./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 d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_baa5b037-9ac7-4c58-a684-7c58f56f6646/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_baa5b037-9ac7-4c58-a684-7c58f56f6646/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_baa5b037-9ac7-4c58-a684-7c58f56f6646/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_baa5b037-9ac7-4c58-a684-7c58f56f6646/bin/uautomizer-verify-aQ6SnzHsRB/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_baa5b037-9ac7-4c58-a684-7c58f56f6646/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_baa5b037-9ac7-4c58-a684-7c58f56f6646/bin/uautomizer-verify-aQ6SnzHsRB --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0bf2f5f336333cdf96c271b32cdeb9b70ee932e1c07acf27a63b4425ec902f3e --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 03:29:11,184 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 03:29:11,277 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_baa5b037-9ac7-4c58-a684-7c58f56f6646/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-28 03:29:11,282 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 03:29:11,282 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 03:29:11,305 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 03:29:11,306 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 03:29:11,306 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 03:29:11,306 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 03:29:11,306 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 03:29:11,306 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 03:29:11,307 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 03:29:11,307 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 03:29:11,307 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 03:29:11,307 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 03:29:11,307 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 03:29:11,307 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 03:29:11,307 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 03:29:11,307 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 03:29:11,307 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 03:29:11,308 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-28 03:29:11,308 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-28 03:29:11,308 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-28 03:29:11,308 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 03:29:11,308 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-28 03:29:11,308 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-28 03:29:11,310 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 03:29:11,310 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 03:29:11,310 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 03:29:11,310 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 03:29:11,310 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:29:11,310 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:29:11,310 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:29:11,310 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:29:11,310 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 03:29:11,310 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:29:11,311 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:29:11,311 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:29:11,311 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:29:11,311 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 03:29:11,311 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 03:29:11,311 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 03:29:11,311 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 03:29:11,311 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 03:29:11,311 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 03:29:11,311 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 03:29:11,311 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 03:29:11,312 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_baa5b037-9ac7-4c58-a684-7c58f56f6646/bin/uautomizer-verify-aQ6SnzHsRB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0bf2f5f336333cdf96c271b32cdeb9b70ee932e1c07acf27a63b4425ec902f3e [2024-11-28 03:29:11,618 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 03:29:11,626 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 03:29:11,629 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 03:29:11,632 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 03:29:11,632 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 03:29:11,633 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_baa5b037-9ac7-4c58-a684-7c58f56f6646/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/goblint-regression/04-mutex_36-trylock_nr.i [2024-11-28 03:29:14,597 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_baa5b037-9ac7-4c58-a684-7c58f56f6646/bin/uautomizer-verify-aQ6SnzHsRB/data/ffc1b36a3/4c032328e23f4c18a67a584511838928/FLAGc7be6c5ac [2024-11-28 03:29:15,060 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 03:29:15,061 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_baa5b037-9ac7-4c58-a684-7c58f56f6646/sv-benchmarks/c/goblint-regression/04-mutex_36-trylock_nr.i [2024-11-28 03:29:15,091 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_baa5b037-9ac7-4c58-a684-7c58f56f6646/bin/uautomizer-verify-aQ6SnzHsRB/data/ffc1b36a3/4c032328e23f4c18a67a584511838928/FLAGc7be6c5ac [2024-11-28 03:29:15,110 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_baa5b037-9ac7-4c58-a684-7c58f56f6646/bin/uautomizer-verify-aQ6SnzHsRB/data/ffc1b36a3/4c032328e23f4c18a67a584511838928 [2024-11-28 03:29:15,112 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 03:29:15,114 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 03:29:15,117 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 03:29:15,117 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 03:29:15,121 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 03:29:15,121 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:29:15" (1/1) ... [2024-11-28 03:29:15,122 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@689167d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:29:15, skipping insertion in model container [2024-11-28 03:29:15,122 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:29:15" (1/1) ... [2024-11-28 03:29:15,185 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 03:29:15,968 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:29:15,986 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 03:29:16,071 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:29:16,254 INFO L204 MainTranslator]: Completed translation [2024-11-28 03:29:16,255 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:29:16 WrapperNode [2024-11-28 03:29:16,255 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 03:29:16,256 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 03:29:16,256 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 03:29:16,256 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 03:29:16,261 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:29:16" (1/1) ... [2024-11-28 03:29:16,282 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:29:16" (1/1) ... [2024-11-28 03:29:16,305 INFO L138 Inliner]: procedures = 525, calls = 30, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 105 [2024-11-28 03:29:16,305 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 03:29:16,306 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 03:29:16,306 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 03:29:16,306 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 03:29:16,315 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:29:16" (1/1) ... [2024-11-28 03:29:16,316 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:29:16" (1/1) ... [2024-11-28 03:29:16,320 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:29:16" (1/1) ... [2024-11-28 03:29:16,337 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]. [2024-11-28 03:29:16,337 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:29:16" (1/1) ... [2024-11-28 03:29:16,337 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:29:16" (1/1) ... [2024-11-28 03:29:16,350 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:29:16" (1/1) ... [2024-11-28 03:29:16,351 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:29:16" (1/1) ... [2024-11-28 03:29:16,356 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:29:16" (1/1) ... [2024-11-28 03:29:16,364 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:29:16" (1/1) ... [2024-11-28 03:29:16,366 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:29:16" (1/1) ... [2024-11-28 03:29:16,378 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 03:29:16,378 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 03:29:16,379 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 03:29:16,379 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 03:29:16,380 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:29:16" (1/1) ... [2024-11-28 03:29:16,385 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:29:16,397 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_baa5b037-9ac7-4c58-a684-7c58f56f6646/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:29:16,410 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_baa5b037-9ac7-4c58-a684-7c58f56f6646/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 03:29:16,413 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_baa5b037-9ac7-4c58-a684-7c58f56f6646/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 03:29:16,439 INFO L130 BoogieDeclarations]: Found specification of procedure counter_thread [2024-11-28 03:29:16,440 INFO L138 BoogieDeclarations]: Found implementation of procedure counter_thread [2024-11-28 03:29:16,440 INFO L130 BoogieDeclarations]: Found specification of procedure monitor_thread [2024-11-28 03:29:16,440 INFO L138 BoogieDeclarations]: Found implementation of procedure monitor_thread [2024-11-28 03:29:16,440 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-28 03:29:16,440 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-28 03:29:16,440 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 03:29:16,440 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 03:29:16,440 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 03:29:16,440 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexTryLock [2024-11-28 03:29:16,440 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-28 03:29:16,440 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-28 03:29:16,440 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-28 03:29:16,441 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-28 03:29:16,441 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-28 03:29:16,441 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-28 03:29:16,441 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-28 03:29:16,441 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-28 03:29:16,441 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-11-28 03:29:16,441 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2024-11-28 03:29:16,441 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 03:29:16,441 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-28 03:29:16,441 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-28 03:29:16,441 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-28 03:29:16,441 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-28 03:29:16,441 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-28 03:29:16,441 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-28 03:29:16,441 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-28 03:29:16,441 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-11-28 03:29:16,443 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-28 03:29:16,798 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 03:29:16,800 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 03:29:17,210 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-28 03:29:17,210 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 03:29:17,408 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 03:29:17,408 INFO L312 CfgBuilder]: Removed 11 assume(true) statements. [2024-11-28 03:29:17,408 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:29:17 BoogieIcfgContainer [2024-11-28 03:29:17,408 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 03:29:17,410 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 03:29:17,410 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 03:29:17,416 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 03:29:17,416 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:29:15" (1/3) ... [2024-11-28 03:29:17,417 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7076d855 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:29:17, skipping insertion in model container [2024-11-28 03:29:17,418 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:29:16" (2/3) ... [2024-11-28 03:29:17,419 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7076d855 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:29:17, skipping insertion in model container [2024-11-28 03:29:17,419 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:29:17" (3/3) ... [2024-11-28 03:29:17,420 INFO L128 eAbstractionObserver]: Analyzing ICFG 04-mutex_36-trylock_nr.i [2024-11-28 03:29:17,436 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 03:29:17,439 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. [2024-11-28 03:29:17,439 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-28 03:29:17,552 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-28 03:29:17,594 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 108 places, 140 transitions, 294 flow [2024-11-28 03:29:17,675 INFO L124 PetriNetUnfolderBase]: 39/138 cut-off events. [2024-11-28 03:29:17,677 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-28 03:29:17,683 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. [2024-11-28 03:29:17,683 INFO L82 GeneralOperation]: Start removeDead. Operand has 108 places, 140 transitions, 294 flow [2024-11-28 03:29:17,691 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 105 places, 137 transitions, 286 flow [2024-11-28 03:29:17,702 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 03:29:17,714 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;@21d43b90, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 03:29:17,714 INFO L334 AbstractCegarLoop]: Starting to check reachability of 27 error locations. [2024-11-28 03:29:17,717 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-28 03:29:17,717 INFO L124 PetriNetUnfolderBase]: 0/3 cut-off events. [2024-11-28 03:29:17,717 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 03:29:17,717 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:29:17,718 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-11-28 03:29:17,718 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)] === [2024-11-28 03:29:17,725 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:29:17,725 INFO L85 PathProgramCache]: Analyzing trace with hash 594160, now seen corresponding path program 1 times [2024-11-28 03:29:17,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:29:17,734 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1021679724] [2024-11-28 03:29:17,734 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:29:17,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:29:17,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:29:18,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:29:18,091 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:29:18,091 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1021679724] [2024-11-28 03:29:18,092 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1021679724] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:29:18,092 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:29:18,093 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-28 03:29:18,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1394616568] [2024-11-28 03:29:18,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:29:18,104 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:29:18,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:29:18,138 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:29:18,138 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:29:18,207 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 140 [2024-11-28 03:29:18,209 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) [2024-11-28 03:29:18,211 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:29:18,212 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 140 [2024-11-28 03:29:18,213 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:29:18,994 INFO L124 PetriNetUnfolderBase]: 1073/3046 cut-off events. [2024-11-28 03:29:18,994 INFO L125 PetriNetUnfolderBase]: For 51/51 co-relation queries the response was YES. [2024-11-28 03:29:19,008 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. [2024-11-28 03:29:19,026 INFO L140 encePairwiseOnDemand]: 112/140 looper letters, 64 selfloop transitions, 9 changer transitions 5/136 dead transitions. [2024-11-28 03:29:19,026 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 136 transitions, 438 flow [2024-11-28 03:29:19,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:29:19,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:29:19,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 326 transitions. [2024-11-28 03:29:19,046 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7761904761904762 [2024-11-28 03:29:19,047 INFO L175 Difference]: Start difference. First operand has 105 places, 137 transitions, 286 flow. Second operand 3 states and 326 transitions. [2024-11-28 03:29:19,048 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 136 transitions, 438 flow [2024-11-28 03:29:19,054 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 136 transitions, 426 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-28 03:29:19,060 INFO L231 Difference]: Finished difference. Result has 95 places, 104 transitions, 253 flow [2024-11-28 03:29:19,062 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} [2024-11-28 03:29:19,067 INFO L279 CegarLoopForPetriNet]: 105 programPoint places, -10 predicate places. [2024-11-28 03:29:19,069 INFO L471 AbstractCegarLoop]: Abstraction has has 95 places, 104 transitions, 253 flow [2024-11-28 03:29:19,069 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) [2024-11-28 03:29:19,069 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:29:19,070 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:29:19,070 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-28 03:29:19,070 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)] === [2024-11-28 03:29:19,071 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:29:19,071 INFO L85 PathProgramCache]: Analyzing trace with hash -617782949, now seen corresponding path program 1 times [2024-11-28 03:29:19,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:29:19,071 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1726537030] [2024-11-28 03:29:19,072 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:29:19,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:29:19,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:29:19,419 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:29:19,419 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:29:19,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1726537030] [2024-11-28 03:29:19,419 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1726537030] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:29:19,419 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:29:19,419 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:29:19,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [785439012] [2024-11-28 03:29:19,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:29:19,420 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:29:19,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:29:19,421 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:29:19,421 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:29:19,498 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 140 [2024-11-28 03:29:19,499 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) [2024-11-28 03:29:19,500 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:29:19,500 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 140 [2024-11-28 03:29:19,500 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:29:20,003 INFO L124 PetriNetUnfolderBase]: 1160/2812 cut-off events. [2024-11-28 03:29:20,003 INFO L125 PetriNetUnfolderBase]: For 342/342 co-relation queries the response was YES. [2024-11-28 03:29:20,010 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. [2024-11-28 03:29:20,024 INFO L140 encePairwiseOnDemand]: 136/140 looper letters, 57 selfloop transitions, 4 changer transitions 0/117 dead transitions. [2024-11-28 03:29:20,024 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 117 transitions, 405 flow [2024-11-28 03:29:20,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:29:20,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:29:20,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 268 transitions. [2024-11-28 03:29:20,029 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.638095238095238 [2024-11-28 03:29:20,031 INFO L175 Difference]: Start difference. First operand has 95 places, 104 transitions, 253 flow. Second operand 3 states and 268 transitions. [2024-11-28 03:29:20,031 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 117 transitions, 405 flow [2024-11-28 03:29:20,035 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 117 transitions, 396 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-28 03:29:20,038 INFO L231 Difference]: Finished difference. Result has 94 places, 106 transitions, 270 flow [2024-11-28 03:29:20,039 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} [2024-11-28 03:29:20,040 INFO L279 CegarLoopForPetriNet]: 105 programPoint places, -11 predicate places. [2024-11-28 03:29:20,040 INFO L471 AbstractCegarLoop]: Abstraction has has 94 places, 106 transitions, 270 flow [2024-11-28 03:29:20,041 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) [2024-11-28 03:29:20,041 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:29:20,044 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:29:20,044 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 03:29:20,044 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)] === [2024-11-28 03:29:20,045 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:29:20,045 INFO L85 PathProgramCache]: Analyzing trace with hash -617782950, now seen corresponding path program 1 times [2024-11-28 03:29:20,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:29:20,045 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [227133598] [2024-11-28 03:29:20,045 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:29:20,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:29:20,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:29:20,190 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:29:20,190 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:29:20,190 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [227133598] [2024-11-28 03:29:20,191 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [227133598] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:29:20,191 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:29:20,191 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:29:20,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415163689] [2024-11-28 03:29:20,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:29:20,193 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:29:20,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:29:20,194 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:29:20,194 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:29:20,251 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 140 [2024-11-28 03:29:20,251 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) [2024-11-28 03:29:20,252 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:29:20,252 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 140 [2024-11-28 03:29:20,252 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:29:20,638 INFO L124 PetriNetUnfolderBase]: 1175/2817 cut-off events. [2024-11-28 03:29:20,638 INFO L125 PetriNetUnfolderBase]: For 466/466 co-relation queries the response was YES. [2024-11-28 03:29:20,644 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. [2024-11-28 03:29:20,658 INFO L140 encePairwiseOnDemand]: 138/140 looper letters, 57 selfloop transitions, 2 changer transitions 2/116 dead transitions. [2024-11-28 03:29:20,658 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 116 transitions, 412 flow [2024-11-28 03:29:20,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:29:20,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:29:20,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 265 transitions. [2024-11-28 03:29:20,661 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6309523809523809 [2024-11-28 03:29:20,661 INFO L175 Difference]: Start difference. First operand has 94 places, 106 transitions, 270 flow. Second operand 3 states and 265 transitions. [2024-11-28 03:29:20,661 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 116 transitions, 412 flow [2024-11-28 03:29:20,668 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 116 transitions, 404 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-11-28 03:29:20,671 INFO L231 Difference]: Finished difference. Result has 94 places, 105 transitions, 264 flow [2024-11-28 03:29:20,672 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} [2024-11-28 03:29:20,673 INFO L279 CegarLoopForPetriNet]: 105 programPoint places, -11 predicate places. [2024-11-28 03:29:20,673 INFO L471 AbstractCegarLoop]: Abstraction has has 94 places, 105 transitions, 264 flow [2024-11-28 03:29:20,674 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) [2024-11-28 03:29:20,674 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:29:20,674 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:29:20,674 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 03:29:20,674 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)] === [2024-11-28 03:29:20,675 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:29:20,675 INFO L85 PathProgramCache]: Analyzing trace with hash 1936725103, now seen corresponding path program 1 times [2024-11-28 03:29:20,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:29:20,676 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [934002603] [2024-11-28 03:29:20,676 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:29:20,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:29:20,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:29:20,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:29:20,835 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:29:20,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [934002603] [2024-11-28 03:29:20,835 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [934002603] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:29:20,836 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:29:20,836 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 03:29:20,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [182120115] [2024-11-28 03:29:20,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:29:20,836 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:29:20,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:29:20,836 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:29:20,837 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:29:20,848 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 140 [2024-11-28 03:29:20,848 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) [2024-11-28 03:29:20,848 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:29:20,849 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 140 [2024-11-28 03:29:20,849 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:29:21,537 INFO L124 PetriNetUnfolderBase]: 1535/3277 cut-off events. [2024-11-28 03:29:21,537 INFO L125 PetriNetUnfolderBase]: For 585/585 co-relation queries the response was YES. [2024-11-28 03:29:21,544 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. [2024-11-28 03:29:21,562 INFO L140 encePairwiseOnDemand]: 135/140 looper letters, 119 selfloop transitions, 6 changer transitions 0/173 dead transitions. [2024-11-28 03:29:21,562 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 173 transitions, 707 flow [2024-11-28 03:29:21,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:29:21,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-28 03:29:21,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 454 transitions. [2024-11-28 03:29:21,564 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6485714285714286 [2024-11-28 03:29:21,564 INFO L175 Difference]: Start difference. First operand has 94 places, 105 transitions, 264 flow. Second operand 5 states and 454 transitions. [2024-11-28 03:29:21,564 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 173 transitions, 707 flow [2024-11-28 03:29:21,569 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 173 transitions, 702 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-28 03:29:21,572 INFO L231 Difference]: Finished difference. Result has 91 places, 98 transitions, 252 flow [2024-11-28 03:29:21,572 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} [2024-11-28 03:29:21,573 INFO L279 CegarLoopForPetriNet]: 105 programPoint places, -14 predicate places. [2024-11-28 03:29:21,573 INFO L471 AbstractCegarLoop]: Abstraction has has 91 places, 98 transitions, 252 flow [2024-11-28 03:29:21,573 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) [2024-11-28 03:29:21,573 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:29:21,573 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:29:21,573 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 03:29:21,573 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)] === [2024-11-28 03:29:21,574 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:29:21,574 INFO L85 PathProgramCache]: Analyzing trace with hash 458651939, now seen corresponding path program 1 times [2024-11-28 03:29:21,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:29:21,574 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1478671648] [2024-11-28 03:29:21,574 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:29:21,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:29:21,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:29:21,732 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:29:21,732 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:29:21,733 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1478671648] [2024-11-28 03:29:21,733 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1478671648] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:29:21,733 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:29:21,733 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:29:21,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1802343512] [2024-11-28 03:29:21,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:29:21,733 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:29:21,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:29:21,734 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:29:21,734 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:29:21,791 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 140 [2024-11-28 03:29:21,792 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) [2024-11-28 03:29:21,792 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:29:21,792 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 140 [2024-11-28 03:29:21,792 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:29:22,478 INFO L124 PetriNetUnfolderBase]: 2527/5332 cut-off events. [2024-11-28 03:29:22,479 INFO L125 PetriNetUnfolderBase]: For 812/835 co-relation queries the response was YES. [2024-11-28 03:29:22,490 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. [2024-11-28 03:29:22,520 INFO L140 encePairwiseOnDemand]: 134/140 looper letters, 72 selfloop transitions, 6 changer transitions 0/126 dead transitions. [2024-11-28 03:29:22,520 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 126 transitions, 482 flow [2024-11-28 03:29:22,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:29:22,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:29:22,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 278 transitions. [2024-11-28 03:29:22,522 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6619047619047619 [2024-11-28 03:29:22,522 INFO L175 Difference]: Start difference. First operand has 91 places, 98 transitions, 252 flow. Second operand 3 states and 278 transitions. [2024-11-28 03:29:22,522 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 126 transitions, 482 flow [2024-11-28 03:29:22,527 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 126 transitions, 474 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-28 03:29:22,529 INFO L231 Difference]: Finished difference. Result has 94 places, 102 transitions, 298 flow [2024-11-28 03:29:22,529 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} [2024-11-28 03:29:22,530 INFO L279 CegarLoopForPetriNet]: 105 programPoint places, -11 predicate places. [2024-11-28 03:29:22,530 INFO L471 AbstractCegarLoop]: Abstraction has has 94 places, 102 transitions, 298 flow [2024-11-28 03:29:22,530 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) [2024-11-28 03:29:22,531 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:29:22,531 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:29:22,531 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 03:29:22,531 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)] === [2024-11-28 03:29:22,531 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:29:22,532 INFO L85 PathProgramCache]: Analyzing trace with hash 458651938, now seen corresponding path program 1 times [2024-11-28 03:29:22,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:29:22,532 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1268713439] [2024-11-28 03:29:22,532 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:29:22,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:29:22,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:29:22,629 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:29:22,629 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:29:22,629 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1268713439] [2024-11-28 03:29:22,629 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1268713439] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:29:22,630 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:29:22,630 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:29:22,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1033412911] [2024-11-28 03:29:22,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:29:22,631 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:29:22,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:29:22,631 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:29:22,631 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:29:22,677 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 140 [2024-11-28 03:29:22,678 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) [2024-11-28 03:29:22,678 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:29:22,678 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 140 [2024-11-28 03:29:22,678 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:29:23,301 INFO L124 PetriNetUnfolderBase]: 2481/5267 cut-off events. [2024-11-28 03:29:23,302 INFO L125 PetriNetUnfolderBase]: For 2016/2062 co-relation queries the response was YES. [2024-11-28 03:29:23,313 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. [2024-11-28 03:29:23,330 INFO L140 encePairwiseOnDemand]: 138/140 looper letters, 78 selfloop transitions, 2 changer transitions 0/128 dead transitions. [2024-11-28 03:29:23,331 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 128 transitions, 530 flow [2024-11-28 03:29:23,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:29:23,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:29:23,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 276 transitions. [2024-11-28 03:29:23,332 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6571428571428571 [2024-11-28 03:29:23,333 INFO L175 Difference]: Start difference. First operand has 94 places, 102 transitions, 298 flow. Second operand 3 states and 276 transitions. [2024-11-28 03:29:23,333 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 128 transitions, 530 flow [2024-11-28 03:29:23,364 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 128 transitions, 510 flow, removed 4 selfloop flow, removed 2 redundant places. [2024-11-28 03:29:23,367 INFO L231 Difference]: Finished difference. Result has 93 places, 101 transitions, 280 flow [2024-11-28 03:29:23,367 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} [2024-11-28 03:29:23,370 INFO L279 CegarLoopForPetriNet]: 105 programPoint places, -12 predicate places. [2024-11-28 03:29:23,370 INFO L471 AbstractCegarLoop]: Abstraction has has 93 places, 101 transitions, 280 flow [2024-11-28 03:29:23,370 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) [2024-11-28 03:29:23,371 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:29:23,371 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:29:23,371 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-28 03:29:23,371 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)] === [2024-11-28 03:29:23,371 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:29:23,372 INFO L85 PathProgramCache]: Analyzing trace with hash -1569086759, now seen corresponding path program 1 times [2024-11-28 03:29:23,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:29:23,372 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [308277579] [2024-11-28 03:29:23,372 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:29:23,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:29:23,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:29:23,454 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:29:23,455 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:29:23,455 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [308277579] [2024-11-28 03:29:23,455 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [308277579] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:29:23,455 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:29:23,455 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:29:23,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [953547777] [2024-11-28 03:29:23,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:29:23,456 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:29:23,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:29:23,457 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:29:23,457 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:29:23,457 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 140 [2024-11-28 03:29:23,458 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) [2024-11-28 03:29:23,458 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:29:23,458 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 140 [2024-11-28 03:29:23,458 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:29:23,906 INFO L124 PetriNetUnfolderBase]: 1573/3813 cut-off events. [2024-11-28 03:29:23,906 INFO L125 PetriNetUnfolderBase]: For 1812/1812 co-relation queries the response was YES. [2024-11-28 03:29:23,914 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. [2024-11-28 03:29:23,926 INFO L140 encePairwiseOnDemand]: 137/140 looper letters, 72 selfloop transitions, 2 changer transitions 0/124 dead transitions. [2024-11-28 03:29:23,926 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 124 transitions, 500 flow [2024-11-28 03:29:23,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:29:23,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:29:23,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 276 transitions. [2024-11-28 03:29:23,930 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6571428571428571 [2024-11-28 03:29:23,930 INFO L175 Difference]: Start difference. First operand has 93 places, 101 transitions, 280 flow. Second operand 3 states and 276 transitions. [2024-11-28 03:29:23,931 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 124 transitions, 500 flow [2024-11-28 03:29:23,937 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 124 transitions, 496 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-28 03:29:23,939 INFO L231 Difference]: Finished difference. Result has 95 places, 102 transitions, 290 flow [2024-11-28 03:29:23,939 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} [2024-11-28 03:29:23,940 INFO L279 CegarLoopForPetriNet]: 105 programPoint places, -10 predicate places. [2024-11-28 03:29:23,940 INFO L471 AbstractCegarLoop]: Abstraction has has 95 places, 102 transitions, 290 flow [2024-11-28 03:29:23,940 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) [2024-11-28 03:29:23,940 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:29:23,940 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:29:23,940 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-28 03:29:23,940 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)] === [2024-11-28 03:29:23,941 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:29:23,941 INFO L85 PathProgramCache]: Analyzing trace with hash 882480271, now seen corresponding path program 1 times [2024-11-28 03:29:23,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:29:23,941 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [478505944] [2024-11-28 03:29:23,942 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:29:23,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:29:23,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:29:24,046 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:29:24,046 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:29:24,047 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [478505944] [2024-11-28 03:29:24,047 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [478505944] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:29:24,047 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:29:24,047 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:29:24,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1560018024] [2024-11-28 03:29:24,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:29:24,047 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:29:24,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:29:24,048 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:29:24,048 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:29:24,094 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 140 [2024-11-28 03:29:24,095 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) [2024-11-28 03:29:24,095 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:29:24,095 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 140 [2024-11-28 03:29:24,095 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:29:24,618 INFO L124 PetriNetUnfolderBase]: 1742/4072 cut-off events. [2024-11-28 03:29:24,618 INFO L125 PetriNetUnfolderBase]: For 1307/1353 co-relation queries the response was YES. [2024-11-28 03:29:24,627 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. [2024-11-28 03:29:24,641 INFO L140 encePairwiseOnDemand]: 138/140 looper letters, 70 selfloop transitions, 3 changer transitions 0/121 dead transitions. [2024-11-28 03:29:24,641 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 121 transitions, 503 flow [2024-11-28 03:29:24,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:29:24,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:29:24,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 267 transitions. [2024-11-28 03:29:24,643 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6357142857142857 [2024-11-28 03:29:24,643 INFO L175 Difference]: Start difference. First operand has 95 places, 102 transitions, 290 flow. Second operand 3 states and 267 transitions. [2024-11-28 03:29:24,643 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 121 transitions, 503 flow [2024-11-28 03:29:24,648 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 121 transitions, 496 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-11-28 03:29:24,650 INFO L231 Difference]: Finished difference. Result has 95 places, 101 transitions, 290 flow [2024-11-28 03:29:24,650 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} [2024-11-28 03:29:24,651 INFO L279 CegarLoopForPetriNet]: 105 programPoint places, -10 predicate places. [2024-11-28 03:29:24,651 INFO L471 AbstractCegarLoop]: Abstraction has has 95 places, 101 transitions, 290 flow [2024-11-28 03:29:24,651 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) [2024-11-28 03:29:24,651 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:29:24,651 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:29:24,651 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-28 03:29:24,652 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)] === [2024-11-28 03:29:24,652 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:29:24,652 INFO L85 PathProgramCache]: Analyzing trace with hash 882480272, now seen corresponding path program 1 times [2024-11-28 03:29:24,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:29:24,652 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1561993138] [2024-11-28 03:29:24,653 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:29:24,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:29:24,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:29:24,768 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:29:24,768 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:29:24,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1561993138] [2024-11-28 03:29:24,769 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1561993138] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:29:24,769 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:29:24,769 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:29:24,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1164794748] [2024-11-28 03:29:24,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:29:24,769 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:29:24,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:29:24,770 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:29:24,770 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:29:24,824 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 140 [2024-11-28 03:29:24,825 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) [2024-11-28 03:29:24,825 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:29:24,825 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 140 [2024-11-28 03:29:24,825 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:29:25,263 INFO L124 PetriNetUnfolderBase]: 1604/3862 cut-off events. [2024-11-28 03:29:25,263 INFO L125 PetriNetUnfolderBase]: For 1317/1359 co-relation queries the response was YES. [2024-11-28 03:29:25,271 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. [2024-11-28 03:29:25,282 INFO L140 encePairwiseOnDemand]: 135/140 looper letters, 66 selfloop transitions, 7 changer transitions 0/121 dead transitions. [2024-11-28 03:29:25,282 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 121 transitions, 502 flow [2024-11-28 03:29:25,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:29:25,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:29:25,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 270 transitions. [2024-11-28 03:29:25,284 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6428571428571429 [2024-11-28 03:29:25,284 INFO L175 Difference]: Start difference. First operand has 95 places, 101 transitions, 290 flow. Second operand 3 states and 270 transitions. [2024-11-28 03:29:25,284 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 121 transitions, 502 flow [2024-11-28 03:29:25,289 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 121 transitions, 499 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-28 03:29:25,291 INFO L231 Difference]: Finished difference. Result has 97 places, 105 transitions, 341 flow [2024-11-28 03:29:25,291 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} [2024-11-28 03:29:25,291 INFO L279 CegarLoopForPetriNet]: 105 programPoint places, -8 predicate places. [2024-11-28 03:29:25,291 INFO L471 AbstractCegarLoop]: Abstraction has has 97 places, 105 transitions, 341 flow [2024-11-28 03:29:25,292 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) [2024-11-28 03:29:25,292 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:29:25,292 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:29:25,292 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-28 03:29:25,292 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)] === [2024-11-28 03:29:25,293 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:29:25,293 INFO L85 PathProgramCache]: Analyzing trace with hash 925654003, now seen corresponding path program 1 times [2024-11-28 03:29:25,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:29:25,293 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [218041628] [2024-11-28 03:29:25,293 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:29:25,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:29:25,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:29:25,370 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:29:25,370 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:29:25,370 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [218041628] [2024-11-28 03:29:25,370 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [218041628] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:29:25,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1144616023] [2024-11-28 03:29:25,371 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:29:25,371 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:29:25,371 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_baa5b037-9ac7-4c58-a684-7c58f56f6646/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:29:25,373 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_baa5b037-9ac7-4c58-a684-7c58f56f6646/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:29:25,377 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_baa5b037-9ac7-4c58-a684-7c58f56f6646/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 03:29:25,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:29:25,511 INFO L256 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 03:29:25,516 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:29:25,555 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:29:25,558 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:29:25,586 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:29:25,587 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1144616023] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:29:25,587 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:29:25,587 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2024-11-28 03:29:25,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [904964025] [2024-11-28 03:29:25,588 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:29:25,588 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 03:29:25,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:29:25,589 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 03:29:25,589 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-28 03:29:25,590 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 140 [2024-11-28 03:29:25,592 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) [2024-11-28 03:29:25,592 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:29:25,592 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 140 [2024-11-28 03:29:25,592 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:29:26,173 INFO L124 PetriNetUnfolderBase]: 1771/4140 cut-off events. [2024-11-28 03:29:26,174 INFO L125 PetriNetUnfolderBase]: For 1999/1999 co-relation queries the response was YES. [2024-11-28 03:29:26,183 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. [2024-11-28 03:29:26,196 INFO L140 encePairwiseOnDemand]: 137/140 looper letters, 146 selfloop transitions, 5 changer transitions 0/200 dead transitions. [2024-11-28 03:29:26,196 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 200 transitions, 1007 flow [2024-11-28 03:29:26,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:29:26,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-28 03:29:26,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 554 transitions. [2024-11-28 03:29:26,198 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6595238095238095 [2024-11-28 03:29:26,198 INFO L175 Difference]: Start difference. First operand has 97 places, 105 transitions, 341 flow. Second operand 6 states and 554 transitions. [2024-11-28 03:29:26,199 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 200 transitions, 1007 flow [2024-11-28 03:29:26,208 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 200 transitions, 972 flow, removed 8 selfloop flow, removed 1 redundant places. [2024-11-28 03:29:26,210 INFO L231 Difference]: Finished difference. Result has 104 places, 108 transitions, 362 flow [2024-11-28 03:29:26,211 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} [2024-11-28 03:29:26,211 INFO L279 CegarLoopForPetriNet]: 105 programPoint places, -1 predicate places. [2024-11-28 03:29:26,211 INFO L471 AbstractCegarLoop]: Abstraction has has 104 places, 108 transitions, 362 flow [2024-11-28 03:29:26,212 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) [2024-11-28 03:29:26,212 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:29:26,212 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:29:26,222 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_baa5b037-9ac7-4c58-a684-7c58f56f6646/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-28 03:29:26,416 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_baa5b037-9ac7-4c58-a684-7c58f56f6646/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:29:26,417 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)] === [2024-11-28 03:29:26,417 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:29:26,417 INFO L85 PathProgramCache]: Analyzing trace with hash -1384455759, now seen corresponding path program 1 times [2024-11-28 03:29:26,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:29:26,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [330056401] [2024-11-28 03:29:26,417 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:29:26,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:29:26,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:29:26,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:29:26,476 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:29:26,476 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [330056401] [2024-11-28 03:29:26,476 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [330056401] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:29:26,476 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:29:26,476 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:29:26,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [421053798] [2024-11-28 03:29:26,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:29:26,476 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:29:26,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:29:26,477 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:29:26,477 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:29:26,490 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 140 [2024-11-28 03:29:26,491 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) [2024-11-28 03:29:26,491 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:29:26,491 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 140 [2024-11-28 03:29:26,491 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:29:27,085 INFO L124 PetriNetUnfolderBase]: 2945/6352 cut-off events. [2024-11-28 03:29:27,085 INFO L125 PetriNetUnfolderBase]: For 3255/3346 co-relation queries the response was YES. [2024-11-28 03:29:27,103 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. [2024-11-28 03:29:27,123 INFO L140 encePairwiseOnDemand]: 135/140 looper letters, 91 selfloop transitions, 3 changer transitions 2/129 dead transitions. [2024-11-28 03:29:27,124 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 129 transitions, 656 flow [2024-11-28 03:29:27,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:29:27,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:29:27,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 259 transitions. [2024-11-28 03:29:27,125 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6166666666666667 [2024-11-28 03:29:27,125 INFO L175 Difference]: Start difference. First operand has 104 places, 108 transitions, 362 flow. Second operand 3 states and 259 transitions. [2024-11-28 03:29:27,125 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 129 transitions, 656 flow [2024-11-28 03:29:27,135 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 129 transitions, 629 flow, removed 12 selfloop flow, removed 1 redundant places. [2024-11-28 03:29:27,136 INFO L231 Difference]: Finished difference. Result has 94 places, 92 transitions, 311 flow [2024-11-28 03:29:27,136 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} [2024-11-28 03:29:27,137 INFO L279 CegarLoopForPetriNet]: 105 programPoint places, -11 predicate places. [2024-11-28 03:29:27,137 INFO L471 AbstractCegarLoop]: Abstraction has has 94 places, 92 transitions, 311 flow [2024-11-28 03:29:27,137 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) [2024-11-28 03:29:27,137 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:29:27,138 INFO L206 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:29:27,138 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-28 03:29:27,138 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)] === [2024-11-28 03:29:27,138 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:29:27,139 INFO L85 PathProgramCache]: Analyzing trace with hash -1779689126, now seen corresponding path program 1 times [2024-11-28 03:29:27,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:29:27,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2048486343] [2024-11-28 03:29:27,139 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:29:27,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:29:27,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:29:27,217 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-28 03:29:27,217 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:29:27,217 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2048486343] [2024-11-28 03:29:27,218 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2048486343] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:29:27,218 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:29:27,218 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 03:29:27,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [476134120] [2024-11-28 03:29:27,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:29:27,218 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:29:27,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:29:27,219 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:29:27,219 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:29:27,224 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 140 [2024-11-28 03:29:27,224 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) [2024-11-28 03:29:27,224 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:29:27,224 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 140 [2024-11-28 03:29:27,225 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:29:27,731 INFO L124 PetriNetUnfolderBase]: 1669/3325 cut-off events. [2024-11-28 03:29:27,731 INFO L125 PetriNetUnfolderBase]: For 2068/2068 co-relation queries the response was YES. [2024-11-28 03:29:27,738 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. [2024-11-28 03:29:27,748 INFO L140 encePairwiseOnDemand]: 135/140 looper letters, 84 selfloop transitions, 4 changer transitions 10/127 dead transitions. [2024-11-28 03:29:27,749 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 127 transitions, 612 flow [2024-11-28 03:29:27,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:29:27,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-28 03:29:27,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 358 transitions. [2024-11-28 03:29:27,751 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6392857142857142 [2024-11-28 03:29:27,751 INFO L175 Difference]: Start difference. First operand has 94 places, 92 transitions, 311 flow. Second operand 4 states and 358 transitions. [2024-11-28 03:29:27,751 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 127 transitions, 612 flow [2024-11-28 03:29:27,760 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 85 places, 127 transitions, 599 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-28 03:29:27,762 INFO L231 Difference]: Finished difference. Result has 85 places, 72 transitions, 226 flow [2024-11-28 03:29:27,762 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} [2024-11-28 03:29:27,763 INFO L279 CegarLoopForPetriNet]: 105 programPoint places, -20 predicate places. [2024-11-28 03:29:27,763 INFO L471 AbstractCegarLoop]: Abstraction has has 85 places, 72 transitions, 226 flow [2024-11-28 03:29:27,763 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) [2024-11-28 03:29:27,763 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:29:27,763 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] [2024-11-28 03:29:27,764 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-28 03:29:27,764 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)] === [2024-11-28 03:29:27,764 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:29:27,764 INFO L85 PathProgramCache]: Analyzing trace with hash -2079388291, now seen corresponding path program 1 times [2024-11-28 03:29:27,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:29:27,764 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1736187506] [2024-11-28 03:29:27,765 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:29:27,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:29:27,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:29:28,120 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:29:28,120 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:29:28,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1736187506] [2024-11-28 03:29:28,121 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1736187506] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:29:28,121 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:29:28,121 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:29:28,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358030756] [2024-11-28 03:29:28,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:29:28,121 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:29:28,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:29:28,122 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:29:28,122 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:29:28,224 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 140 [2024-11-28 03:29:28,224 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) [2024-11-28 03:29:28,224 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:29:28,224 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 140 [2024-11-28 03:29:28,225 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:29:28,671 INFO L124 PetriNetUnfolderBase]: 2225/4381 cut-off events. [2024-11-28 03:29:28,671 INFO L125 PetriNetUnfolderBase]: For 2066/2199 co-relation queries the response was YES. [2024-11-28 03:29:28,680 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. [2024-11-28 03:29:28,693 INFO L140 encePairwiseOnDemand]: 138/140 looper letters, 66 selfloop transitions, 3 changer transitions 1/97 dead transitions. [2024-11-28 03:29:28,693 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 97 transitions, 445 flow [2024-11-28 03:29:28,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:29:28,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:29:28,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 263 transitions. [2024-11-28 03:29:28,695 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6261904761904762 [2024-11-28 03:29:28,695 INFO L175 Difference]: Start difference. First operand has 85 places, 72 transitions, 226 flow. Second operand 3 states and 263 transitions. [2024-11-28 03:29:28,695 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 97 transitions, 445 flow [2024-11-28 03:29:28,701 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 97 transitions, 431 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-28 03:29:28,702 INFO L231 Difference]: Finished difference. Result has 78 places, 70 transitions, 213 flow [2024-11-28 03:29:28,703 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} [2024-11-28 03:29:28,703 INFO L279 CegarLoopForPetriNet]: 105 programPoint places, -27 predicate places. [2024-11-28 03:29:28,703 INFO L471 AbstractCegarLoop]: Abstraction has has 78 places, 70 transitions, 213 flow [2024-11-28 03:29:28,704 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) [2024-11-28 03:29:28,704 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:29:28,704 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] [2024-11-28 03:29:28,704 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-28 03:29:28,704 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)] === [2024-11-28 03:29:28,705 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:29:28,705 INFO L85 PathProgramCache]: Analyzing trace with hash 1168983298, now seen corresponding path program 1 times [2024-11-28 03:29:28,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:29:28,705 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1261700685] [2024-11-28 03:29:28,705 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:29:28,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:29:28,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:29:28,886 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:29:28,886 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:29:28,886 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1261700685] [2024-11-28 03:29:28,886 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1261700685] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:29:28,886 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:29:28,887 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:29:28,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1164883143] [2024-11-28 03:29:28,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:29:28,887 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:29:28,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:29:28,887 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:29:28,887 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:29:28,974 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 140 [2024-11-28 03:29:28,974 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) [2024-11-28 03:29:28,974 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:29:28,975 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 140 [2024-11-28 03:29:28,975 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:29:29,357 INFO L124 PetriNetUnfolderBase]: 1509/3200 cut-off events. [2024-11-28 03:29:29,357 INFO L125 PetriNetUnfolderBase]: For 2325/2397 co-relation queries the response was YES. [2024-11-28 03:29:29,364 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. [2024-11-28 03:29:29,374 INFO L140 encePairwiseOnDemand]: 138/140 looper letters, 38 selfloop transitions, 0 changer transitions 23/88 dead transitions. [2024-11-28 03:29:29,374 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 88 transitions, 395 flow [2024-11-28 03:29:29,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:29:29,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:29:29,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 255 transitions. [2024-11-28 03:29:29,376 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6071428571428571 [2024-11-28 03:29:29,376 INFO L175 Difference]: Start difference. First operand has 78 places, 70 transitions, 213 flow. Second operand 3 states and 255 transitions. [2024-11-28 03:29:29,376 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 88 transitions, 395 flow [2024-11-28 03:29:29,382 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 88 transitions, 392 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-28 03:29:29,383 INFO L231 Difference]: Finished difference. Result has 78 places, 65 transitions, 187 flow [2024-11-28 03:29:29,383 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} [2024-11-28 03:29:29,385 INFO L279 CegarLoopForPetriNet]: 105 programPoint places, -27 predicate places. [2024-11-28 03:29:29,385 INFO L471 AbstractCegarLoop]: Abstraction has has 78 places, 65 transitions, 187 flow [2024-11-28 03:29:29,386 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) [2024-11-28 03:29:29,386 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:29:29,386 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] [2024-11-28 03:29:29,386 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-28 03:29:29,386 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)] === [2024-11-28 03:29:29,387 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:29:29,387 INFO L85 PathProgramCache]: Analyzing trace with hash 225474550, now seen corresponding path program 1 times [2024-11-28 03:29:29,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:29:29,387 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [494326936] [2024-11-28 03:29:29,387 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:29:29,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:29:29,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:29:29,470 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:29:29,470 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:29:29,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [494326936] [2024-11-28 03:29:29,471 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [494326936] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:29:29,471 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:29:29,471 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 03:29:29,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [721594461] [2024-11-28 03:29:29,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:29:29,471 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:29:29,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:29:29,472 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:29:29,472 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:29:29,480 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 140 [2024-11-28 03:29:29,481 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) [2024-11-28 03:29:29,481 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:29:29,481 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 140 [2024-11-28 03:29:29,482 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:29:29,832 INFO L124 PetriNetUnfolderBase]: 1701/2927 cut-off events. [2024-11-28 03:29:29,832 INFO L125 PetriNetUnfolderBase]: For 1622/1702 co-relation queries the response was YES. [2024-11-28 03:29:29,837 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. [2024-11-28 03:29:29,840 INFO L140 encePairwiseOnDemand]: 135/140 looper letters, 0 selfloop transitions, 0 changer transitions 99/99 dead transitions. [2024-11-28 03:29:29,840 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 99 transitions, 469 flow [2024-11-28 03:29:29,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:29:29,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-28 03:29:29,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 341 transitions. [2024-11-28 03:29:29,842 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6089285714285714 [2024-11-28 03:29:29,842 INFO L175 Difference]: Start difference. First operand has 78 places, 65 transitions, 187 flow. Second operand 4 states and 341 transitions. [2024-11-28 03:29:29,842 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 99 transitions, 469 flow [2024-11-28 03:29:29,848 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 99 transitions, 453 flow, removed 1 selfloop flow, removed 4 redundant places. [2024-11-28 03:29:29,848 INFO L231 Difference]: Finished difference. Result has 66 places, 0 transitions, 0 flow [2024-11-28 03:29:29,849 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} [2024-11-28 03:29:29,849 INFO L279 CegarLoopForPetriNet]: 105 programPoint places, -39 predicate places. [2024-11-28 03:29:29,849 INFO L471 AbstractCegarLoop]: Abstraction has has 66 places, 0 transitions, 0 flow [2024-11-28 03:29:29,850 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) [2024-11-28 03:29:29,852 INFO L782 garLoopResultBuilder]: Registering result SAFE for location monitor_threadErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (26 of 27 remaining) [2024-11-28 03:29:29,852 INFO L782 garLoopResultBuilder]: Registering result SAFE for location monitor_threadErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (25 of 27 remaining) [2024-11-28 03:29:29,852 INFO L782 garLoopResultBuilder]: Registering result SAFE for location monitor_threadErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (24 of 27 remaining) [2024-11-28 03:29:29,852 INFO L782 garLoopResultBuilder]: Registering result SAFE for location monitor_threadErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (23 of 27 remaining) [2024-11-28 03:29:29,852 INFO L782 garLoopResultBuilder]: Registering result SAFE for location counter_threadErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (22 of 27 remaining) [2024-11-28 03:29:29,852 INFO L782 garLoopResultBuilder]: Registering result SAFE for location counter_threadErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (21 of 27 remaining) [2024-11-28 03:29:29,853 INFO L782 garLoopResultBuilder]: Registering result SAFE for location counter_threadErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (20 of 27 remaining) [2024-11-28 03:29:29,853 INFO L782 garLoopResultBuilder]: Registering result SAFE for location counter_threadErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (19 of 27 remaining) [2024-11-28 03:29:29,853 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK (18 of 27 remaining) [2024-11-28 03:29:29,853 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (17 of 27 remaining) [2024-11-28 03:29:29,853 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (16 of 27 remaining) [2024-11-28 03:29:29,853 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (15 of 27 remaining) [2024-11-28 03:29:29,853 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (14 of 27 remaining) [2024-11-28 03:29:29,853 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 27 remaining) [2024-11-28 03:29:29,853 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 27 remaining) [2024-11-28 03:29:29,853 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 27 remaining) [2024-11-28 03:29:29,853 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 27 remaining) [2024-11-28 03:29:29,853 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 27 remaining) [2024-11-28 03:29:29,853 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 27 remaining) [2024-11-28 03:29:29,853 INFO L782 garLoopResultBuilder]: Registering result SAFE for location monitor_threadErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 27 remaining) [2024-11-28 03:29:29,853 INFO L782 garLoopResultBuilder]: Registering result SAFE for location monitor_threadErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 27 remaining) [2024-11-28 03:29:29,853 INFO L782 garLoopResultBuilder]: Registering result SAFE for location monitor_threadErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 27 remaining) [2024-11-28 03:29:29,853 INFO L782 garLoopResultBuilder]: Registering result SAFE for location monitor_threadErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 27 remaining) [2024-11-28 03:29:29,853 INFO L782 garLoopResultBuilder]: Registering result SAFE for location counter_threadErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 27 remaining) [2024-11-28 03:29:29,854 INFO L782 garLoopResultBuilder]: Registering result SAFE for location counter_threadErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 27 remaining) [2024-11-28 03:29:29,854 INFO L782 garLoopResultBuilder]: Registering result SAFE for location counter_threadErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 27 remaining) [2024-11-28 03:29:29,854 INFO L782 garLoopResultBuilder]: Registering result SAFE for location counter_threadErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 27 remaining) [2024-11-28 03:29:29,854 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-28 03:29:29,854 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:29:29,859 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-28 03:29:29,860 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-28 03:29:29,866 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 03:29:29 BasicIcfg [2024-11-28 03:29:29,869 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-28 03:29:29,869 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-28 03:29:29,869 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-28 03:29:29,870 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-28 03:29:29,870 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:29:17" (3/4) ... [2024-11-28 03:29:29,873 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-11-28 03:29:29,876 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure monitor_thread [2024-11-28 03:29:29,876 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure counter_thread [2024-11-28 03:29:29,880 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 63 nodes and edges [2024-11-28 03:29:29,882 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2024-11-28 03:29:29,882 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-28 03:29:29,882 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-28 03:29:29,978 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_baa5b037-9ac7-4c58-a684-7c58f56f6646/bin/uautomizer-verify-aQ6SnzHsRB/witness.graphml [2024-11-28 03:29:29,979 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_baa5b037-9ac7-4c58-a684-7c58f56f6646/bin/uautomizer-verify-aQ6SnzHsRB/witness.yml [2024-11-28 03:29:29,979 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-28 03:29:29,980 INFO L158 Benchmark]: Toolchain (without parser) took 14865.63ms. Allocated memory was 117.4MB in the beginning and 402.7MB in the end (delta: 285.2MB). Free memory was 89.6MB in the beginning and 137.9MB in the end (delta: -48.3MB). Peak memory consumption was 239.8MB. Max. memory is 16.1GB. [2024-11-28 03:29:29,980 INFO L158 Benchmark]: CDTParser took 0.38ms. Allocated memory is still 117.4MB. Free memory is still 74.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 03:29:29,980 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1139.13ms. Allocated memory is still 117.4MB. Free memory was 89.6MB in the beginning and 79.0MB in the end (delta: 10.6MB). Peak memory consumption was 67.4MB. Max. memory is 16.1GB. [2024-11-28 03:29:29,981 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.25ms. Allocated memory is still 117.4MB. Free memory was 79.0MB in the beginning and 76.0MB in the end (delta: 3.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 03:29:29,981 INFO L158 Benchmark]: Boogie Preprocessor took 71.97ms. Allocated memory is still 117.4MB. Free memory was 76.0MB in the beginning and 72.4MB in the end (delta: 3.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 03:29:29,981 INFO L158 Benchmark]: RCFGBuilder took 1029.79ms. Allocated memory is still 117.4MB. Free memory was 72.4MB in the beginning and 77.2MB in the end (delta: -4.8MB). Peak memory consumption was 50.6MB. Max. memory is 16.1GB. [2024-11-28 03:29:29,982 INFO L158 Benchmark]: TraceAbstraction took 12458.66ms. Allocated memory was 117.4MB in the beginning and 402.7MB in the end (delta: 285.2MB). Free memory was 76.5MB in the beginning and 146.3MB in the end (delta: -69.8MB). Peak memory consumption was 218.0MB. Max. memory is 16.1GB. [2024-11-28 03:29:29,982 INFO L158 Benchmark]: Witness Printer took 109.50ms. Allocated memory is still 402.7MB. Free memory was 146.3MB in the beginning and 137.9MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 03:29:29,984 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38ms. Allocated memory is still 117.4MB. Free memory is still 74.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1139.13ms. Allocated memory is still 117.4MB. Free memory was 89.6MB in the beginning and 79.0MB in the end (delta: 10.6MB). Peak memory consumption was 67.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 49.25ms. Allocated memory is still 117.4MB. Free memory was 79.0MB in the beginning and 76.0MB in the end (delta: 3.0MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 71.97ms. Allocated memory is still 117.4MB. Free memory was 76.0MB in the beginning and 72.4MB in the end (delta: 3.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 1029.79ms. Allocated memory is still 117.4MB. Free memory was 72.4MB in the beginning and 77.2MB in the end (delta: -4.8MB). Peak memory consumption was 50.6MB. Max. memory is 16.1GB. * TraceAbstraction took 12458.66ms. Allocated memory was 117.4MB in the beginning and 402.7MB in the end (delta: 285.2MB). Free memory was 76.5MB in the beginning and 146.3MB in the end (delta: -69.8MB). Peak memory consumption was 218.0MB. Max. memory is 16.1GB. * Witness Printer took 109.50ms. Allocated memory is still 402.7MB. Free memory was 146.3MB in the beginning and 137.9MB 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: 12.3s, OverallIterations: 15, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 9.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1076 SdHoareTripleChecker+Valid, 2.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 725 mSDsluCounter, 92 SdHoareTripleChecker+Invalid, 2.2s 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: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.8s 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! [2024-11-28 03:29:30,004 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_baa5b037-9ac7-4c58-a684-7c58f56f6646/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE