./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/04-mutex_36-trylock_nr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 527bcce2 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f074874-9a1f-4dd9-b3c5-bc286262779d/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f074874-9a1f-4dd9-b3c5-bc286262779d/bin/uautomizer-verify-bycVGegfSx/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f074874-9a1f-4dd9-b3c5-bc286262779d/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f074874-9a1f-4dd9-b3c5-bc286262779d/bin/uautomizer-verify-bycVGegfSx/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/04-mutex_36-trylock_nr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f074874-9a1f-4dd9-b3c5-bc286262779d/bin/uautomizer-verify-bycVGegfSx/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f074874-9a1f-4dd9-b3c5-bc286262779d/bin/uautomizer-verify-bycVGegfSx --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0bf2f5f336333cdf96c271b32cdeb9b70ee932e1c07acf27a63b4425ec902f3e --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 22:20:20,622 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 22:20:20,703 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f074874-9a1f-4dd9-b3c5-bc286262779d/bin/uautomizer-verify-bycVGegfSx/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-21 22:20:20,709 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 22:20:20,710 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 22:20:20,737 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 22:20:20,738 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 22:20:20,738 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 22:20:20,739 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 22:20:20,740 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 22:20:20,741 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 22:20:20,741 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 22:20:20,742 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 22:20:20,743 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 22:20:20,743 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 22:20:20,744 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 22:20:20,744 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 22:20:20,745 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 22:20:20,746 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 22:20:20,746 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 22:20:20,747 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 22:20:20,747 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 22:20:20,748 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-21 22:20:20,749 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 22:20:20,749 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 22:20:20,750 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 22:20:20,750 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 22:20:20,751 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 22:20:20,752 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 22:20:20,752 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 22:20:20,753 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:20:20,754 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 22:20:20,754 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 22:20:20,755 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 22:20:20,755 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-21 22:20:20,756 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 22:20:20,756 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 22:20:20,757 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-21 22:20:20,757 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 22:20:20,758 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-21 22:20:20,758 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 22:20:20,759 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f074874-9a1f-4dd9-b3c5-bc286262779d/bin/uautomizer-verify-bycVGegfSx/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f074874-9a1f-4dd9-b3c5-bc286262779d/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0bf2f5f336333cdf96c271b32cdeb9b70ee932e1c07acf27a63b4425ec902f3e [2023-11-21 22:20:21,037 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 22:20:21,061 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 22:20:21,063 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 22:20:21,065 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 22:20:21,065 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 22:20:21,067 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f074874-9a1f-4dd9-b3c5-bc286262779d/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/goblint-regression/04-mutex_36-trylock_nr.i [2023-11-21 22:20:24,257 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 22:20:24,670 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 22:20:24,671 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f074874-9a1f-4dd9-b3c5-bc286262779d/sv-benchmarks/c/goblint-regression/04-mutex_36-trylock_nr.i [2023-11-21 22:20:24,704 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f074874-9a1f-4dd9-b3c5-bc286262779d/bin/uautomizer-verify-bycVGegfSx/data/27ce19284/4f3773289be947ffb63371c2ec43a005/FLAG7d9b7d28b [2023-11-21 22:20:24,720 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f074874-9a1f-4dd9-b3c5-bc286262779d/bin/uautomizer-verify-bycVGegfSx/data/27ce19284/4f3773289be947ffb63371c2ec43a005 [2023-11-21 22:20:24,723 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 22:20:24,724 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 22:20:24,726 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 22:20:24,726 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 22:20:24,732 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 22:20:24,734 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:20:24" (1/1) ... [2023-11-21 22:20:24,735 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@490b66fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:20:24, skipping insertion in model container [2023-11-21 22:20:24,736 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:20:24" (1/1) ... [2023-11-21 22:20:24,832 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 22:20:25,801 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:20:25,819 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 22:20:25,914 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:20:26,165 WARN L675 CHandler]: The function strerror is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 22:20:26,165 WARN L675 CHandler]: The function sleep is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 22:20:26,165 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 22:20:26,166 WARN L675 CHandler]: The function fprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 22:20:26,174 INFO L206 MainTranslator]: Completed translation [2023-11-21 22:20:26,175 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:20:26 WrapperNode [2023-11-21 22:20:26,175 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 22:20:26,176 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 22:20:26,177 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 22:20:26,177 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 22:20:26,185 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:20:26" (1/1) ... [2023-11-21 22:20:26,220 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:20:26" (1/1) ... [2023-11-21 22:20:26,255 INFO L138 Inliner]: procedures = 525, calls = 71, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 151 [2023-11-21 22:20:26,256 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 22:20:26,257 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 22:20:26,257 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 22:20:26,258 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 22:20:26,267 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:20:26" (1/1) ... [2023-11-21 22:20:26,267 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:20:26" (1/1) ... [2023-11-21 22:20:26,275 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:20:26" (1/1) ... [2023-11-21 22:20:26,275 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:20:26" (1/1) ... [2023-11-21 22:20:26,293 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:20:26" (1/1) ... [2023-11-21 22:20:26,298 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:20:26" (1/1) ... [2023-11-21 22:20:26,304 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:20:26" (1/1) ... [2023-11-21 22:20:26,307 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:20:26" (1/1) ... [2023-11-21 22:20:26,316 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 22:20:26,317 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 22:20:26,317 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 22:20:26,317 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 22:20:26,318 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:20:26" (1/1) ... [2023-11-21 22:20:26,324 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:20:26,340 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f074874-9a1f-4dd9-b3c5-bc286262779d/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:20:26,378 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f074874-9a1f-4dd9-b3c5-bc286262779d/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 22:20:26,404 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f074874-9a1f-4dd9-b3c5-bc286262779d/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 22:20:26,423 INFO L130 BoogieDeclarations]: Found specification of procedure counter_thread [2023-11-21 22:20:26,424 INFO L138 BoogieDeclarations]: Found implementation of procedure counter_thread [2023-11-21 22:20:26,424 INFO L130 BoogieDeclarations]: Found specification of procedure sleep [2023-11-21 22:20:26,424 INFO L130 BoogieDeclarations]: Found specification of procedure monitor_thread [2023-11-21 22:20:26,425 INFO L138 BoogieDeclarations]: Found implementation of procedure monitor_thread [2023-11-21 22:20:26,425 INFO L130 BoogieDeclarations]: Found specification of procedure strerror [2023-11-21 22:20:26,426 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 22:20:26,426 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-21 22:20:26,426 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-21 22:20:26,426 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 22:20:26,428 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 22:20:26,429 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 22:20:26,429 INFO L130 BoogieDeclarations]: Found specification of procedure fprintf [2023-11-21 22:20:26,430 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 22:20:26,430 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexTryLock [2023-11-21 22:20:26,430 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2023-11-21 22:20:26,430 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-21 22:20:26,431 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-21 22:20:26,431 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-21 22:20:26,433 WARN L212 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-21 22:20:26,771 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 22:20:26,774 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 22:20:27,224 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 22:20:27,255 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 22:20:27,255 INFO L308 CfgBuilder]: Removed 19 assume(true) statements. [2023-11-21 22:20:27,257 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:20:27 BoogieIcfgContainer [2023-11-21 22:20:27,257 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 22:20:27,259 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 22:20:27,259 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 22:20:27,263 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 22:20:27,263 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 10:20:24" (1/3) ... [2023-11-21 22:20:27,264 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f326c40 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:20:27, skipping insertion in model container [2023-11-21 22:20:27,266 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:20:26" (2/3) ... [2023-11-21 22:20:27,267 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f326c40 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:20:27, skipping insertion in model container [2023-11-21 22:20:27,267 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:20:27" (3/3) ... [2023-11-21 22:20:27,274 INFO L112 eAbstractionObserver]: Analyzing ICFG 04-mutex_36-trylock_nr.i [2023-11-21 22:20:27,282 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-21 22:20:27,291 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 22:20:27,291 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2023-11-21 22:20:27,291 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-21 22:20:27,422 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-11-21 22:20:27,469 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 265 places, 290 transitions, 594 flow [2023-11-21 22:20:27,638 INFO L124 PetriNetUnfolderBase]: 32/288 cut-off events. [2023-11-21 22:20:27,638 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-21 22:20:27,650 INFO L83 FinitePrefix]: Finished finitePrefix Result has 297 conditions, 288 events. 32/288 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 709 event pairs, 0 based on Foata normal form. 0/240 useless extension candidates. Maximal degree in co-relation 179. Up to 5 conditions per place. [2023-11-21 22:20:27,651 INFO L82 GeneralOperation]: Start removeDead. Operand has 265 places, 290 transitions, 594 flow [2023-11-21 22:20:27,668 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 248 places, 270 transitions, 552 flow [2023-11-21 22:20:27,685 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 22:20:27,703 INFO L357 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, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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;@392ea320, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 22:20:27,704 INFO L358 AbstractCegarLoop]: Starting to check reachability of 27 error locations. [2023-11-21 22:20:27,726 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-21 22:20:27,727 INFO L124 PetriNetUnfolderBase]: 0/50 cut-off events. [2023-11-21 22:20:27,727 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-21 22:20:27,727 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:20:27,728 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:20:27,729 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [monitor_threadErr0ASSERT_VIOLATIONDATA_RACE, monitor_threadErr1ASSERT_VIOLATIONDATA_RACE, monitor_threadErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2023-11-21 22:20:27,735 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:20:27,736 INFO L85 PathProgramCache]: Analyzing trace with hash -933493537, now seen corresponding path program 1 times [2023-11-21 22:20:27,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:20:27,747 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [110504798] [2023-11-21 22:20:27,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:20:27,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:20:27,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:20:28,260 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:20:28,262 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:20:28,262 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [110504798] [2023-11-21 22:20:28,268 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [110504798] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:20:28,268 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:20:28,269 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:20:28,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327902699] [2023-11-21 22:20:28,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:20:28,282 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:20:28,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:20:28,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:20:28,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:20:28,346 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 246 out of 290 [2023-11-21 22:20:28,352 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 248 places, 270 transitions, 552 flow. Second operand has 3 states, 3 states have (on average 247.33333333333334) internal successors, (742), 3 states have internal predecessors, (742), 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) [2023-11-21 22:20:28,352 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:20:28,352 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 246 of 290 [2023-11-21 22:20:28,353 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:20:28,530 INFO L124 PetriNetUnfolderBase]: 27/539 cut-off events. [2023-11-21 22:20:28,530 INFO L125 PetriNetUnfolderBase]: For 20/20 co-relation queries the response was YES. [2023-11-21 22:20:28,539 INFO L83 FinitePrefix]: Finished finitePrefix Result has 607 conditions, 539 events. 27/539 cut-off events. For 20/20 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 2712 event pairs, 15 based on Foata normal form. 99/565 useless extension candidates. Maximal degree in co-relation 436. Up to 48 conditions per place. [2023-11-21 22:20:28,544 INFO L140 encePairwiseOnDemand]: 269/290 looper letters, 13 selfloop transitions, 2 changer transitions 6/236 dead transitions. [2023-11-21 22:20:28,544 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 241 places, 236 transitions, 514 flow [2023-11-21 22:20:28,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:20:28,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:20:28,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 772 transitions. [2023-11-21 22:20:28,575 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8873563218390804 [2023-11-21 22:20:28,576 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 772 transitions. [2023-11-21 22:20:28,577 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 772 transitions. [2023-11-21 22:20:28,582 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:20:28,585 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 772 transitions. [2023-11-21 22:20:28,592 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 257.3333333333333) internal successors, (772), 3 states have internal predecessors, (772), 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) [2023-11-21 22:20:28,602 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 290.0) internal successors, (1160), 4 states have internal predecessors, (1160), 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) [2023-11-21 22:20:28,603 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 290.0) internal successors, (1160), 4 states have internal predecessors, (1160), 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) [2023-11-21 22:20:28,606 INFO L175 Difference]: Start difference. First operand has 248 places, 270 transitions, 552 flow. Second operand 3 states and 772 transitions. [2023-11-21 22:20:28,607 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 241 places, 236 transitions, 514 flow [2023-11-21 22:20:28,613 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 237 places, 236 transitions, 506 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-21 22:20:28,621 INFO L231 Difference]: Finished difference. Result has 237 places, 230 transitions, 468 flow [2023-11-21 22:20:28,624 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=290, PETRI_DIFFERENCE_MINUEND_FLOW=476, PETRI_DIFFERENCE_MINUEND_PLACES=235, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=236, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=234, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=468, PETRI_PLACES=237, PETRI_TRANSITIONS=230} [2023-11-21 22:20:28,630 INFO L281 CegarLoopForPetriNet]: 248 programPoint places, -11 predicate places. [2023-11-21 22:20:28,630 INFO L495 AbstractCegarLoop]: Abstraction has has 237 places, 230 transitions, 468 flow [2023-11-21 22:20:28,631 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 247.33333333333334) internal successors, (742), 3 states have internal predecessors, (742), 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) [2023-11-21 22:20:28,632 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:20:28,632 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:20:28,632 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-21 22:20:28,633 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [monitor_threadErr0ASSERT_VIOLATIONDATA_RACE, monitor_threadErr1ASSERT_VIOLATIONDATA_RACE, monitor_threadErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2023-11-21 22:20:28,633 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:20:28,633 INFO L85 PathProgramCache]: Analyzing trace with hash 856656402, now seen corresponding path program 1 times [2023-11-21 22:20:28,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:20:28,634 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1715757293] [2023-11-21 22:20:28,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:20:28,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:20:28,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:20:28,845 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:20:28,846 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:20:28,846 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1715757293] [2023-11-21 22:20:28,846 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1715757293] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:20:28,846 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:20:28,846 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:20:28,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1960729660] [2023-11-21 22:20:28,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:20:28,849 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:20:28,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:20:28,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:20:28,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:20:28,907 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 231 out of 290 [2023-11-21 22:20:28,908 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 237 places, 230 transitions, 468 flow. Second operand has 3 states, 3 states have (on average 232.0) internal successors, (696), 3 states have internal predecessors, (696), 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) [2023-11-21 22:20:28,911 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:20:28,911 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 231 of 290 [2023-11-21 22:20:28,911 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:20:29,275 INFO L124 PetriNetUnfolderBase]: 304/1776 cut-off events. [2023-11-21 22:20:29,276 INFO L125 PetriNetUnfolderBase]: For 12/12 co-relation queries the response was YES. [2023-11-21 22:20:29,285 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2264 conditions, 1776 events. 304/1776 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 14804 event pairs, 156 based on Foata normal form. 1/1585 useless extension candidates. Maximal degree in co-relation 2207. Up to 451 conditions per place. [2023-11-21 22:20:29,295 INFO L140 encePairwiseOnDemand]: 274/290 looper letters, 25 selfloop transitions, 7 changer transitions 7/235 dead transitions. [2023-11-21 22:20:29,296 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 225 places, 235 transitions, 552 flow [2023-11-21 22:20:29,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:20:29,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:20:29,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 737 transitions. [2023-11-21 22:20:29,300 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8471264367816091 [2023-11-21 22:20:29,300 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 737 transitions. [2023-11-21 22:20:29,302 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 737 transitions. [2023-11-21 22:20:29,302 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:20:29,303 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 737 transitions. [2023-11-21 22:20:29,305 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 245.66666666666666) internal successors, (737), 3 states have internal predecessors, (737), 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) [2023-11-21 22:20:29,308 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 290.0) internal successors, (1160), 4 states have internal predecessors, (1160), 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) [2023-11-21 22:20:29,310 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 290.0) internal successors, (1160), 4 states have internal predecessors, (1160), 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) [2023-11-21 22:20:29,311 INFO L175 Difference]: Start difference. First operand has 237 places, 230 transitions, 468 flow. Second operand 3 states and 737 transitions. [2023-11-21 22:20:29,314 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 225 places, 235 transitions, 552 flow [2023-11-21 22:20:29,318 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 223 places, 235 transitions, 548 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 22:20:29,326 INFO L231 Difference]: Finished difference. Result has 224 places, 222 transitions, 478 flow [2023-11-21 22:20:29,327 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=290, PETRI_DIFFERENCE_MINUEND_FLOW=448, PETRI_DIFFERENCE_MINUEND_PLACES=221, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=222, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=215, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=478, PETRI_PLACES=224, PETRI_TRANSITIONS=222} [2023-11-21 22:20:29,328 INFO L281 CegarLoopForPetriNet]: 248 programPoint places, -24 predicate places. [2023-11-21 22:20:29,328 INFO L495 AbstractCegarLoop]: Abstraction has has 224 places, 222 transitions, 478 flow [2023-11-21 22:20:29,330 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 232.0) internal successors, (696), 3 states have internal predecessors, (696), 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) [2023-11-21 22:20:29,330 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:20:29,330 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:20:29,336 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-21 22:20:29,336 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting counter_threadErr0ASSERT_VIOLATIONDATA_RACE === [monitor_threadErr0ASSERT_VIOLATIONDATA_RACE, monitor_threadErr1ASSERT_VIOLATIONDATA_RACE, monitor_threadErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2023-11-21 22:20:29,337 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:20:29,337 INFO L85 PathProgramCache]: Analyzing trace with hash -1584624902, now seen corresponding path program 1 times [2023-11-21 22:20:29,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:20:29,338 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1855080987] [2023-11-21 22:20:29,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:20:29,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:20:29,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:20:29,491 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:20:29,491 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:20:29,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1855080987] [2023-11-21 22:20:29,491 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1855080987] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:20:29,492 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:20:29,492 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:20:29,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094976061] [2023-11-21 22:20:29,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:20:29,493 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:20:29,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:20:29,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:20:29,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:20:29,513 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 248 out of 290 [2023-11-21 22:20:29,514 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 224 places, 222 transitions, 478 flow. Second operand has 3 states, 3 states have (on average 249.33333333333334) internal successors, (748), 3 states have internal predecessors, (748), 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) [2023-11-21 22:20:29,515 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:20:29,515 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 248 of 290 [2023-11-21 22:20:29,515 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:20:29,702 INFO L124 PetriNetUnfolderBase]: 71/813 cut-off events. [2023-11-21 22:20:29,703 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2023-11-21 22:20:29,708 INFO L83 FinitePrefix]: Finished finitePrefix Result has 990 conditions, 813 events. 71/813 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 5278 event pairs, 20 based on Foata normal form. 0/745 useless extension candidates. Maximal degree in co-relation 529. Up to 74 conditions per place. [2023-11-21 22:20:29,712 INFO L140 encePairwiseOnDemand]: 286/290 looper letters, 13 selfloop transitions, 2 changer transitions 0/223 dead transitions. [2023-11-21 22:20:29,712 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 219 places, 223 transitions, 511 flow [2023-11-21 22:20:29,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:20:29,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:20:29,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 761 transitions. [2023-11-21 22:20:29,716 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8747126436781609 [2023-11-21 22:20:29,716 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 761 transitions. [2023-11-21 22:20:29,716 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 761 transitions. [2023-11-21 22:20:29,717 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:20:29,717 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 761 transitions. [2023-11-21 22:20:29,720 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 253.66666666666666) internal successors, (761), 3 states have internal predecessors, (761), 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) [2023-11-21 22:20:29,723 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 290.0) internal successors, (1160), 4 states have internal predecessors, (1160), 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) [2023-11-21 22:20:29,725 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 290.0) internal successors, (1160), 4 states have internal predecessors, (1160), 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) [2023-11-21 22:20:29,725 INFO L175 Difference]: Start difference. First operand has 224 places, 222 transitions, 478 flow. Second operand 3 states and 761 transitions. [2023-11-21 22:20:29,725 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 219 places, 223 transitions, 511 flow [2023-11-21 22:20:29,728 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 219 places, 223 transitions, 511 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-21 22:20:29,731 INFO L231 Difference]: Finished difference. Result has 220 places, 222 transitions, 488 flow [2023-11-21 22:20:29,732 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=290, PETRI_DIFFERENCE_MINUEND_FLOW=474, PETRI_DIFFERENCE_MINUEND_PLACES=217, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=220, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=218, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=488, PETRI_PLACES=220, PETRI_TRANSITIONS=222} [2023-11-21 22:20:29,734 INFO L281 CegarLoopForPetriNet]: 248 programPoint places, -28 predicate places. [2023-11-21 22:20:29,734 INFO L495 AbstractCegarLoop]: Abstraction has has 220 places, 222 transitions, 488 flow [2023-11-21 22:20:29,735 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 249.33333333333334) internal successors, (748), 3 states have internal predecessors, (748), 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) [2023-11-21 22:20:29,735 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:20:29,735 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:20:29,736 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-21 22:20:29,736 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting counter_threadErr2ASSERT_VIOLATIONDATA_RACE === [monitor_threadErr0ASSERT_VIOLATIONDATA_RACE, monitor_threadErr1ASSERT_VIOLATIONDATA_RACE, monitor_threadErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2023-11-21 22:20:29,737 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:20:29,738 INFO L85 PathProgramCache]: Analyzing trace with hash 1538662214, now seen corresponding path program 1 times [2023-11-21 22:20:29,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:20:29,738 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1919401303] [2023-11-21 22:20:29,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:20:29,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:20:29,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:20:29,877 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:20:29,877 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:20:29,877 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1919401303] [2023-11-21 22:20:29,877 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1919401303] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:20:29,878 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:20:29,878 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:20:29,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [530714582] [2023-11-21 22:20:29,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:20:29,879 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:20:29,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:20:29,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:20:29,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:20:29,894 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 248 out of 290 [2023-11-21 22:20:29,895 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 220 places, 222 transitions, 488 flow. Second operand has 3 states, 3 states have (on average 249.33333333333334) internal successors, (748), 3 states have internal predecessors, (748), 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) [2023-11-21 22:20:29,895 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:20:29,895 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 248 of 290 [2023-11-21 22:20:29,895 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:20:30,224 INFO L124 PetriNetUnfolderBase]: 126/1401 cut-off events. [2023-11-21 22:20:30,224 INFO L125 PetriNetUnfolderBase]: For 10/10 co-relation queries the response was YES. [2023-11-21 22:20:30,234 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1734 conditions, 1401 events. 126/1401 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 10008 event pairs, 21 based on Foata normal form. 0/1290 useless extension candidates. Maximal degree in co-relation 1536. Up to 133 conditions per place. [2023-11-21 22:20:30,240 INFO L140 encePairwiseOnDemand]: 284/290 looper letters, 18 selfloop transitions, 4 changer transitions 0/230 dead transitions. [2023-11-21 22:20:30,240 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 221 places, 230 transitions, 550 flow [2023-11-21 22:20:30,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:20:30,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:20:30,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 768 transitions. [2023-11-21 22:20:30,244 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8827586206896552 [2023-11-21 22:20:30,244 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 768 transitions. [2023-11-21 22:20:30,244 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 768 transitions. [2023-11-21 22:20:30,245 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:20:30,245 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 768 transitions. [2023-11-21 22:20:30,248 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 256.0) internal successors, (768), 3 states have internal predecessors, (768), 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) [2023-11-21 22:20:30,251 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 290.0) internal successors, (1160), 4 states have internal predecessors, (1160), 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) [2023-11-21 22:20:30,252 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 290.0) internal successors, (1160), 4 states have internal predecessors, (1160), 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) [2023-11-21 22:20:30,252 INFO L175 Difference]: Start difference. First operand has 220 places, 222 transitions, 488 flow. Second operand 3 states and 768 transitions. [2023-11-21 22:20:30,253 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 221 places, 230 transitions, 550 flow [2023-11-21 22:20:30,256 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 221 places, 230 transitions, 550 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-21 22:20:30,260 INFO L231 Difference]: Finished difference. Result has 223 places, 224 transitions, 516 flow [2023-11-21 22:20:30,261 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=290, PETRI_DIFFERENCE_MINUEND_FLOW=486, PETRI_DIFFERENCE_MINUEND_PLACES=219, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=221, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=217, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=516, PETRI_PLACES=223, PETRI_TRANSITIONS=224} [2023-11-21 22:20:30,263 INFO L281 CegarLoopForPetriNet]: 248 programPoint places, -25 predicate places. [2023-11-21 22:20:30,263 INFO L495 AbstractCegarLoop]: Abstraction has has 223 places, 224 transitions, 516 flow [2023-11-21 22:20:30,264 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 249.33333333333334) internal successors, (748), 3 states have internal predecessors, (748), 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) [2023-11-21 22:20:30,264 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:20:30,265 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:20:30,265 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-21 22:20:30,266 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [monitor_threadErr0ASSERT_VIOLATIONDATA_RACE, monitor_threadErr1ASSERT_VIOLATIONDATA_RACE, monitor_threadErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2023-11-21 22:20:30,266 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:20:30,266 INFO L85 PathProgramCache]: Analyzing trace with hash -1898563886, now seen corresponding path program 1 times [2023-11-21 22:20:30,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:20:30,269 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [15171816] [2023-11-21 22:20:30,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:20:30,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:20:30,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:20:31,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:20:31,090 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:20:31,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [15171816] [2023-11-21 22:20:31,090 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [15171816] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:20:31,091 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:20:31,095 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-21 22:20:31,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717597734] [2023-11-21 22:20:31,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:20:31,097 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-21 22:20:31,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:20:31,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-21 22:20:31,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-21 22:20:31,260 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 244 out of 290 [2023-11-21 22:20:31,263 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 223 places, 224 transitions, 516 flow. Second operand has 6 states, 6 states have (on average 245.5) internal successors, (1473), 6 states have internal predecessors, (1473), 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) [2023-11-21 22:20:31,264 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:20:31,264 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 244 of 290 [2023-11-21 22:20:31,265 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:20:31,602 INFO L124 PetriNetUnfolderBase]: 261/1527 cut-off events. [2023-11-21 22:20:31,602 INFO L125 PetriNetUnfolderBase]: For 17/46 co-relation queries the response was YES. [2023-11-21 22:20:31,614 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2111 conditions, 1527 events. 261/1527 cut-off events. For 17/46 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 11490 event pairs, 18 based on Foata normal form. 8/1419 useless extension candidates. Maximal degree in co-relation 1848. Up to 129 conditions per place. [2023-11-21 22:20:31,622 INFO L140 encePairwiseOnDemand]: 285/290 looper letters, 26 selfloop transitions, 4 changer transitions 0/239 dead transitions. [2023-11-21 22:20:31,622 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 227 places, 239 transitions, 606 flow [2023-11-21 22:20:31,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-21 22:20:31,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-21 22:20:31,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1495 transitions. [2023-11-21 22:20:31,627 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8591954022988506 [2023-11-21 22:20:31,628 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1495 transitions. [2023-11-21 22:20:31,628 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1495 transitions. [2023-11-21 22:20:31,629 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:20:31,629 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1495 transitions. [2023-11-21 22:20:31,634 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 249.16666666666666) internal successors, (1495), 6 states have internal predecessors, (1495), 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) [2023-11-21 22:20:31,639 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 290.0) internal successors, (2030), 7 states have internal predecessors, (2030), 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) [2023-11-21 22:20:31,640 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 290.0) internal successors, (2030), 7 states have internal predecessors, (2030), 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) [2023-11-21 22:20:31,641 INFO L175 Difference]: Start difference. First operand has 223 places, 224 transitions, 516 flow. Second operand 6 states and 1495 transitions. [2023-11-21 22:20:31,641 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 227 places, 239 transitions, 606 flow [2023-11-21 22:20:31,644 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 225 places, 239 transitions, 598 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 22:20:31,648 INFO L231 Difference]: Finished difference. Result has 225 places, 223 transitions, 514 flow [2023-11-21 22:20:31,649 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=290, PETRI_DIFFERENCE_MINUEND_FLOW=506, PETRI_DIFFERENCE_MINUEND_PLACES=220, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=223, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=219, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=514, PETRI_PLACES=225, PETRI_TRANSITIONS=223} [2023-11-21 22:20:31,651 INFO L281 CegarLoopForPetriNet]: 248 programPoint places, -23 predicate places. [2023-11-21 22:20:31,651 INFO L495 AbstractCegarLoop]: Abstraction has has 225 places, 223 transitions, 514 flow [2023-11-21 22:20:31,654 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 245.5) internal successors, (1473), 6 states have internal predecessors, (1473), 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) [2023-11-21 22:20:31,654 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:20:31,654 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:20:31,654 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-21 22:20:31,654 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting counter_threadErr3ASSERT_VIOLATIONDATA_RACE === [monitor_threadErr0ASSERT_VIOLATIONDATA_RACE, monitor_threadErr1ASSERT_VIOLATIONDATA_RACE, monitor_threadErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2023-11-21 22:20:31,655 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:20:31,656 INFO L85 PathProgramCache]: Analyzing trace with hash 337761272, now seen corresponding path program 1 times [2023-11-21 22:20:31,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:20:31,656 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [425227753] [2023-11-21 22:20:31,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:20:31,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:20:31,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:20:31,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:20:31,753 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:20:31,753 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [425227753] [2023-11-21 22:20:31,753 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [425227753] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:20:31,753 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:20:31,753 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:20:31,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [196620211] [2023-11-21 22:20:31,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:20:31,754 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:20:31,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:20:31,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:20:31,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:20:31,770 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 248 out of 290 [2023-11-21 22:20:31,771 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 225 places, 223 transitions, 514 flow. Second operand has 3 states, 3 states have (on average 250.0) internal successors, (750), 3 states have internal predecessors, (750), 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) [2023-11-21 22:20:31,771 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:20:31,771 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 248 of 290 [2023-11-21 22:20:31,771 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:20:32,063 INFO L124 PetriNetUnfolderBase]: 165/1678 cut-off events. [2023-11-21 22:20:32,064 INFO L125 PetriNetUnfolderBase]: For 49/53 co-relation queries the response was YES. [2023-11-21 22:20:32,077 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2169 conditions, 1678 events. 165/1678 cut-off events. For 49/53 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 12712 event pairs, 37 based on Foata normal form. 1/1556 useless extension candidates. Maximal degree in co-relation 1967. Up to 159 conditions per place. [2023-11-21 22:20:32,084 INFO L140 encePairwiseOnDemand]: 285/290 looper letters, 18 selfloop transitions, 5 changer transitions 0/230 dead transitions. [2023-11-21 22:20:32,085 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 227 places, 230 transitions, 579 flow [2023-11-21 22:20:32,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:20:32,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:20:32,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 765 transitions. [2023-11-21 22:20:32,088 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8793103448275862 [2023-11-21 22:20:32,088 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 765 transitions. [2023-11-21 22:20:32,088 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 765 transitions. [2023-11-21 22:20:32,089 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:20:32,089 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 765 transitions. [2023-11-21 22:20:32,091 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 255.0) internal successors, (765), 3 states have internal predecessors, (765), 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) [2023-11-21 22:20:32,093 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 290.0) internal successors, (1160), 4 states have internal predecessors, (1160), 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) [2023-11-21 22:20:32,094 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 290.0) internal successors, (1160), 4 states have internal predecessors, (1160), 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) [2023-11-21 22:20:32,094 INFO L175 Difference]: Start difference. First operand has 225 places, 223 transitions, 514 flow. Second operand 3 states and 765 transitions. [2023-11-21 22:20:32,094 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 227 places, 230 transitions, 579 flow [2023-11-21 22:20:32,097 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 223 places, 230 transitions, 572 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-21 22:20:32,101 INFO L231 Difference]: Finished difference. Result has 225 places, 227 transitions, 549 flow [2023-11-21 22:20:32,102 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=290, PETRI_DIFFERENCE_MINUEND_FLOW=507, PETRI_DIFFERENCE_MINUEND_PLACES=221, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=223, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=218, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=549, PETRI_PLACES=225, PETRI_TRANSITIONS=227} [2023-11-21 22:20:32,102 INFO L281 CegarLoopForPetriNet]: 248 programPoint places, -23 predicate places. [2023-11-21 22:20:32,103 INFO L495 AbstractCegarLoop]: Abstraction has has 225 places, 227 transitions, 549 flow [2023-11-21 22:20:32,103 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 250.0) internal successors, (750), 3 states have internal predecessors, (750), 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) [2023-11-21 22:20:32,104 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:20:32,104 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:20:32,104 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-21 22:20:32,104 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [monitor_threadErr0ASSERT_VIOLATIONDATA_RACE, monitor_threadErr1ASSERT_VIOLATIONDATA_RACE, monitor_threadErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2023-11-21 22:20:32,105 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:20:32,105 INFO L85 PathProgramCache]: Analyzing trace with hash -580461684, now seen corresponding path program 1 times [2023-11-21 22:20:32,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:20:32,105 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [756775821] [2023-11-21 22:20:32,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:20:32,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:20:32,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:20:32,784 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:20:32,785 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:20:32,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [756775821] [2023-11-21 22:20:32,785 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [756775821] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:20:32,785 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:20:32,785 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-21 22:20:32,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1830880930] [2023-11-21 22:20:32,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:20:32,786 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-21 22:20:32,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:20:32,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-21 22:20:32,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-21 22:20:32,929 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 244 out of 290 [2023-11-21 22:20:32,932 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 225 places, 227 transitions, 549 flow. Second operand has 6 states, 6 states have (on average 245.66666666666666) internal successors, (1474), 6 states have internal predecessors, (1474), 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) [2023-11-21 22:20:32,932 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:20:32,932 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 244 of 290 [2023-11-21 22:20:32,932 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:20:33,225 INFO L124 PetriNetUnfolderBase]: 152/1486 cut-off events. [2023-11-21 22:20:33,226 INFO L125 PetriNetUnfolderBase]: For 59/70 co-relation queries the response was YES. [2023-11-21 22:20:33,238 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1942 conditions, 1486 events. 152/1486 cut-off events. For 59/70 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 10896 event pairs, 22 based on Foata normal form. 2/1386 useless extension candidates. Maximal degree in co-relation 1737. Up to 147 conditions per place. [2023-11-21 22:20:33,245 INFO L140 encePairwiseOnDemand]: 285/290 looper letters, 18 selfloop transitions, 4 changer transitions 0/234 dead transitions. [2023-11-21 22:20:33,245 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 229 places, 234 transitions, 607 flow [2023-11-21 22:20:33,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-21 22:20:33,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-21 22:20:33,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1487 transitions. [2023-11-21 22:20:33,250 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8545977011494252 [2023-11-21 22:20:33,250 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1487 transitions. [2023-11-21 22:20:33,251 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1487 transitions. [2023-11-21 22:20:33,252 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:20:33,252 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1487 transitions. [2023-11-21 22:20:33,256 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 247.83333333333334) internal successors, (1487), 6 states have internal predecessors, (1487), 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) [2023-11-21 22:20:33,261 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 290.0) internal successors, (2030), 7 states have internal predecessors, (2030), 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) [2023-11-21 22:20:33,262 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 290.0) internal successors, (2030), 7 states have internal predecessors, (2030), 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) [2023-11-21 22:20:33,262 INFO L175 Difference]: Start difference. First operand has 225 places, 227 transitions, 549 flow. Second operand 6 states and 1487 transitions. [2023-11-21 22:20:33,263 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 229 places, 234 transitions, 607 flow [2023-11-21 22:20:33,266 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 227 places, 234 transitions, 597 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 22:20:33,270 INFO L231 Difference]: Finished difference. Result has 227 places, 226 transitions, 545 flow [2023-11-21 22:20:33,271 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=290, PETRI_DIFFERENCE_MINUEND_FLOW=537, PETRI_DIFFERENCE_MINUEND_PLACES=222, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=226, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=222, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=545, PETRI_PLACES=227, PETRI_TRANSITIONS=226} [2023-11-21 22:20:33,272 INFO L281 CegarLoopForPetriNet]: 248 programPoint places, -21 predicate places. [2023-11-21 22:20:33,272 INFO L495 AbstractCegarLoop]: Abstraction has has 227 places, 226 transitions, 545 flow [2023-11-21 22:20:33,273 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 245.66666666666666) internal successors, (1474), 6 states have internal predecessors, (1474), 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) [2023-11-21 22:20:33,273 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:20:33,273 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:20:33,274 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-21 22:20:33,274 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting counter_threadErr3ASSERT_VIOLATIONDATA_RACE === [monitor_threadErr0ASSERT_VIOLATIONDATA_RACE, monitor_threadErr1ASSERT_VIOLATIONDATA_RACE, monitor_threadErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2023-11-21 22:20:33,274 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:20:33,274 INFO L85 PathProgramCache]: Analyzing trace with hash 1667538688, now seen corresponding path program 1 times [2023-11-21 22:20:33,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:20:33,275 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1632765262] [2023-11-21 22:20:33,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:20:33,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:20:33,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:20:33,641 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:20:33,642 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:20:33,642 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1632765262] [2023-11-21 22:20:33,642 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1632765262] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:20:33,642 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:20:33,642 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-21 22:20:33,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1637416341] [2023-11-21 22:20:33,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:20:33,643 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-21 22:20:33,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:20:33,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-21 22:20:33,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-21 22:20:33,688 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 245 out of 290 [2023-11-21 22:20:33,690 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 227 places, 226 transitions, 545 flow. Second operand has 5 states, 5 states have (on average 246.8) internal successors, (1234), 5 states have internal predecessors, (1234), 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) [2023-11-21 22:20:33,690 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:20:33,690 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 245 of 290 [2023-11-21 22:20:33,690 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:20:34,349 INFO L124 PetriNetUnfolderBase]: 316/2933 cut-off events. [2023-11-21 22:20:34,349 INFO L125 PetriNetUnfolderBase]: For 74/82 co-relation queries the response was YES. [2023-11-21 22:20:34,374 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3936 conditions, 2933 events. 316/2933 cut-off events. For 74/82 co-relation queries the response was YES. Maximal size of possible extension queue 90. Compared 26995 event pairs, 43 based on Foata normal form. 2/2754 useless extension candidates. Maximal degree in co-relation 3830. Up to 259 conditions per place. [2023-11-21 22:20:34,387 INFO L140 encePairwiseOnDemand]: 280/290 looper letters, 28 selfloop transitions, 23 changer transitions 3/263 dead transitions. [2023-11-21 22:20:34,387 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 235 places, 263 transitions, 731 flow [2023-11-21 22:20:34,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-21 22:20:34,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-11-21 22:20:34,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2261 transitions. [2023-11-21 22:20:34,395 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8662835249042146 [2023-11-21 22:20:34,395 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 2261 transitions. [2023-11-21 22:20:34,399 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 2261 transitions. [2023-11-21 22:20:34,401 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:20:34,401 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 2261 transitions. [2023-11-21 22:20:34,408 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 251.22222222222223) internal successors, (2261), 9 states have internal predecessors, (2261), 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) [2023-11-21 22:20:34,415 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 290.0) internal successors, (2900), 10 states have internal predecessors, (2900), 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) [2023-11-21 22:20:34,417 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 290.0) internal successors, (2900), 10 states have internal predecessors, (2900), 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) [2023-11-21 22:20:34,417 INFO L175 Difference]: Start difference. First operand has 227 places, 226 transitions, 545 flow. Second operand 9 states and 2261 transitions. [2023-11-21 22:20:34,417 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 235 places, 263 transitions, 731 flow [2023-11-21 22:20:34,421 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 231 places, 263 transitions, 724 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-21 22:20:34,426 INFO L231 Difference]: Finished difference. Result has 239 places, 248 transitions, 708 flow [2023-11-21 22:20:34,427 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=290, PETRI_DIFFERENCE_MINUEND_FLOW=538, PETRI_DIFFERENCE_MINUEND_PLACES=223, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=226, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=217, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=708, PETRI_PLACES=239, PETRI_TRANSITIONS=248} [2023-11-21 22:20:34,430 INFO L281 CegarLoopForPetriNet]: 248 programPoint places, -9 predicate places. [2023-11-21 22:20:34,430 INFO L495 AbstractCegarLoop]: Abstraction has has 239 places, 248 transitions, 708 flow [2023-11-21 22:20:34,432 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 246.8) internal successors, (1234), 5 states have internal predecessors, (1234), 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) [2023-11-21 22:20:34,432 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:20:34,432 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:20:34,433 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-21 22:20:34,433 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting monitor_threadErr2ASSERT_VIOLATIONDATA_RACE === [monitor_threadErr0ASSERT_VIOLATIONDATA_RACE, monitor_threadErr1ASSERT_VIOLATIONDATA_RACE, monitor_threadErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2023-11-21 22:20:34,433 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:20:34,434 INFO L85 PathProgramCache]: Analyzing trace with hash 626487480, now seen corresponding path program 1 times [2023-11-21 22:20:34,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:20:34,434 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1148122512] [2023-11-21 22:20:34,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:20:34,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:20:34,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:20:34,745 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:20:34,746 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:20:34,746 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1148122512] [2023-11-21 22:20:34,746 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1148122512] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:20:34,746 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:20:34,747 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-21 22:20:34,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1679787051] [2023-11-21 22:20:34,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:20:34,747 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-21 22:20:34,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:20:34,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-21 22:20:34,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-21 22:20:34,793 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 245 out of 290 [2023-11-21 22:20:34,795 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 239 places, 248 transitions, 708 flow. Second operand has 5 states, 5 states have (on average 246.8) internal successors, (1234), 5 states have internal predecessors, (1234), 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) [2023-11-21 22:20:34,795 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:20:34,795 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 245 of 290 [2023-11-21 22:20:34,795 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:20:35,642 INFO L124 PetriNetUnfolderBase]: 377/3704 cut-off events. [2023-11-21 22:20:35,643 INFO L125 PetriNetUnfolderBase]: For 967/1059 co-relation queries the response was YES. [2023-11-21 22:20:35,673 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5618 conditions, 3704 events. 377/3704 cut-off events. For 967/1059 co-relation queries the response was YES. Maximal size of possible extension queue 108. Compared 36782 event pairs, 37 based on Foata normal form. 26/3528 useless extension candidates. Maximal degree in co-relation 5319. Up to 329 conditions per place. [2023-11-21 22:20:35,687 INFO L140 encePairwiseOnDemand]: 280/290 looper letters, 36 selfloop transitions, 33 changer transitions 3/281 dead transitions. [2023-11-21 22:20:35,687 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 244 places, 281 transitions, 1019 flow [2023-11-21 22:20:35,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-21 22:20:35,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-21 22:20:35,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1518 transitions. [2023-11-21 22:20:35,693 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8724137931034482 [2023-11-21 22:20:35,693 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1518 transitions. [2023-11-21 22:20:35,693 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1518 transitions. [2023-11-21 22:20:35,694 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:20:35,695 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1518 transitions. [2023-11-21 22:20:35,699 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 253.0) internal successors, (1518), 6 states have internal predecessors, (1518), 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) [2023-11-21 22:20:35,704 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 290.0) internal successors, (2030), 7 states have internal predecessors, (2030), 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) [2023-11-21 22:20:35,705 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 290.0) internal successors, (2030), 7 states have internal predecessors, (2030), 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) [2023-11-21 22:20:35,705 INFO L175 Difference]: Start difference. First operand has 239 places, 248 transitions, 708 flow. Second operand 6 states and 1518 transitions. [2023-11-21 22:20:35,706 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 244 places, 281 transitions, 1019 flow [2023-11-21 22:20:35,712 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 244 places, 281 transitions, 1019 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-21 22:20:35,717 INFO L231 Difference]: Finished difference. Result has 249 places, 269 transitions, 978 flow [2023-11-21 22:20:35,718 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=290, PETRI_DIFFERENCE_MINUEND_FLOW=708, PETRI_DIFFERENCE_MINUEND_PLACES=239, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=248, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=226, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=978, PETRI_PLACES=249, PETRI_TRANSITIONS=269} [2023-11-21 22:20:35,719 INFO L281 CegarLoopForPetriNet]: 248 programPoint places, 1 predicate places. [2023-11-21 22:20:35,719 INFO L495 AbstractCegarLoop]: Abstraction has has 249 places, 269 transitions, 978 flow [2023-11-21 22:20:35,720 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 246.8) internal successors, (1234), 5 states have internal predecessors, (1234), 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) [2023-11-21 22:20:35,720 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:20:35,720 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:20:35,720 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-21 22:20:35,721 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting monitor_threadErr2ASSERT_VIOLATIONDATA_RACE === [monitor_threadErr0ASSERT_VIOLATIONDATA_RACE, monitor_threadErr1ASSERT_VIOLATIONDATA_RACE, monitor_threadErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2023-11-21 22:20:35,721 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:20:35,721 INFO L85 PathProgramCache]: Analyzing trace with hash -2004556896, now seen corresponding path program 2 times [2023-11-21 22:20:35,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:20:35,722 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1795858476] [2023-11-21 22:20:35,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:20:35,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:20:35,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:20:36,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:20:36,090 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:20:36,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1795858476] [2023-11-21 22:20:36,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1795858476] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:20:36,094 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:20:36,094 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-21 22:20:36,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1927352165] [2023-11-21 22:20:36,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:20:36,096 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-21 22:20:36,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:20:36,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-21 22:20:36,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-21 22:20:36,138 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 245 out of 290 [2023-11-21 22:20:36,140 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 249 places, 269 transitions, 978 flow. Second operand has 5 states, 5 states have (on average 246.8) internal successors, (1234), 5 states have internal predecessors, (1234), 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) [2023-11-21 22:20:36,141 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:20:36,141 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 245 of 290 [2023-11-21 22:20:36,141 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:20:37,285 INFO L124 PetriNetUnfolderBase]: 448/4216 cut-off events. [2023-11-21 22:20:37,285 INFO L125 PetriNetUnfolderBase]: For 3036/3200 co-relation queries the response was YES. [2023-11-21 22:20:37,326 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7117 conditions, 4216 events. 448/4216 cut-off events. For 3036/3200 co-relation queries the response was YES. Maximal size of possible extension queue 120. Compared 43031 event pairs, 41 based on Foata normal form. 60/4037 useless extension candidates. Maximal degree in co-relation 6783. Up to 374 conditions per place. [2023-11-21 22:20:37,346 INFO L140 encePairwiseOnDemand]: 277/290 looper letters, 37 selfloop transitions, 68 changer transitions 3/317 dead transitions. [2023-11-21 22:20:37,346 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 255 places, 317 transitions, 1546 flow [2023-11-21 22:20:37,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-21 22:20:37,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-21 22:20:37,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1778 transitions. [2023-11-21 22:20:37,354 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8758620689655172 [2023-11-21 22:20:37,354 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1778 transitions. [2023-11-21 22:20:37,354 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1778 transitions. [2023-11-21 22:20:37,356 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:20:37,356 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1778 transitions. [2023-11-21 22:20:37,363 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 254.0) internal successors, (1778), 7 states have internal predecessors, (1778), 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) [2023-11-21 22:20:37,369 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 290.0) internal successors, (2320), 8 states have internal predecessors, (2320), 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) [2023-11-21 22:20:37,372 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 290.0) internal successors, (2320), 8 states have internal predecessors, (2320), 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) [2023-11-21 22:20:37,372 INFO L175 Difference]: Start difference. First operand has 249 places, 269 transitions, 978 flow. Second operand 7 states and 1778 transitions. [2023-11-21 22:20:37,372 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 255 places, 317 transitions, 1546 flow [2023-11-21 22:20:37,399 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 255 places, 317 transitions, 1530 flow, removed 8 selfloop flow, removed 0 redundant places. [2023-11-21 22:20:37,406 INFO L231 Difference]: Finished difference. Result has 261 places, 304 transitions, 1565 flow [2023-11-21 22:20:37,408 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=290, PETRI_DIFFERENCE_MINUEND_FLOW=962, PETRI_DIFFERENCE_MINUEND_PLACES=249, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=269, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=36, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=220, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1565, PETRI_PLACES=261, PETRI_TRANSITIONS=304} [2023-11-21 22:20:37,409 INFO L281 CegarLoopForPetriNet]: 248 programPoint places, 13 predicate places. [2023-11-21 22:20:37,409 INFO L495 AbstractCegarLoop]: Abstraction has has 261 places, 304 transitions, 1565 flow [2023-11-21 22:20:37,418 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 246.8) internal successors, (1234), 5 states have internal predecessors, (1234), 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) [2023-11-21 22:20:37,418 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:20:37,419 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:20:37,419 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-21 22:20:37,419 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting monitor_threadErr2ASSERT_VIOLATIONDATA_RACE === [monitor_threadErr0ASSERT_VIOLATIONDATA_RACE, monitor_threadErr1ASSERT_VIOLATIONDATA_RACE, monitor_threadErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2023-11-21 22:20:37,420 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:20:37,420 INFO L85 PathProgramCache]: Analyzing trace with hash -978810040, now seen corresponding path program 3 times [2023-11-21 22:20:37,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:20:37,422 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [17939560] [2023-11-21 22:20:37,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:20:37,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:20:37,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:20:37,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:20:37,755 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:20:37,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [17939560] [2023-11-21 22:20:37,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [17939560] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:20:37,756 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:20:37,756 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-21 22:20:37,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1566106952] [2023-11-21 22:20:37,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:20:37,757 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-21 22:20:37,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:20:37,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-21 22:20:37,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-21 22:20:37,799 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 245 out of 290 [2023-11-21 22:20:37,802 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 261 places, 304 transitions, 1565 flow. Second operand has 5 states, 5 states have (on average 246.8) internal successors, (1234), 5 states have internal predecessors, (1234), 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) [2023-11-21 22:20:37,802 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:20:37,802 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 245 of 290 [2023-11-21 22:20:37,802 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:20:38,611 INFO L124 PetriNetUnfolderBase]: 327/3318 cut-off events. [2023-11-21 22:20:38,612 INFO L125 PetriNetUnfolderBase]: For 4475/4702 co-relation queries the response was YES. [2023-11-21 22:20:38,651 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5917 conditions, 3318 events. 327/3318 cut-off events. For 4475/4702 co-relation queries the response was YES. Maximal size of possible extension queue 88. Compared 31752 event pairs, 33 based on Foata normal form. 75/3210 useless extension candidates. Maximal degree in co-relation 5556. Up to 298 conditions per place. [2023-11-21 22:20:38,660 INFO L140 encePairwiseOnDemand]: 280/290 looper letters, 0 selfloop transitions, 0 changer transitions 305/305 dead transitions. [2023-11-21 22:20:38,660 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 265 places, 305 transitions, 1808 flow [2023-11-21 22:20:38,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-21 22:20:38,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-21 22:20:38,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1771 transitions. [2023-11-21 22:20:38,666 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8724137931034482 [2023-11-21 22:20:38,667 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1771 transitions. [2023-11-21 22:20:38,667 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1771 transitions. [2023-11-21 22:20:38,668 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:20:38,668 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1771 transitions. [2023-11-21 22:20:38,673 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 253.0) internal successors, (1771), 7 states have internal predecessors, (1771), 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) [2023-11-21 22:20:38,678 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 290.0) internal successors, (2320), 8 states have internal predecessors, (2320), 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) [2023-11-21 22:20:38,679 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 290.0) internal successors, (2320), 8 states have internal predecessors, (2320), 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) [2023-11-21 22:20:38,679 INFO L175 Difference]: Start difference. First operand has 261 places, 304 transitions, 1565 flow. Second operand 7 states and 1771 transitions. [2023-11-21 22:20:38,679 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 265 places, 305 transitions, 1808 flow [2023-11-21 22:20:38,703 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 260 places, 305 transitions, 1664 flow, removed 25 selfloop flow, removed 5 redundant places. [2023-11-21 22:20:38,706 INFO L231 Difference]: Finished difference. Result has 260 places, 0 transitions, 0 flow [2023-11-21 22:20:38,707 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=290, PETRI_DIFFERENCE_MINUEND_FLOW=1289, PETRI_DIFFERENCE_MINUEND_PLACES=254, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=286, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=286, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=0, PETRI_PLACES=260, PETRI_TRANSITIONS=0} [2023-11-21 22:20:38,707 INFO L281 CegarLoopForPetriNet]: 248 programPoint places, 12 predicate places. [2023-11-21 22:20:38,707 INFO L495 AbstractCegarLoop]: Abstraction has has 260 places, 0 transitions, 0 flow [2023-11-21 22:20:38,708 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 246.8) internal successors, (1234), 5 states have internal predecessors, (1234), 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) [2023-11-21 22:20:38,710 INFO L805 garLoopResultBuilder]: Registering result SAFE for location monitor_threadErr0ASSERT_VIOLATIONDATA_RACE (26 of 27 remaining) [2023-11-21 22:20:38,711 INFO L805 garLoopResultBuilder]: Registering result SAFE for location monitor_threadErr1ASSERT_VIOLATIONDATA_RACE (25 of 27 remaining) [2023-11-21 22:20:38,711 INFO L805 garLoopResultBuilder]: Registering result SAFE for location monitor_threadErr2ASSERT_VIOLATIONDATA_RACE (24 of 27 remaining) [2023-11-21 22:20:38,711 INFO L805 garLoopResultBuilder]: Registering result SAFE for location monitor_threadErr3ASSERT_VIOLATIONDATA_RACE (23 of 27 remaining) [2023-11-21 22:20:38,712 INFO L805 garLoopResultBuilder]: Registering result SAFE for location counter_threadErr0ASSERT_VIOLATIONDATA_RACE (22 of 27 remaining) [2023-11-21 22:20:38,712 INFO L805 garLoopResultBuilder]: Registering result SAFE for location counter_threadErr1ASSERT_VIOLATIONDATA_RACE (21 of 27 remaining) [2023-11-21 22:20:38,712 INFO L805 garLoopResultBuilder]: Registering result SAFE for location counter_threadErr2ASSERT_VIOLATIONDATA_RACE (20 of 27 remaining) [2023-11-21 22:20:38,712 INFO L805 garLoopResultBuilder]: Registering result SAFE for location counter_threadErr4ASSERT_VIOLATIONDATA_RACE (19 of 27 remaining) [2023-11-21 22:20:38,712 INFO L805 garLoopResultBuilder]: Registering result SAFE for location counter_threadErr3ASSERT_VIOLATIONDATA_RACE (18 of 27 remaining) [2023-11-21 22:20:38,713 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (17 of 27 remaining) [2023-11-21 22:20:38,713 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (16 of 27 remaining) [2023-11-21 22:20:38,713 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (15 of 27 remaining) [2023-11-21 22:20:38,713 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (14 of 27 remaining) [2023-11-21 22:20:38,714 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (13 of 27 remaining) [2023-11-21 22:20:38,714 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (12 of 27 remaining) [2023-11-21 22:20:38,715 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (11 of 27 remaining) [2023-11-21 22:20:38,720 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 27 remaining) [2023-11-21 22:20:38,720 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 27 remaining) [2023-11-21 22:20:38,721 INFO L805 garLoopResultBuilder]: Registering result SAFE for location monitor_threadErr0ASSERT_VIOLATIONDATA_RACE (8 of 27 remaining) [2023-11-21 22:20:38,721 INFO L805 garLoopResultBuilder]: Registering result SAFE for location monitor_threadErr1ASSERT_VIOLATIONDATA_RACE (7 of 27 remaining) [2023-11-21 22:20:38,721 INFO L805 garLoopResultBuilder]: Registering result SAFE for location monitor_threadErr2ASSERT_VIOLATIONDATA_RACE (6 of 27 remaining) [2023-11-21 22:20:38,721 INFO L805 garLoopResultBuilder]: Registering result SAFE for location monitor_threadErr3ASSERT_VIOLATIONDATA_RACE (5 of 27 remaining) [2023-11-21 22:20:38,721 INFO L805 garLoopResultBuilder]: Registering result SAFE for location counter_threadErr0ASSERT_VIOLATIONDATA_RACE (4 of 27 remaining) [2023-11-21 22:20:38,722 INFO L805 garLoopResultBuilder]: Registering result SAFE for location counter_threadErr1ASSERT_VIOLATIONDATA_RACE (3 of 27 remaining) [2023-11-21 22:20:38,722 INFO L805 garLoopResultBuilder]: Registering result SAFE for location counter_threadErr2ASSERT_VIOLATIONDATA_RACE (2 of 27 remaining) [2023-11-21 22:20:38,722 INFO L805 garLoopResultBuilder]: Registering result SAFE for location counter_threadErr4ASSERT_VIOLATIONDATA_RACE (1 of 27 remaining) [2023-11-21 22:20:38,722 INFO L805 garLoopResultBuilder]: Registering result SAFE for location counter_threadErr3ASSERT_VIOLATIONDATA_RACE (0 of 27 remaining) [2023-11-21 22:20:38,722 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-21 22:20:38,723 INFO L445 BasicCegarLoop]: Path program histogram: [3, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:20:38,729 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-21 22:20:38,729 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-21 22:20:38,738 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 10:20:38 BasicIcfg [2023-11-21 22:20:38,738 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-21 22:20:38,738 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-21 22:20:38,739 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-21 22:20:38,739 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-21 22:20:38,739 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:20:27" (3/4) ... [2023-11-21 22:20:38,741 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-21 22:20:38,744 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure monitor_thread [2023-11-21 22:20:38,745 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure counter_thread [2023-11-21 22:20:38,752 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 28 nodes and edges [2023-11-21 22:20:38,752 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2023-11-21 22:20:38,752 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2023-11-21 22:20:38,753 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-11-21 22:20:38,753 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-21 22:20:38,863 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f074874-9a1f-4dd9-b3c5-bc286262779d/bin/uautomizer-verify-bycVGegfSx/witness.graphml [2023-11-21 22:20:38,863 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f074874-9a1f-4dd9-b3c5-bc286262779d/bin/uautomizer-verify-bycVGegfSx/witness.yml [2023-11-21 22:20:38,864 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-21 22:20:38,864 INFO L158 Benchmark]: Toolchain (without parser) took 14140.21ms. Allocated memory was 172.0MB in the beginning and 505.4MB in the end (delta: 333.4MB). Free memory was 126.6MB in the beginning and 230.2MB in the end (delta: -103.5MB). Peak memory consumption was 231.0MB. Max. memory is 16.1GB. [2023-11-21 22:20:38,865 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 172.0MB. Free memory was 138.0MB in the beginning and 138.0MB in the end (delta: 19.1kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 22:20:38,865 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1449.92ms. Allocated memory was 172.0MB in the beginning and 209.7MB in the end (delta: 37.7MB). Free memory was 126.6MB in the beginning and 159.6MB in the end (delta: -32.9MB). Peak memory consumption was 67.8MB. Max. memory is 16.1GB. [2023-11-21 22:20:38,865 INFO L158 Benchmark]: Boogie Procedure Inliner took 80.27ms. Allocated memory is still 209.7MB. Free memory was 159.6MB in the beginning and 155.4MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-21 22:20:38,866 INFO L158 Benchmark]: Boogie Preprocessor took 58.75ms. Allocated memory is still 209.7MB. Free memory was 155.4MB in the beginning and 152.2MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 22:20:38,866 INFO L158 Benchmark]: RCFGBuilder took 940.14ms. Allocated memory is still 209.7MB. Free memory was 152.2MB in the beginning and 121.8MB in the end (delta: 30.4MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2023-11-21 22:20:38,867 INFO L158 Benchmark]: TraceAbstraction took 11478.72ms. Allocated memory was 209.7MB in the beginning and 505.4MB in the end (delta: 295.7MB). Free memory was 120.8MB in the beginning and 235.4MB in the end (delta: -114.7MB). Peak memory consumption was 190.5MB. Max. memory is 16.1GB. [2023-11-21 22:20:38,867 INFO L158 Benchmark]: Witness Printer took 125.24ms. Allocated memory is still 505.4MB. Free memory was 235.4MB in the beginning and 230.2MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-21 22:20:38,870 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 172.0MB. Free memory was 138.0MB in the beginning and 138.0MB in the end (delta: 19.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1449.92ms. Allocated memory was 172.0MB in the beginning and 209.7MB in the end (delta: 37.7MB). Free memory was 126.6MB in the beginning and 159.6MB in the end (delta: -32.9MB). Peak memory consumption was 67.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 80.27ms. Allocated memory is still 209.7MB. Free memory was 159.6MB in the beginning and 155.4MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 58.75ms. Allocated memory is still 209.7MB. Free memory was 155.4MB in the beginning and 152.2MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 940.14ms. Allocated memory is still 209.7MB. Free memory was 152.2MB in the beginning and 121.8MB in the end (delta: 30.4MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. * TraceAbstraction took 11478.72ms. Allocated memory was 209.7MB in the beginning and 505.4MB in the end (delta: 295.7MB). Free memory was 120.8MB in the beginning and 235.4MB in the end (delta: -114.7MB). Peak memory consumption was 190.5MB. Max. memory is 16.1GB. * Witness Printer took 125.24ms. Allocated memory is still 505.4MB. Free memory was 235.4MB in the beginning and 230.2MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 1819]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1824]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1825]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1828]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1803]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1806]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1808]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1811]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1808]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1843]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1846]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1849]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1850]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1852]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1853]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1855]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 374 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: 11.3s, OverallIterations: 11, TraceHistogramMax: 1, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 6.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 474 SdHoareTripleChecker+Valid, 1.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 295 mSDsluCounter, 189 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 86 mSDsCounter, 118 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 872 IncrementalHoareTripleChecker+Invalid, 990 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 118 mSolverCounterUnsat, 103 mSDtfsCounter, 872 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 51 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1565occurred in iteration=10, InterpolantAutomatonStates: 56, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 3.3s InterpolantComputationTime, 912 NumberOfCodeBlocks, 912 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 901 ConstructedInterpolants, 0 QuantifiedInterpolants, 1479 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 16 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-21 22:20:38,924 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f074874-9a1f-4dd9-b3c5-bc286262779d/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE