3 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 18:40:57,940 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-23 18:40:57,941 INFO L206 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:40:57,941 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-23 18:40:57,941 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting counter_threadErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [monitor_threadErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, monitor_threadErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, monitor_threadErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2024-11-23 18:40:57,941 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:40:57,942 INFO L85 PathProgramCache]: Analyzing trace with hash -1779689126, now seen corresponding path program 1 times [2024-11-23 18:40:57,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:40:57,942 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1234234304] [2024-11-23 18:40:57,942 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:40:57,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:40:57,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:40:58,057 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-23 18:40:58,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:40:58,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1234234304] [2024-11-23 18:40:58,058 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1234234304] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:40:58,058 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:40:58,058 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-23 18:40:58,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1143698303] [2024-11-23 18:40:58,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:40:58,058 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 18:40:58,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:40:58,060 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 18:40:58,060 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 18:40:58,067 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 140 [2024-11-23 18:40:58,068 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 92 transitions, 311 flow. Second operand has 4 states, 4 states have (on average 72.75) internal successors, (291), 4 states have internal predecessors, (291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 18:40:58,068 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 18:40:58,068 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 140 [2024-11-23 18:40:58,068 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 18:40:58,711 INFO L124 PetriNetUnfolderBase]: 1669/3325 cut-off events. [2024-11-23 18:40:58,712 INFO L125 PetriNetUnfolderBase]: For 2068/2068 co-relation queries the response was YES. [2024-11-23 18:40:58,720 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8447 conditions, 3325 events. 1669/3325 cut-off events. For 2068/2068 co-relation queries the response was YES. Maximal size of possible extension queue 144. Compared 22617 event pairs, 510 based on Foata normal form. 47/3001 useless extension candidates. Maximal degree in co-relation 8259. Up to 1607 conditions per place. [2024-11-23 18:40:58,732 INFO L140 encePairwiseOnDemand]: 135/140 looper letters, 84 selfloop transitions, 4 changer transitions 10/127 dead transitions. [2024-11-23 18:40:58,732 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 127 transitions, 612 flow [2024-11-23 18:40:58,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 18:40:58,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-23 18:40:58,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 358 transitions. [2024-11-23 18:40:58,734 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6392857142857142 [2024-11-23 18:40:58,735 INFO L175 Difference]: Start difference. First operand has 94 places, 92 transitions, 311 flow. Second operand 4 states and 358 transitions. [2024-11-23 18:40:58,735 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 127 transitions, 612 flow [2024-11-23 18:40:58,745 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 85 places, 127 transitions, 599 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-23 18:40:58,747 INFO L231 Difference]: Finished difference. Result has 85 places, 72 transitions, 226 flow [2024-11-23 18:40:58,748 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=230, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=226, PETRI_PLACES=85, PETRI_TRANSITIONS=72} [2024-11-23 18:40:58,751 INFO L279 CegarLoopForPetriNet]: 105 programPoint places, -20 predicate places. [2024-11-23 18:40:58,751 INFO L471 AbstractCegarLoop]: Abstraction has has 85 places, 72 transitions, 226 flow [2024-11-23 18:40:58,751 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 72.75) internal successors, (291), 4 states have internal predecessors, (291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 18:40:58,751 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-23 18:40:58,752 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:40:58,752 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-23 18:40:58,752 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [monitor_threadErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, monitor_threadErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, monitor_threadErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2024-11-23 18:40:58,753 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:40:58,753 INFO L85 PathProgramCache]: Analyzing trace with hash -2079388291, now seen corresponding path program 1 times [2024-11-23 18:40:58,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:40:58,753 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1769725652] [2024-11-23 18:40:58,753 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:40:58,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:40:58,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:40:59,207 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 18:40:59,207 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:40:59,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1769725652] [2024-11-23 18:40:59,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1769725652] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:40:59,207 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:40:59,207 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 18:40:59,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1390672749] [2024-11-23 18:40:59,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:40:59,208 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 18:40:59,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:40:59,208 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 18:40:59,208 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-23 18:40:59,343 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 140 [2024-11-23 18:40:59,344 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 72 transitions, 226 flow. Second operand has 4 states, 4 states have (on average 72.75) internal successors, (291), 4 states have internal predecessors, (291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 18:40:59,344 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 18:40:59,344 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 140 [2024-11-23 18:40:59,344 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 18:40:59,908 INFO L124 PetriNetUnfolderBase]: 2225/4381 cut-off events. [2024-11-23 18:40:59,908 INFO L125 PetriNetUnfolderBase]: For 2066/2199 co-relation queries the response was YES. [2024-11-23 18:40:59,919 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10279 conditions, 4381 events. 2225/4381 cut-off events. For 2066/2199 co-relation queries the response was YES. Maximal size of possible extension queue 184. Compared 30430 event pairs, 1085 based on Foata normal form. 130/4008 useless extension candidates. Maximal degree in co-relation 8629. Up to 1964 conditions per place. [2024-11-23 18:40:59,935 INFO L140 encePairwiseOnDemand]: 138/140 looper letters, 66 selfloop transitions, 3 changer transitions 1/97 dead transitions. [2024-11-23 18:40:59,936 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 97 transitions, 445 flow [2024-11-23 18:40:59,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 18:40:59,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-23 18:40:59,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 263 transitions. [2024-11-23 18:40:59,938 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6261904761904762 [2024-11-23 18:40:59,938 INFO L175 Difference]: Start difference. First operand has 85 places, 72 transitions, 226 flow. Second operand 3 states and 263 transitions. [2024-11-23 18:40:59,939 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 97 transitions, 445 flow [2024-11-23 18:40:59,947 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 97 transitions, 431 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-23 18:40:59,949 INFO L231 Difference]: Finished difference. Result has 78 places, 70 transitions, 213 flow [2024-11-23 18:40:59,949 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=214, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=213, PETRI_PLACES=78, PETRI_TRANSITIONS=70} [2024-11-23 18:40:59,952 INFO L279 CegarLoopForPetriNet]: 105 programPoint places, -27 predicate places. [2024-11-23 18:40:59,952 INFO L471 AbstractCegarLoop]: Abstraction has has 78 places, 70 transitions, 213 flow [2024-11-23 18:40:59,952 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 72.75) internal successors, (291), 4 states have internal predecessors, (291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 18:40:59,952 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-23 18:40:59,953 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:40:59,953 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-23 18:40:59,953 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting monitor_threadErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [monitor_threadErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, monitor_threadErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, monitor_threadErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2024-11-23 18:40:59,954 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:40:59,954 INFO L85 PathProgramCache]: Analyzing trace with hash 1168983298, now seen corresponding path program 1 times [2024-11-23 18:40:59,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:40:59,954 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [935845251] [2024-11-23 18:40:59,954 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:40:59,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:40:59,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:41:00,352 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 18:41:00,352 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:41:00,352 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [935845251] [2024-11-23 18:41:00,352 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [935845251] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:41:00,352 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:41:00,353 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 18:41:00,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [115736552] [2024-11-23 18:41:00,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:41:00,353 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 18:41:00,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:41:00,354 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 18:41:00,354 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-23 18:41:00,487 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 140 [2024-11-23 18:41:00,488 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 70 transitions, 213 flow. Second operand has 4 states, 4 states have (on average 72.75) internal successors, (291), 4 states have internal predecessors, (291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 18:41:00,488 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 18:41:00,489 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 140 [2024-11-23 18:41:00,489 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 18:41:01,049 INFO L124 PetriNetUnfolderBase]: 1509/3200 cut-off events. [2024-11-23 18:41:01,049 INFO L125 PetriNetUnfolderBase]: For 2325/2397 co-relation queries the response was YES. [2024-11-23 18:41:01,058 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7544 conditions, 3200 events. 1509/3200 cut-off events. For 2325/2397 co-relation queries the response was YES. Maximal size of possible extension queue 125. Compared 21787 event pairs, 1123 based on Foata normal form. 92/2864 useless extension candidates. Maximal degree in co-relation 6225. Up to 2026 conditions per place. [2024-11-23 18:41:01,070 INFO L140 encePairwiseOnDemand]: 138/140 looper letters, 38 selfloop transitions, 0 changer transitions 23/88 dead transitions. [2024-11-23 18:41:01,070 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 88 transitions, 395 flow [2024-11-23 18:41:01,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 18:41:01,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-23 18:41:01,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 255 transitions. [2024-11-23 18:41:01,072 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6071428571428571 [2024-11-23 18:41:01,072 INFO L175 Difference]: Start difference. First operand has 78 places, 70 transitions, 213 flow. Second operand 3 states and 255 transitions. [2024-11-23 18:41:01,073 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 88 transitions, 395 flow [2024-11-23 18:41:01,079 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 88 transitions, 392 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-23 18:41:01,081 INFO L231 Difference]: Finished difference. Result has 78 places, 65 transitions, 187 flow [2024-11-23 18:41:01,081 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=206, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=187, PETRI_PLACES=78, PETRI_TRANSITIONS=65} [2024-11-23 18:41:01,082 INFO L279 CegarLoopForPetriNet]: 105 programPoint places, -27 predicate places. [2024-11-23 18:41:01,082 INFO L471 AbstractCegarLoop]: Abstraction has has 78 places, 65 transitions, 187 flow [2024-11-23 18:41:01,082 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 72.75) internal successors, (291), 4 states have internal predecessors, (291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 18:41:01,082 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-23 18:41:01,082 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:41:01,082 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-23 18:41:01,083 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting monitor_threadErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [monitor_threadErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, monitor_threadErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, monitor_threadErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2024-11-23 18:41:01,083 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:41:01,083 INFO L85 PathProgramCache]: Analyzing trace with hash 225474550, now seen corresponding path program 1 times [2024-11-23 18:41:01,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:41:01,083 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [922601657] [2024-11-23 18:41:01,083 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:41:01,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:41:01,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:41:01,194 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 18:41:01,195 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:41:01,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [922601657] [2024-11-23 18:41:01,195 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [922601657] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:41:01,195 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:41:01,195 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-23 18:41:01,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [493193735] [2024-11-23 18:41:01,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:41:01,196 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 18:41:01,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:41:01,197 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 18:41:01,198 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 18:41:01,207 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 140 [2024-11-23 18:41:01,208 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 65 transitions, 187 flow. Second operand has 4 states, 4 states have (on average 73.25) internal successors, (293), 4 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 18:41:01,209 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 18:41:01,209 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 140 [2024-11-23 18:41:01,209 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 18:41:01,680 INFO L124 PetriNetUnfolderBase]: 1701/2927 cut-off events. [2024-11-23 18:41:01,680 INFO L125 PetriNetUnfolderBase]: For 1622/1702 co-relation queries the response was YES. [2024-11-23 18:41:01,689 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7524 conditions, 2927 events. 1701/2927 cut-off events. For 1622/1702 co-relation queries the response was YES. Maximal size of possible extension queue 97. Compared 16327 event pairs, 689 based on Foata normal form. 80/2799 useless extension candidates. Maximal degree in co-relation 7512. Up to 1358 conditions per place. [2024-11-23 18:41:01,692 INFO L140 encePairwiseOnDemand]: 135/140 looper letters, 0 selfloop transitions, 0 changer transitions 99/99 dead transitions. [2024-11-23 18:41:01,692 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 99 transitions, 469 flow [2024-11-23 18:41:01,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 18:41:01,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-23 18:41:01,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 341 transitions. [2024-11-23 18:41:01,695 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6089285714285714 [2024-11-23 18:41:01,695 INFO L175 Difference]: Start difference. First operand has 78 places, 65 transitions, 187 flow. Second operand 4 states and 341 transitions. [2024-11-23 18:41:01,695 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 99 transitions, 469 flow [2024-11-23 18:41:01,702 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 99 transitions, 453 flow, removed 1 selfloop flow, removed 4 redundant places. [2024-11-23 18:41:01,703 INFO L231 Difference]: Finished difference. Result has 66 places, 0 transitions, 0 flow [2024-11-23 18:41:01,704 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=145, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=66, PETRI_TRANSITIONS=0} [2024-11-23 18:41:01,705 INFO L279 CegarLoopForPetriNet]: 105 programPoint places, -39 predicate places. [2024-11-23 18:41:01,705 INFO L471 AbstractCegarLoop]: Abstraction has has 66 places, 0 transitions, 0 flow [2024-11-23 18:41:01,705 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 73.25) internal successors, (293), 4 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 18:41:01,709 INFO L782 garLoopResultBuilder]: Registering result SAFE for location monitor_threadErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (26 of 27 remaining) [2024-11-23 18:41:01,710 INFO L782 garLoopResultBuilder]: Registering result SAFE for location monitor_threadErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (25 of 27 remaining) [2024-11-23 18:41:01,710 INFO L782 garLoopResultBuilder]: Registering result SAFE for location monitor_threadErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (24 of 27 remaining) [2024-11-23 18:41:01,710 INFO L782 garLoopResultBuilder]: Registering result SAFE for location monitor_threadErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (23 of 27 remaining) [2024-11-23 18:41:01,710 INFO L782 garLoopResultBuilder]: Registering result SAFE for location counter_threadErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (22 of 27 remaining) [2024-11-23 18:41:01,711 INFO L782 garLoopResultBuilder]: Registering result SAFE for location counter_threadErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (21 of 27 remaining) [2024-11-23 18:41:01,711 INFO L782 garLoopResultBuilder]: Registering result SAFE for location counter_threadErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (20 of 27 remaining) [2024-11-23 18:41:01,711 INFO L782 garLoopResultBuilder]: Registering result SAFE for location counter_threadErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (19 of 27 remaining) [2024-11-23 18:41:01,711 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK (18 of 27 remaining) [2024-11-23 18:41:01,711 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (17 of 27 remaining) [2024-11-23 18:41:01,711 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (16 of 27 remaining) [2024-11-23 18:41:01,712 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (15 of 27 remaining) [2024-11-23 18:41:01,712 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (14 of 27 remaining) [2024-11-23 18:41:01,712 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 27 remaining) [2024-11-23 18:41:01,712 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 27 remaining) [2024-11-23 18:41:01,712 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 27 remaining) [2024-11-23 18:41:01,712 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 27 remaining) [2024-11-23 18:41:01,712 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 27 remaining) [2024-11-23 18:41:01,712 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 27 remaining) [2024-11-23 18:41:01,713 INFO L782 garLoopResultBuilder]: Registering result SAFE for location monitor_threadErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 27 remaining) [2024-11-23 18:41:01,713 INFO L782 garLoopResultBuilder]: Registering result SAFE for location monitor_threadErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 27 remaining) [2024-11-23 18:41:01,713 INFO L782 garLoopResultBuilder]: Registering result SAFE for location monitor_threadErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 27 remaining) [2024-11-23 18:41:01,713 INFO L782 garLoopResultBuilder]: Registering result SAFE for location monitor_threadErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 27 remaining) [2024-11-23 18:41:01,713 INFO L782 garLoopResultBuilder]: Registering result SAFE for location counter_threadErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 27 remaining) [2024-11-23 18:41:01,713 INFO L782 garLoopResultBuilder]: Registering result SAFE for location counter_threadErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 27 remaining) [2024-11-23 18:41:01,714 INFO L782 garLoopResultBuilder]: Registering result SAFE for location counter_threadErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 27 remaining) [2024-11-23 18:41:01,714 INFO L782 garLoopResultBuilder]: Registering result SAFE for location counter_threadErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 27 remaining) [2024-11-23 18:41:01,714 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-23 18:41:01,715 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:41:01,722 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-23 18:41:01,723 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-23 18:41:01,734 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 06:41:01 BasicIcfg [2024-11-23 18:41:01,734 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-23 18:41:01,735 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-23 18:41:01,735 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-23 18:41:01,735 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-23 18:41:01,736 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 06:40:45" (3/4) ... [2024-11-23 18:41:01,739 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-11-23 18:41:01,743 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure monitor_thread [2024-11-23 18:41:01,743 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure counter_thread [2024-11-23 18:41:01,751 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 63 nodes and edges [2024-11-23 18:41:01,751 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2024-11-23 18:41:01,751 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-23 18:41:01,751 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-23 18:41:01,872 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6879caac-2ba4-43c5-8c29-6939ef1dd530/bin/uautomizer-verify-LYvppIcaGC/witness.graphml [2024-11-23 18:41:01,873 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6879caac-2ba4-43c5-8c29-6939ef1dd530/bin/uautomizer-verify-LYvppIcaGC/witness.yml [2024-11-23 18:41:01,873 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-23 18:41:01,878 INFO L158 Benchmark]: Toolchain (without parser) took 19689.76ms. Allocated memory was 117.4MB in the beginning and 570.4MB in the end (delta: 453.0MB). Free memory was 88.9MB in the beginning and 182.8MB in the end (delta: -93.8MB). Peak memory consumption was 358.3MB. Max. memory is 16.1GB. [2024-11-23 18:41:01,878 INFO L158 Benchmark]: CDTParser took 0.46ms. Allocated memory is still 117.4MB. Free memory is still 72.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 18:41:01,879 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1462.73ms. Allocated memory is still 117.4MB. Free memory was 88.7MB in the beginning and 77.9MB in the end (delta: 10.8MB). Peak memory consumption was 67.2MB. Max. memory is 16.1GB. [2024-11-23 18:41:01,879 INFO L158 Benchmark]: Boogie Procedure Inliner took 116.06ms. Allocated memory is still 117.4MB. Free memory was 77.9MB in the beginning and 75.2MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 18:41:01,879 INFO L158 Benchmark]: Boogie Preprocessor took 129.16ms. Allocated memory is still 117.4MB. Free memory was 75.2MB in the beginning and 70.7MB in the end (delta: 4.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-23 18:41:01,880 INFO L158 Benchmark]: RCFGBuilder took 1279.28ms. Allocated memory is still 117.4MB. Free memory was 70.7MB in the beginning and 75.5MB in the end (delta: -4.9MB). Peak memory consumption was 42.3MB. Max. memory is 16.1GB. [2024-11-23 18:41:01,880 INFO L158 Benchmark]: TraceAbstraction took 16551.57ms. Allocated memory was 117.4MB in the beginning and 570.4MB in the end (delta: 453.0MB). Free memory was 74.9MB in the beginning and 191.1MB in the end (delta: -116.3MB). Peak memory consumption was 336.6MB. Max. memory is 16.1GB. [2024-11-23 18:41:01,881 INFO L158 Benchmark]: Witness Printer took 137.95ms. Allocated memory is still 570.4MB. Free memory was 191.1MB in the beginning and 182.8MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-23 18:41:01,883 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.46ms. Allocated memory is still 117.4MB. Free memory is still 72.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1462.73ms. Allocated memory is still 117.4MB. Free memory was 88.7MB in the beginning and 77.9MB in the end (delta: 10.8MB). Peak memory consumption was 67.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 116.06ms. Allocated memory is still 117.4MB. Free memory was 77.9MB in the beginning and 75.2MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 129.16ms. Allocated memory is still 117.4MB. Free memory was 75.2MB in the beginning and 70.7MB in the end (delta: 4.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 1279.28ms. Allocated memory is still 117.4MB. Free memory was 70.7MB in the beginning and 75.5MB in the end (delta: -4.9MB). Peak memory consumption was 42.3MB. Max. memory is 16.1GB. * TraceAbstraction took 16551.57ms. Allocated memory was 117.4MB in the beginning and 570.4MB in the end (delta: 453.0MB). Free memory was 74.9MB in the beginning and 191.1MB in the end (delta: -116.3MB). Peak memory consumption was 336.6MB. Max. memory is 16.1GB. * Witness Printer took 137.95ms. Allocated memory is still 570.4MB. Free memory was 191.1MB in the beginning and 182.8MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 1835]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 159 locations, 27 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 16.3s, OverallIterations: 15, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 12.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1076 SdHoareTripleChecker+Valid, 3.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 725 mSDsluCounter, 92 SdHoareTripleChecker+Invalid, 2.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 23 mSDsCounter, 40 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2124 IncrementalHoareTripleChecker+Invalid, 2164 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 40 mSolverCounterUnsat, 69 mSDtfsCounter, 2124 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 78 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=362occurred in iteration=10, InterpolantAutomatonStates: 52, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.5s InterpolantComputationTime, 245 NumberOfCodeBlocks, 245 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 246 ConstructedInterpolants, 0 QuantifiedInterpolants, 537 SizeOfPredicates, 0 NumberOfNonLiveVariables, 108 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 17 InterpolantComputations, 14 PerfectInterpolantSequences, 10/13 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 17 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-23 18:41:01,910 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6879caac-2ba4-43c5-8c29-6939ef1dd530/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE