./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_01-simple_racing.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eca8f08b-4357-43ad-bf56-8342676ffee7/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eca8f08b-4357-43ad-bf56-8342676ffee7/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eca8f08b-4357-43ad-bf56-8342676ffee7/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eca8f08b-4357-43ad-bf56-8342676ffee7/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_01-simple_racing.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eca8f08b-4357-43ad-bf56-8342676ffee7/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eca8f08b-4357-43ad-bf56-8342676ffee7/bin/uautomizer-verify-aQ6SnzHsRB --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 eddb66a74cd149f880832378d52d5c02c94fd6efcf2d83aeade11bcdaaabe426 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 04:12:26,847 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 04:12:26,963 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eca8f08b-4357-43ad-bf56-8342676ffee7/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-28 04:12:26,968 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 04:12:26,969 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 04:12:27,004 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 04:12:27,005 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 04:12:27,006 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 04:12:27,006 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 04:12:27,007 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 04:12:27,007 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 04:12:27,007 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 04:12:27,008 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 04:12:27,008 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 04:12:27,008 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 04:12:27,008 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 04:12:27,010 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 04:12:27,010 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 04:12:27,010 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 04:12:27,010 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 04:12:27,011 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 04:12:27,011 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 04:12:27,011 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-28 04:12:27,011 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-28 04:12:27,011 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 04:12:27,011 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 04:12:27,011 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 04:12:27,011 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 04:12:27,012 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 04:12:27,012 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:12:27,012 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:12:27,012 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:12:27,012 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 04:12:27,012 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:12:27,012 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:12:27,012 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:12:27,012 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 04:12:27,012 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 04:12:27,012 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 04:12:27,013 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 04:12:27,013 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 04:12:27,013 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 04:12:27,013 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 04:12:27,013 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 04:12:27,013 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 04:12:27,013 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 04:12:27,013 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eca8f08b-4357-43ad-bf56-8342676ffee7/bin/uautomizer-verify-aQ6SnzHsRB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! 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 -> eddb66a74cd149f880832378d52d5c02c94fd6efcf2d83aeade11bcdaaabe426 [2024-11-28 04:12:27,335 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 04:12:27,350 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 04:12:27,353 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 04:12:27,354 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 04:12:27,355 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 04:12:27,356 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eca8f08b-4357-43ad-bf56-8342676ffee7/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/goblint-regression/28-race_reach_01-simple_racing.i [2024-11-28 04:12:30,624 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eca8f08b-4357-43ad-bf56-8342676ffee7/bin/uautomizer-verify-aQ6SnzHsRB/data/9a30ff99d/d929a5f1e70642c99817d24d2412e082/FLAGc705e59ae [2024-11-28 04:12:30,998 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 04:12:30,998 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eca8f08b-4357-43ad-bf56-8342676ffee7/sv-benchmarks/c/goblint-regression/28-race_reach_01-simple_racing.i [2024-11-28 04:12:31,013 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eca8f08b-4357-43ad-bf56-8342676ffee7/bin/uautomizer-verify-aQ6SnzHsRB/data/9a30ff99d/d929a5f1e70642c99817d24d2412e082/FLAGc705e59ae [2024-11-28 04:12:31,196 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eca8f08b-4357-43ad-bf56-8342676ffee7/bin/uautomizer-verify-aQ6SnzHsRB/data/9a30ff99d/d929a5f1e70642c99817d24d2412e082 [2024-11-28 04:12:31,199 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 04:12:31,201 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 04:12:31,202 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 04:12:31,203 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 04:12:31,207 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 04:12:31,208 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:12:31" (1/1) ... [2024-11-28 04:12:31,209 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51bee056 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:12:31, skipping insertion in model container [2024-11-28 04:12:31,209 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:12:31" (1/1) ... [2024-11-28 04:12:31,263 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 04:12:31,653 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:12:31,682 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 04:12:31,731 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:12:31,773 INFO L204 MainTranslator]: Completed translation [2024-11-28 04:12:31,773 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:12:31 WrapperNode [2024-11-28 04:12:31,774 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 04:12:31,775 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 04:12:31,775 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 04:12:31,775 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 04:12:31,783 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:12:31" (1/1) ... [2024-11-28 04:12:31,796 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:12:31" (1/1) ... [2024-11-28 04:12:31,824 INFO L138 Inliner]: procedures = 171, calls = 42, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 95 [2024-11-28 04:12:31,824 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 04:12:31,825 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 04:12:31,825 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 04:12:31,825 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 04:12:31,833 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:12:31" (1/1) ... [2024-11-28 04:12:31,834 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:12:31" (1/1) ... [2024-11-28 04:12:31,837 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:12:31" (1/1) ... [2024-11-28 04:12:31,838 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:12:31" (1/1) ... [2024-11-28 04:12:31,846 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:12:31" (1/1) ... [2024-11-28 04:12:31,847 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:12:31" (1/1) ... [2024-11-28 04:12:31,851 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:12:31" (1/1) ... [2024-11-28 04:12:31,857 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:12:31" (1/1) ... [2024-11-28 04:12:31,858 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:12:31" (1/1) ... [2024-11-28 04:12:31,860 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 04:12:31,865 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 04:12:31,865 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 04:12:31,866 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 04:12:31,867 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:12:31" (1/1) ... [2024-11-28 04:12:31,878 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:12:31,895 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eca8f08b-4357-43ad-bf56-8342676ffee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:12:31,914 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eca8f08b-4357-43ad-bf56-8342676ffee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 04:12:31,918 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eca8f08b-4357-43ad-bf56-8342676ffee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 04:12:31,955 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-28 04:12:31,956 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-28 04:12:31,956 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-28 04:12:31,956 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 04:12:31,956 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-28 04:12:31,956 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-28 04:12:31,956 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-28 04:12:31,956 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-28 04:12:31,957 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-28 04:12:31,957 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-28 04:12:31,957 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 04:12:31,957 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 04:12:31,959 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-28 04:12:32,131 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 04:12:32,133 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 04:12:32,601 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-28 04:12:32,606 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 04:12:32,659 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 04:12:32,659 INFO L312 CfgBuilder]: Removed 6 assume(true) statements. [2024-11-28 04:12:32,660 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:12:32 BoogieIcfgContainer [2024-11-28 04:12:32,660 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 04:12:32,662 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 04:12:32,663 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 04:12:32,669 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 04:12:32,669 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 04:12:31" (1/3) ... [2024-11-28 04:12:32,670 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cb2c927 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:12:32, skipping insertion in model container [2024-11-28 04:12:32,670 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:12:31" (2/3) ... [2024-11-28 04:12:32,670 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cb2c927 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:12:32, skipping insertion in model container [2024-11-28 04:12:32,670 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:12:32" (3/3) ... [2024-11-28 04:12:32,676 INFO L128 eAbstractionObserver]: Analyzing ICFG 28-race_reach_01-simple_racing.i [2024-11-28 04:12:32,695 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 04:12:32,696 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 28-race_reach_01-simple_racing.i that has 2 procedures, 134 locations, 1 initial locations, 6 loop locations, and 7 error locations. [2024-11-28 04:12:32,697 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-28 04:12:32,821 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-28 04:12:32,885 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 137 places, 147 transitions, 301 flow [2024-11-28 04:12:33,035 INFO L124 PetriNetUnfolderBase]: 19/206 cut-off events. [2024-11-28 04:12:33,037 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-28 04:12:33,047 INFO L83 FinitePrefix]: Finished finitePrefix Result has 211 conditions, 206 events. 19/206 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 630 event pairs, 0 based on Foata normal form. 0/174 useless extension candidates. Maximal degree in co-relation 109. Up to 4 conditions per place. [2024-11-28 04:12:33,047 INFO L82 GeneralOperation]: Start removeDead. Operand has 137 places, 147 transitions, 301 flow [2024-11-28 04:12:33,054 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 137 places, 147 transitions, 301 flow [2024-11-28 04:12:33,073 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 04:12:33,086 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=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;@740ac4aa, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 04:12:33,086 INFO L334 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2024-11-28 04:12:33,107 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-28 04:12:33,107 INFO L124 PetriNetUnfolderBase]: 2/52 cut-off events. [2024-11-28 04:12:33,107 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 04:12:33,108 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:12:33,109 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:12:33,109 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2024-11-28 04:12:33,115 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:12:33,116 INFO L85 PathProgramCache]: Analyzing trace with hash 349299387, now seen corresponding path program 1 times [2024-11-28 04:12:33,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:12:33,127 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [393673903] [2024-11-28 04:12:33,127 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:12:33,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:12:33,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:12:33,573 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:12:33,575 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:12:33,575 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [393673903] [2024-11-28 04:12:33,576 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [393673903] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:12:33,576 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:12:33,576 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:12:33,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1691194342] [2024-11-28 04:12:33,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:12:33,590 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:12:33,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:12:33,629 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:12:33,629 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:12:33,694 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 147 [2024-11-28 04:12:33,698 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 137 places, 147 transitions, 301 flow. Second operand has 3 states, 3 states have (on average 118.0) internal successors, (354), 3 states have internal predecessors, (354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:12:33,698 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:12:33,698 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 147 [2024-11-28 04:12:33,703 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:12:33,943 INFO L124 PetriNetUnfolderBase]: 48/563 cut-off events. [2024-11-28 04:12:33,944 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-28 04:12:33,948 INFO L83 FinitePrefix]: Finished finitePrefix Result has 684 conditions, 563 events. 48/563 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 2738 event pairs, 35 based on Foata normal form. 63/570 useless extension candidates. Maximal degree in co-relation 607. Up to 108 conditions per place. [2024-11-28 04:12:33,954 INFO L140 encePairwiseOnDemand]: 132/147 looper letters, 22 selfloop transitions, 2 changer transitions 0/139 dead transitions. [2024-11-28 04:12:33,954 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 139 transitions, 333 flow [2024-11-28 04:12:33,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:12:33,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 04:12:33,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 392 transitions. [2024-11-28 04:12:33,978 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8888888888888888 [2024-11-28 04:12:33,980 INFO L175 Difference]: Start difference. First operand has 137 places, 147 transitions, 301 flow. Second operand 3 states and 392 transitions. [2024-11-28 04:12:33,981 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 139 transitions, 333 flow [2024-11-28 04:12:33,989 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 137 places, 139 transitions, 333 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-28 04:12:33,996 INFO L231 Difference]: Finished difference. Result has 138 places, 133 transitions, 281 flow [2024-11-28 04:12:34,001 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=147, PETRI_DIFFERENCE_MINUEND_FLOW=273, PETRI_DIFFERENCE_MINUEND_PLACES=135, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=133, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=131, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=281, PETRI_PLACES=138, PETRI_TRANSITIONS=133} [2024-11-28 04:12:34,006 INFO L279 CegarLoopForPetriNet]: 137 programPoint places, 1 predicate places. [2024-11-28 04:12:34,006 INFO L471 AbstractCegarLoop]: Abstraction has has 138 places, 133 transitions, 281 flow [2024-11-28 04:12:34,009 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 118.0) internal successors, (354), 3 states have internal predecessors, (354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:12:34,009 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:12:34,009 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:12:34,009 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-28 04:12:34,010 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2024-11-28 04:12:34,010 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:12:34,010 INFO L85 PathProgramCache]: Analyzing trace with hash 1190642258, now seen corresponding path program 1 times [2024-11-28 04:12:34,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:12:34,011 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [860009639] [2024-11-28 04:12:34,011 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:12:34,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:12:34,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:12:34,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:12:34,953 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:12:34,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [860009639] [2024-11-28 04:12:34,954 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [860009639] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:12:34,954 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:12:34,954 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 04:12:34,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233871848] [2024-11-28 04:12:34,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:12:34,955 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:12:34,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:12:34,956 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:12:34,956 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:12:35,162 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 147 [2024-11-28 04:12:35,163 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 138 places, 133 transitions, 281 flow. Second operand has 6 states, 6 states have (on average 105.5) internal successors, (633), 6 states have internal predecessors, (633), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:12:35,163 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:12:35,163 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 147 [2024-11-28 04:12:35,163 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:12:35,432 INFO L124 PetriNetUnfolderBase]: 108/663 cut-off events. [2024-11-28 04:12:35,433 INFO L125 PetriNetUnfolderBase]: For 11/11 co-relation queries the response was YES. [2024-11-28 04:12:35,437 INFO L83 FinitePrefix]: Finished finitePrefix Result has 950 conditions, 663 events. 108/663 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 3799 event pairs, 7 based on Foata normal form. 0/611 useless extension candidates. Maximal degree in co-relation 859. Up to 181 conditions per place. [2024-11-28 04:12:35,441 INFO L140 encePairwiseOnDemand]: 141/147 looper letters, 48 selfloop transitions, 5 changer transitions 0/156 dead transitions. [2024-11-28 04:12:35,441 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 156 transitions, 433 flow [2024-11-28 04:12:35,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 04:12:35,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-28 04:12:35,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 678 transitions. [2024-11-28 04:12:35,452 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7687074829931972 [2024-11-28 04:12:35,452 INFO L175 Difference]: Start difference. First operand has 138 places, 133 transitions, 281 flow. Second operand 6 states and 678 transitions. [2024-11-28 04:12:35,452 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 142 places, 156 transitions, 433 flow [2024-11-28 04:12:35,454 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 140 places, 156 transitions, 429 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-28 04:12:35,459 INFO L231 Difference]: Finished difference. Result has 140 places, 132 transitions, 285 flow [2024-11-28 04:12:35,461 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=147, PETRI_DIFFERENCE_MINUEND_FLOW=275, PETRI_DIFFERENCE_MINUEND_PLACES=135, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=132, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=127, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=285, PETRI_PLACES=140, PETRI_TRANSITIONS=132} [2024-11-28 04:12:35,462 INFO L279 CegarLoopForPetriNet]: 137 programPoint places, 3 predicate places. [2024-11-28 04:12:35,462 INFO L471 AbstractCegarLoop]: Abstraction has has 140 places, 132 transitions, 285 flow [2024-11-28 04:12:35,463 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 105.5) internal successors, (633), 6 states have internal predecessors, (633), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:12:35,464 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:12:35,464 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:12:35,464 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 04:12:35,465 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2024-11-28 04:12:35,465 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:12:35,469 INFO L85 PathProgramCache]: Analyzing trace with hash -442917966, now seen corresponding path program 1 times [2024-11-28 04:12:35,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:12:35,469 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [21566651] [2024-11-28 04:12:35,469 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:12:35,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:12:35,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:12:35,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:12:35,562 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:12:35,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [21566651] [2024-11-28 04:12:35,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [21566651] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:12:35,563 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:12:35,563 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 04:12:35,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [513793097] [2024-11-28 04:12:35,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:12:35,564 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:12:35,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:12:35,565 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:12:35,566 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:12:35,602 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 147 [2024-11-28 04:12:35,603 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 132 transitions, 285 flow. Second operand has 3 states, 3 states have (on average 112.66666666666667) internal successors, (338), 3 states have internal predecessors, (338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:12:35,603 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:12:35,603 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 147 [2024-11-28 04:12:35,603 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:12:35,860 INFO L124 PetriNetUnfolderBase]: 91/795 cut-off events. [2024-11-28 04:12:35,861 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-11-28 04:12:35,863 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1031 conditions, 795 events. 91/795 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 4693 event pairs, 30 based on Foata normal form. 0/726 useless extension candidates. Maximal degree in co-relation 962. Up to 125 conditions per place. [2024-11-28 04:12:35,867 INFO L140 encePairwiseOnDemand]: 138/147 looper letters, 30 selfloop transitions, 6 changer transitions 0/145 dead transitions. [2024-11-28 04:12:35,868 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 140 places, 145 transitions, 386 flow [2024-11-28 04:12:35,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:12:35,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 04:12:35,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 372 transitions. [2024-11-28 04:12:35,870 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8435374149659864 [2024-11-28 04:12:35,870 INFO L175 Difference]: Start difference. First operand has 140 places, 132 transitions, 285 flow. Second operand 3 states and 372 transitions. [2024-11-28 04:12:35,870 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 140 places, 145 transitions, 386 flow [2024-11-28 04:12:35,874 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 135 places, 145 transitions, 376 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-28 04:12:35,877 INFO L231 Difference]: Finished difference. Result has 137 places, 134 transitions, 313 flow [2024-11-28 04:12:35,878 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=147, PETRI_DIFFERENCE_MINUEND_FLOW=271, PETRI_DIFFERENCE_MINUEND_PLACES=133, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=130, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=124, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=313, PETRI_PLACES=137, PETRI_TRANSITIONS=134} [2024-11-28 04:12:35,879 INFO L279 CegarLoopForPetriNet]: 137 programPoint places, 0 predicate places. [2024-11-28 04:12:35,881 INFO L471 AbstractCegarLoop]: Abstraction has has 137 places, 134 transitions, 313 flow [2024-11-28 04:12:35,882 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 112.66666666666667) internal successors, (338), 3 states have internal predecessors, (338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:12:35,882 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:12:35,882 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:12:35,882 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 04:12:35,882 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2024-11-28 04:12:35,883 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:12:35,883 INFO L85 PathProgramCache]: Analyzing trace with hash 2053795283, now seen corresponding path program 1 times [2024-11-28 04:12:35,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:12:35,883 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1867860294] [2024-11-28 04:12:35,883 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:12:35,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:12:35,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:12:35,983 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:12:35,984 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:12:35,985 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1867860294] [2024-11-28 04:12:35,985 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1867860294] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:12:35,985 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:12:35,985 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 04:12:35,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1641807774] [2024-11-28 04:12:35,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:12:35,985 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:12:35,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:12:35,986 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:12:35,986 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:12:36,023 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 147 [2024-11-28 04:12:36,024 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 137 places, 134 transitions, 313 flow. Second operand has 3 states, 3 states have (on average 115.33333333333333) internal successors, (346), 3 states have internal predecessors, (346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:12:36,025 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:12:36,025 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 147 [2024-11-28 04:12:36,025 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:12:36,245 INFO L124 PetriNetUnfolderBase]: 94/797 cut-off events. [2024-11-28 04:12:36,245 INFO L125 PetriNetUnfolderBase]: For 112/112 co-relation queries the response was YES. [2024-11-28 04:12:36,246 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1131 conditions, 797 events. 94/797 cut-off events. For 112/112 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 4761 event pairs, 60 based on Foata normal form. 0/729 useless extension candidates. Maximal degree in co-relation 1062. Up to 189 conditions per place. [2024-11-28 04:12:36,250 INFO L140 encePairwiseOnDemand]: 142/147 looper letters, 27 selfloop transitions, 4 changer transitions 0/141 dead transitions. [2024-11-28 04:12:36,251 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 141 transitions, 393 flow [2024-11-28 04:12:36,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:12:36,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 04:12:36,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 368 transitions. [2024-11-28 04:12:36,253 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8344671201814059 [2024-11-28 04:12:36,254 INFO L175 Difference]: Start difference. First operand has 137 places, 134 transitions, 313 flow. Second operand 3 states and 368 transitions. [2024-11-28 04:12:36,254 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 139 places, 141 transitions, 393 flow [2024-11-28 04:12:36,256 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 137 places, 141 transitions, 379 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-28 04:12:36,259 INFO L231 Difference]: Finished difference. Result has 139 places, 137 transitions, 333 flow [2024-11-28 04:12:36,260 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=147, PETRI_DIFFERENCE_MINUEND_FLOW=301, PETRI_DIFFERENCE_MINUEND_PLACES=135, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=134, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=130, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=333, PETRI_PLACES=139, PETRI_TRANSITIONS=137} [2024-11-28 04:12:36,260 INFO L279 CegarLoopForPetriNet]: 137 programPoint places, 2 predicate places. [2024-11-28 04:12:36,260 INFO L471 AbstractCegarLoop]: Abstraction has has 139 places, 137 transitions, 333 flow [2024-11-28 04:12:36,261 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 115.33333333333333) internal successors, (346), 3 states have internal predecessors, (346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:12:36,261 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:12:36,261 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:12:36,261 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 04:12:36,262 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2024-11-28 04:12:36,262 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:12:36,262 INFO L85 PathProgramCache]: Analyzing trace with hash 2101678183, now seen corresponding path program 1 times [2024-11-28 04:12:36,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:12:36,263 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [80649856] [2024-11-28 04:12:36,263 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:12:36,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:12:36,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:12:36,305 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 04:12:36,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:12:36,352 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-28 04:12:36,352 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-28 04:12:36,353 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 12 remaining) [2024-11-28 04:12:36,355 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (10 of 12 remaining) [2024-11-28 04:12:36,355 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (9 of 12 remaining) [2024-11-28 04:12:36,356 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (8 of 12 remaining) [2024-11-28 04:12:36,356 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (7 of 12 remaining) [2024-11-28 04:12:36,356 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (6 of 12 remaining) [2024-11-28 04:12:36,356 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (5 of 12 remaining) [2024-11-28 04:12:36,356 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (4 of 12 remaining) [2024-11-28 04:12:36,356 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 12 remaining) [2024-11-28 04:12:36,356 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (2 of 12 remaining) [2024-11-28 04:12:36,356 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (1 of 12 remaining) [2024-11-28 04:12:36,357 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (0 of 12 remaining) [2024-11-28 04:12:36,357 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 04:12:36,357 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2024-11-28 04:12:36,360 WARN L246 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-28 04:12:36,360 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-28 04:12:36,399 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-28 04:12:36,407 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 181 places, 196 transitions, 408 flow [2024-11-28 04:12:36,481 INFO L124 PetriNetUnfolderBase]: 34/342 cut-off events. [2024-11-28 04:12:36,481 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-28 04:12:36,483 INFO L83 FinitePrefix]: Finished finitePrefix Result has 354 conditions, 342 events. 34/342 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 1164 event pairs, 0 based on Foata normal form. 0/286 useless extension candidates. Maximal degree in co-relation 208. Up to 8 conditions per place. [2024-11-28 04:12:36,483 INFO L82 GeneralOperation]: Start removeDead. Operand has 181 places, 196 transitions, 408 flow [2024-11-28 04:12:36,490 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 181 places, 196 transitions, 408 flow [2024-11-28 04:12:36,491 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 04:12:36,491 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=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;@740ac4aa, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 04:12:36,493 INFO L334 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2024-11-28 04:12:36,501 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-28 04:12:36,501 INFO L124 PetriNetUnfolderBase]: 2/52 cut-off events. [2024-11-28 04:12:36,501 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 04:12:36,501 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:12:36,501 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:12:36,501 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2024-11-28 04:12:36,502 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:12:36,502 INFO L85 PathProgramCache]: Analyzing trace with hash -1130099525, now seen corresponding path program 1 times [2024-11-28 04:12:36,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:12:36,502 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [590072808] [2024-11-28 04:12:36,503 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:12:36,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:12:36,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:12:36,614 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:12:36,614 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:12:36,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [590072808] [2024-11-28 04:12:36,615 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [590072808] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:12:36,615 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:12:36,616 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:12:36,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799003819] [2024-11-28 04:12:36,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:12:36,617 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:12:36,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:12:36,617 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:12:36,618 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:12:36,658 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 196 [2024-11-28 04:12:36,659 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 181 places, 196 transitions, 408 flow. Second operand has 3 states, 3 states have (on average 153.0) internal successors, (459), 3 states have internal predecessors, (459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:12:36,659 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:12:36,659 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 196 [2024-11-28 04:12:36,659 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:12:37,688 INFO L124 PetriNetUnfolderBase]: 788/4305 cut-off events. [2024-11-28 04:12:37,688 INFO L125 PetriNetUnfolderBase]: For 77/77 co-relation queries the response was YES. [2024-11-28 04:12:37,700 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5658 conditions, 4305 events. 788/4305 cut-off events. For 77/77 co-relation queries the response was YES. Maximal size of possible extension queue 116. Compared 41171 event pairs, 348 based on Foata normal form. 749/4668 useless extension candidates. Maximal degree in co-relation 721. Up to 1303 conditions per place. [2024-11-28 04:12:37,720 INFO L140 encePairwiseOnDemand]: 175/196 looper letters, 31 selfloop transitions, 2 changer transitions 0/183 dead transitions. [2024-11-28 04:12:37,720 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 181 places, 183 transitions, 448 flow [2024-11-28 04:12:37,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:12:37,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 04:12:37,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 512 transitions. [2024-11-28 04:12:37,723 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8707482993197279 [2024-11-28 04:12:37,723 INFO L175 Difference]: Start difference. First operand has 181 places, 196 transitions, 408 flow. Second operand 3 states and 512 transitions. [2024-11-28 04:12:37,723 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 181 places, 183 transitions, 448 flow [2024-11-28 04:12:37,726 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 181 places, 183 transitions, 448 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-28 04:12:37,729 INFO L231 Difference]: Finished difference. Result has 182 places, 177 transitions, 380 flow [2024-11-28 04:12:37,729 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=196, PETRI_DIFFERENCE_MINUEND_FLOW=368, PETRI_DIFFERENCE_MINUEND_PLACES=179, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=176, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=174, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=380, PETRI_PLACES=182, PETRI_TRANSITIONS=177} [2024-11-28 04:12:37,731 INFO L279 CegarLoopForPetriNet]: 181 programPoint places, 1 predicate places. [2024-11-28 04:12:37,733 INFO L471 AbstractCegarLoop]: Abstraction has has 182 places, 177 transitions, 380 flow [2024-11-28 04:12:37,734 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 153.0) internal successors, (459), 3 states have internal predecessors, (459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:12:37,734 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:12:37,734 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:12:37,734 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-28 04:12:37,734 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2024-11-28 04:12:37,735 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:12:37,735 INFO L85 PathProgramCache]: Analyzing trace with hash 1122469074, now seen corresponding path program 1 times [2024-11-28 04:12:37,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:12:37,735 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [547200980] [2024-11-28 04:12:37,735 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:12:37,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:12:37,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:12:38,183 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:12:38,186 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:12:38,186 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [547200980] [2024-11-28 04:12:38,186 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [547200980] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:12:38,186 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:12:38,186 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 04:12:38,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1061973557] [2024-11-28 04:12:38,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:12:38,187 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:12:38,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:12:38,188 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:12:38,188 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:12:38,372 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 139 out of 196 [2024-11-28 04:12:38,373 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 182 places, 177 transitions, 380 flow. Second operand has 6 states, 6 states have (on average 140.5) internal successors, (843), 6 states have internal predecessors, (843), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:12:38,373 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:12:38,373 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 139 of 196 [2024-11-28 04:12:38,373 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:12:39,771 INFO L124 PetriNetUnfolderBase]: 1718/5680 cut-off events. [2024-11-28 04:12:39,772 INFO L125 PetriNetUnfolderBase]: For 119/119 co-relation queries the response was YES. [2024-11-28 04:12:39,792 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8692 conditions, 5680 events. 1718/5680 cut-off events. For 119/119 co-relation queries the response was YES. Maximal size of possible extension queue 188. Compared 53996 event pairs, 222 based on Foata normal form. 0/5288 useless extension candidates. Maximal degree in co-relation 1233. Up to 2015 conditions per place. [2024-11-28 04:12:39,827 INFO L140 encePairwiseOnDemand]: 190/196 looper letters, 80 selfloop transitions, 6 changer transitions 0/224 dead transitions. [2024-11-28 04:12:39,827 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 186 places, 224 transitions, 646 flow [2024-11-28 04:12:39,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 04:12:39,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-28 04:12:39,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 920 transitions. [2024-11-28 04:12:39,836 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.782312925170068 [2024-11-28 04:12:39,836 INFO L175 Difference]: Start difference. First operand has 182 places, 177 transitions, 380 flow. Second operand 6 states and 920 transitions. [2024-11-28 04:12:39,836 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 186 places, 224 transitions, 646 flow [2024-11-28 04:12:39,841 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 185 places, 224 transitions, 644 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-28 04:12:39,845 INFO L231 Difference]: Finished difference. Result has 185 places, 176 transitions, 388 flow [2024-11-28 04:12:39,846 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=196, PETRI_DIFFERENCE_MINUEND_FLOW=376, PETRI_DIFFERENCE_MINUEND_PLACES=180, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=176, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=170, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=388, PETRI_PLACES=185, PETRI_TRANSITIONS=176} [2024-11-28 04:12:39,847 INFO L279 CegarLoopForPetriNet]: 181 programPoint places, 4 predicate places. [2024-11-28 04:12:39,848 INFO L471 AbstractCegarLoop]: Abstraction has has 185 places, 176 transitions, 388 flow [2024-11-28 04:12:39,849 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 140.5) internal successors, (843), 6 states have internal predecessors, (843), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:12:39,849 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:12:39,849 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:12:39,850 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-28 04:12:39,851 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2024-11-28 04:12:39,852 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:12:39,852 INFO L85 PathProgramCache]: Analyzing trace with hash -767973083, now seen corresponding path program 1 times [2024-11-28 04:12:39,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:12:39,855 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1431818618] [2024-11-28 04:12:39,855 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:12:39,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:12:39,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:12:39,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:12:39,942 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:12:39,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1431818618] [2024-11-28 04:12:39,942 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1431818618] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:12:39,942 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:12:39,942 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 04:12:39,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775459864] [2024-11-28 04:12:39,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:12:39,943 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:12:39,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:12:39,944 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:12:39,944 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:12:40,006 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 138 out of 196 [2024-11-28 04:12:40,007 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 185 places, 176 transitions, 388 flow. Second operand has 3 states, 3 states have (on average 139.66666666666666) internal successors, (419), 3 states have internal predecessors, (419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:12:40,007 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:12:40,008 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 138 of 196 [2024-11-28 04:12:40,008 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:12:42,620 INFO L124 PetriNetUnfolderBase]: 3893/14603 cut-off events. [2024-11-28 04:12:42,620 INFO L125 PetriNetUnfolderBase]: For 238/238 co-relation queries the response was YES. [2024-11-28 04:12:42,671 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21154 conditions, 14603 events. 3893/14603 cut-off events. For 238/238 co-relation queries the response was YES. Maximal size of possible extension queue 385. Compared 164084 event pairs, 1530 based on Foata normal form. 0/13062 useless extension candidates. Maximal degree in co-relation 20044. Up to 3516 conditions per place. [2024-11-28 04:12:42,752 INFO L140 encePairwiseOnDemand]: 177/196 looper letters, 58 selfloop transitions, 14 changer transitions 0/209 dead transitions. [2024-11-28 04:12:42,753 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 187 places, 209 transitions, 609 flow [2024-11-28 04:12:42,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:12:42,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 04:12:42,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 491 transitions. [2024-11-28 04:12:42,756 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8350340136054422 [2024-11-28 04:12:42,756 INFO L175 Difference]: Start difference. First operand has 185 places, 176 transitions, 388 flow. Second operand 3 states and 491 transitions. [2024-11-28 04:12:42,756 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 187 places, 209 transitions, 609 flow [2024-11-28 04:12:42,760 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 182 places, 209 transitions, 597 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-28 04:12:42,765 INFO L231 Difference]: Finished difference. Result has 184 places, 190 transitions, 498 flow [2024-11-28 04:12:42,766 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=196, PETRI_DIFFERENCE_MINUEND_FLOW=376, PETRI_DIFFERENCE_MINUEND_PLACES=180, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=176, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=162, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=498, PETRI_PLACES=184, PETRI_TRANSITIONS=190} [2024-11-28 04:12:42,767 INFO L279 CegarLoopForPetriNet]: 181 programPoint places, 3 predicate places. [2024-11-28 04:12:42,768 INFO L471 AbstractCegarLoop]: Abstraction has has 184 places, 190 transitions, 498 flow [2024-11-28 04:12:42,769 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 139.66666666666666) internal successors, (419), 3 states have internal predecessors, (419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:12:42,769 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:12:42,773 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:12:42,773 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-28 04:12:42,773 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2024-11-28 04:12:42,774 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:12:42,774 INFO L85 PathProgramCache]: Analyzing trace with hash 1882054660, now seen corresponding path program 1 times [2024-11-28 04:12:42,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:12:42,774 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1874229386] [2024-11-28 04:12:42,774 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:12:42,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:12:42,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:12:42,852 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:12:42,853 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:12:42,853 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1874229386] [2024-11-28 04:12:42,853 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1874229386] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:12:42,853 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:12:42,853 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 04:12:42,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [34200813] [2024-11-28 04:12:42,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:12:42,855 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:12:42,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:12:42,856 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:12:42,858 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:12:42,949 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 144 out of 196 [2024-11-28 04:12:42,950 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 184 places, 190 transitions, 498 flow. Second operand has 3 states, 3 states have (on average 146.33333333333334) internal successors, (439), 3 states have internal predecessors, (439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:12:42,954 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:12:42,954 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 144 of 196 [2024-11-28 04:12:42,954 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:12:45,278 INFO L124 PetriNetUnfolderBase]: 4020/16456 cut-off events. [2024-11-28 04:12:45,279 INFO L125 PetriNetUnfolderBase]: For 4434/4609 co-relation queries the response was YES. [2024-11-28 04:12:45,327 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27144 conditions, 16456 events. 4020/16456 cut-off events. For 4434/4609 co-relation queries the response was YES. Maximal size of possible extension queue 424. Compared 194008 event pairs, 2411 based on Foata normal form. 46/14958 useless extension candidates. Maximal degree in co-relation 13739. Up to 5498 conditions per place. [2024-11-28 04:12:45,391 INFO L140 encePairwiseOnDemand]: 187/196 looper letters, 52 selfloop transitions, 14 changer transitions 0/214 dead transitions. [2024-11-28 04:12:45,391 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 186 places, 214 transitions, 716 flow [2024-11-28 04:12:45,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:12:45,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 04:12:45,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 485 transitions. [2024-11-28 04:12:45,394 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8248299319727891 [2024-11-28 04:12:45,394 INFO L175 Difference]: Start difference. First operand has 184 places, 190 transitions, 498 flow. Second operand 3 states and 485 transitions. [2024-11-28 04:12:45,394 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 186 places, 214 transitions, 716 flow [2024-11-28 04:12:45,407 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 184 places, 214 transitions, 678 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-28 04:12:45,411 INFO L231 Difference]: Finished difference. Result has 186 places, 202 transitions, 596 flow [2024-11-28 04:12:45,411 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=196, PETRI_DIFFERENCE_MINUEND_FLOW=470, PETRI_DIFFERENCE_MINUEND_PLACES=182, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=190, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=176, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=596, PETRI_PLACES=186, PETRI_TRANSITIONS=202} [2024-11-28 04:12:45,412 INFO L279 CegarLoopForPetriNet]: 181 programPoint places, 5 predicate places. [2024-11-28 04:12:45,412 INFO L471 AbstractCegarLoop]: Abstraction has has 186 places, 202 transitions, 596 flow [2024-11-28 04:12:45,412 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 146.33333333333334) internal successors, (439), 3 states have internal predecessors, (439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:12:45,413 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:12:45,413 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:12:45,413 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-28 04:12:45,413 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2024-11-28 04:12:45,413 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:12:45,414 INFO L85 PathProgramCache]: Analyzing trace with hash -1864083193, now seen corresponding path program 1 times [2024-11-28 04:12:45,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:12:45,414 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1343036155] [2024-11-28 04:12:45,414 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:12:45,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:12:45,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:12:45,557 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-28 04:12:45,557 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:12:45,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1343036155] [2024-11-28 04:12:45,557 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1343036155] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:12:45,557 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:12:45,557 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 04:12:45,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1755625220] [2024-11-28 04:12:45,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:12:45,558 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:12:45,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:12:45,558 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:12:45,558 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:12:45,619 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 149 out of 196 [2024-11-28 04:12:45,620 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 186 places, 202 transitions, 596 flow. Second operand has 5 states, 5 states have (on average 151.4) internal successors, (757), 5 states have internal predecessors, (757), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:12:45,621 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:12:45,621 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 149 of 196 [2024-11-28 04:12:45,621 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:12:48,400 INFO L124 PetriNetUnfolderBase]: 3063/17780 cut-off events. [2024-11-28 04:12:48,400 INFO L125 PetriNetUnfolderBase]: For 1413/1927 co-relation queries the response was YES. [2024-11-28 04:12:48,440 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25245 conditions, 17780 events. 3063/17780 cut-off events. For 1413/1927 co-relation queries the response was YES. Maximal size of possible extension queue 509. Compared 231782 event pairs, 741 based on Foata normal form. 16/15956 useless extension candidates. Maximal degree in co-relation 21477. Up to 3818 conditions per place. [2024-11-28 04:12:48,497 INFO L140 encePairwiseOnDemand]: 191/196 looper letters, 56 selfloop transitions, 5 changer transitions 0/234 dead transitions. [2024-11-28 04:12:48,498 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 191 places, 234 transitions, 782 flow [2024-11-28 04:12:48,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 04:12:48,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-28 04:12:48,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 956 transitions. [2024-11-28 04:12:48,501 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8129251700680272 [2024-11-28 04:12:48,501 INFO L175 Difference]: Start difference. First operand has 186 places, 202 transitions, 596 flow. Second operand 6 states and 956 transitions. [2024-11-28 04:12:48,502 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 191 places, 234 transitions, 782 flow [2024-11-28 04:12:48,512 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 189 places, 234 transitions, 754 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-28 04:12:48,516 INFO L231 Difference]: Finished difference. Result has 192 places, 204 transitions, 594 flow [2024-11-28 04:12:48,517 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=196, PETRI_DIFFERENCE_MINUEND_FLOW=568, PETRI_DIFFERENCE_MINUEND_PLACES=184, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=202, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=197, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=594, PETRI_PLACES=192, PETRI_TRANSITIONS=204} [2024-11-28 04:12:48,518 INFO L279 CegarLoopForPetriNet]: 181 programPoint places, 11 predicate places. [2024-11-28 04:12:48,518 INFO L471 AbstractCegarLoop]: Abstraction has has 192 places, 204 transitions, 594 flow [2024-11-28 04:12:48,519 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 151.4) internal successors, (757), 5 states have internal predecessors, (757), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:12:48,519 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:12:48,519 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:12:48,520 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-28 04:12:48,520 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2024-11-28 04:12:48,521 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:12:48,521 INFO L85 PathProgramCache]: Analyzing trace with hash -7759389, now seen corresponding path program 1 times [2024-11-28 04:12:48,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:12:48,521 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1951738597] [2024-11-28 04:12:48,521 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:12:48,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:12:48,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:12:48,589 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-28 04:12:48,589 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:12:48,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1951738597] [2024-11-28 04:12:48,589 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1951738597] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:12:48,589 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:12:48,590 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 04:12:48,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1107753172] [2024-11-28 04:12:48,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:12:48,590 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:12:48,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:12:48,591 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:12:48,591 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:12:48,652 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 144 out of 196 [2024-11-28 04:12:48,653 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 192 places, 204 transitions, 594 flow. Second operand has 3 states, 3 states have (on average 146.66666666666666) internal successors, (440), 3 states have internal predecessors, (440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:12:48,653 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:12:48,653 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 144 of 196 [2024-11-28 04:12:48,653 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:12:51,231 INFO L124 PetriNetUnfolderBase]: 4656/19920 cut-off events. [2024-11-28 04:12:51,231 INFO L125 PetriNetUnfolderBase]: For 5229/5431 co-relation queries the response was YES. [2024-11-28 04:12:51,287 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32445 conditions, 19920 events. 4656/19920 cut-off events. For 5229/5431 co-relation queries the response was YES. Maximal size of possible extension queue 563. Compared 247682 event pairs, 2716 based on Foata normal form. 35/17903 useless extension candidates. Maximal degree in co-relation 32254. Up to 6266 conditions per place. [2024-11-28 04:12:51,480 INFO L140 encePairwiseOnDemand]: 187/196 looper letters, 59 selfloop transitions, 17 changer transitions 0/228 dead transitions. [2024-11-28 04:12:51,480 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 194 places, 228 transitions, 829 flow [2024-11-28 04:12:51,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:12:51,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 04:12:51,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 484 transitions. [2024-11-28 04:12:51,482 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8231292517006803 [2024-11-28 04:12:51,482 INFO L175 Difference]: Start difference. First operand has 192 places, 204 transitions, 594 flow. Second operand 3 states and 484 transitions. [2024-11-28 04:12:51,482 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 194 places, 228 transitions, 829 flow [2024-11-28 04:12:51,486 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 192 places, 228 transitions, 823 flow, removed 1 selfloop flow, removed 2 redundant places. [2024-11-28 04:12:51,490 INFO L231 Difference]: Finished difference. Result has 194 places, 217 transitions, 742 flow [2024-11-28 04:12:51,490 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=196, PETRI_DIFFERENCE_MINUEND_FLOW=588, PETRI_DIFFERENCE_MINUEND_PLACES=190, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=204, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=187, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=742, PETRI_PLACES=194, PETRI_TRANSITIONS=217} [2024-11-28 04:12:51,491 INFO L279 CegarLoopForPetriNet]: 181 programPoint places, 13 predicate places. [2024-11-28 04:12:51,491 INFO L471 AbstractCegarLoop]: Abstraction has has 194 places, 217 transitions, 742 flow [2024-11-28 04:12:51,492 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 146.66666666666666) internal successors, (440), 3 states have internal predecessors, (440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:12:51,492 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:12:51,492 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:12:51,492 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-28 04:12:51,492 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2024-11-28 04:12:51,493 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:12:51,493 INFO L85 PathProgramCache]: Analyzing trace with hash -942762127, now seen corresponding path program 1 times [2024-11-28 04:12:51,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:12:51,493 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1757495703] [2024-11-28 04:12:51,493 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:12:51,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:12:51,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:12:51,575 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-28 04:12:51,576 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:12:51,576 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1757495703] [2024-11-28 04:12:51,576 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1757495703] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:12:51,576 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:12:51,576 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 04:12:51,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277074359] [2024-11-28 04:12:51,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:12:51,577 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:12:51,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:12:51,578 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:12:51,578 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:12:51,642 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 144 out of 196 [2024-11-28 04:12:51,643 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 194 places, 217 transitions, 742 flow. Second operand has 3 states, 3 states have (on average 147.66666666666666) internal successors, (443), 3 states have internal predecessors, (443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:12:51,644 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:12:51,644 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 144 of 196 [2024-11-28 04:12:51,644 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:12:54,655 INFO L124 PetriNetUnfolderBase]: 5232/22430 cut-off events. [2024-11-28 04:12:54,655 INFO L125 PetriNetUnfolderBase]: For 13174/13598 co-relation queries the response was YES. [2024-11-28 04:12:54,703 INFO L83 FinitePrefix]: Finished finitePrefix Result has 39638 conditions, 22430 events. 5232/22430 cut-off events. For 13174/13598 co-relation queries the response was YES. Maximal size of possible extension queue 620. Compared 284547 event pairs, 2910 based on Foata normal form. 60/20201 useless extension candidates. Maximal degree in co-relation 39426. Up to 7048 conditions per place. [2024-11-28 04:12:54,752 INFO L140 encePairwiseOnDemand]: 187/196 looper letters, 71 selfloop transitions, 17 changer transitions 0/242 dead transitions. [2024-11-28 04:12:54,752 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 196 places, 242 transitions, 1036 flow [2024-11-28 04:12:54,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:12:54,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 04:12:54,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 485 transitions. [2024-11-28 04:12:54,754 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8248299319727891 [2024-11-28 04:12:54,754 INFO L175 Difference]: Start difference. First operand has 194 places, 217 transitions, 742 flow. Second operand 3 states and 485 transitions. [2024-11-28 04:12:54,754 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 196 places, 242 transitions, 1036 flow [2024-11-28 04:12:54,775 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 194 places, 242 transitions, 996 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-28 04:12:54,777 INFO L231 Difference]: Finished difference. Result has 196 places, 230 transitions, 884 flow [2024-11-28 04:12:54,777 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=196, PETRI_DIFFERENCE_MINUEND_FLOW=708, PETRI_DIFFERENCE_MINUEND_PLACES=192, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=217, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=200, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=884, PETRI_PLACES=196, PETRI_TRANSITIONS=230} [2024-11-28 04:12:54,778 INFO L279 CegarLoopForPetriNet]: 181 programPoint places, 15 predicate places. [2024-11-28 04:12:54,778 INFO L471 AbstractCegarLoop]: Abstraction has has 196 places, 230 transitions, 884 flow [2024-11-28 04:12:54,778 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 147.66666666666666) internal successors, (443), 3 states have internal predecessors, (443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:12:54,778 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:12:54,778 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:12:54,778 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-28 04:12:54,779 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2024-11-28 04:12:54,779 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:12:54,779 INFO L85 PathProgramCache]: Analyzing trace with hash 1830983257, now seen corresponding path program 1 times [2024-11-28 04:12:54,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:12:54,780 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1155413776] [2024-11-28 04:12:54,780 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:12:54,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:12:54,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:12:54,817 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 04:12:54,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:12:54,848 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-28 04:12:54,848 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-28 04:12:54,849 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (15 of 16 remaining) [2024-11-28 04:12:54,849 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (14 of 16 remaining) [2024-11-28 04:12:54,849 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (13 of 16 remaining) [2024-11-28 04:12:54,849 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (12 of 16 remaining) [2024-11-28 04:12:54,849 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (11 of 16 remaining) [2024-11-28 04:12:54,850 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (10 of 16 remaining) [2024-11-28 04:12:54,850 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (9 of 16 remaining) [2024-11-28 04:12:54,850 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (8 of 16 remaining) [2024-11-28 04:12:54,850 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (7 of 16 remaining) [2024-11-28 04:12:54,850 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (6 of 16 remaining) [2024-11-28 04:12:54,851 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (5 of 16 remaining) [2024-11-28 04:12:54,851 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (4 of 16 remaining) [2024-11-28 04:12:54,851 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 16 remaining) [2024-11-28 04:12:54,851 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (2 of 16 remaining) [2024-11-28 04:12:54,851 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (1 of 16 remaining) [2024-11-28 04:12:54,851 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (0 of 16 remaining) [2024-11-28 04:12:54,852 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-28 04:12:54,852 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:12:54,853 WARN L246 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-28 04:12:54,853 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-11-28 04:12:54,901 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-11-28 04:12:54,905 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 225 places, 245 transitions, 517 flow [2024-11-28 04:12:54,978 INFO L124 PetriNetUnfolderBase]: 54/523 cut-off events. [2024-11-28 04:12:54,978 INFO L125 PetriNetUnfolderBase]: For 19/19 co-relation queries the response was YES. [2024-11-28 04:12:54,983 INFO L83 FinitePrefix]: Finished finitePrefix Result has 548 conditions, 523 events. 54/523 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 1975 event pairs, 1 based on Foata normal form. 0/437 useless extension candidates. Maximal degree in co-relation 350. Up to 16 conditions per place. [2024-11-28 04:12:54,983 INFO L82 GeneralOperation]: Start removeDead. Operand has 225 places, 245 transitions, 517 flow [2024-11-28 04:12:54,988 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 225 places, 245 transitions, 517 flow [2024-11-28 04:12:54,989 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 04:12:54,990 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=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;@740ac4aa, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 04:12:54,990 INFO L334 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2024-11-28 04:12:54,993 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-28 04:12:54,994 INFO L124 PetriNetUnfolderBase]: 2/52 cut-off events. [2024-11-28 04:12:54,994 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 04:12:54,994 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:12:54,994 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:12:54,994 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-28 04:12:54,995 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:12:54,995 INFO L85 PathProgramCache]: Analyzing trace with hash -1905606341, now seen corresponding path program 1 times [2024-11-28 04:12:54,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:12:54,995 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1601241424] [2024-11-28 04:12:54,995 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:12:54,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:12:55,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:12:55,036 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:12:55,036 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:12:55,037 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1601241424] [2024-11-28 04:12:55,037 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1601241424] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:12:55,037 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:12:55,037 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:12:55,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1386088363] [2024-11-28 04:12:55,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:12:55,037 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:12:55,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:12:55,038 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:12:55,038 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:12:55,070 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 186 out of 245 [2024-11-28 04:12:55,071 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 225 places, 245 transitions, 517 flow. Second operand has 3 states, 3 states have (on average 188.0) internal successors, (564), 3 states have internal predecessors, (564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:12:55,072 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:12:55,072 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 186 of 245 [2024-11-28 04:12:55,072 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:12:59,936 INFO L124 PetriNetUnfolderBase]: 8948/35254 cut-off events. [2024-11-28 04:12:59,936 INFO L125 PetriNetUnfolderBase]: For 952/952 co-relation queries the response was YES. [2024-11-28 04:13:00,032 INFO L83 FinitePrefix]: Finished finitePrefix Result has 48492 conditions, 35254 events. 8948/35254 cut-off events. For 952/952 co-relation queries the response was YES. Maximal size of possible extension queue 770. Compared 458724 event pairs, 5659 based on Foata normal form. 7668/39699 useless extension candidates. Maximal degree in co-relation 6249. Up to 12802 conditions per place. [2024-11-28 04:13:00,162 INFO L140 encePairwiseOnDemand]: 218/245 looper letters, 39 selfloop transitions, 2 changer transitions 0/226 dead transitions. [2024-11-28 04:13:00,162 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 225 places, 226 transitions, 561 flow [2024-11-28 04:13:00,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:13:00,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 04:13:00,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 631 transitions. [2024-11-28 04:13:00,165 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8585034013605443 [2024-11-28 04:13:00,165 INFO L175 Difference]: Start difference. First operand has 225 places, 245 transitions, 517 flow. Second operand 3 states and 631 transitions. [2024-11-28 04:13:00,165 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 225 places, 226 transitions, 561 flow [2024-11-28 04:13:00,169 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 225 places, 226 transitions, 561 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-28 04:13:00,173 INFO L231 Difference]: Finished difference. Result has 226 places, 220 transitions, 477 flow [2024-11-28 04:13:00,173 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=245, PETRI_DIFFERENCE_MINUEND_FLOW=465, PETRI_DIFFERENCE_MINUEND_PLACES=223, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=219, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=217, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=477, PETRI_PLACES=226, PETRI_TRANSITIONS=220} [2024-11-28 04:13:00,174 INFO L279 CegarLoopForPetriNet]: 225 programPoint places, 1 predicate places. [2024-11-28 04:13:00,174 INFO L471 AbstractCegarLoop]: Abstraction has has 226 places, 220 transitions, 477 flow [2024-11-28 04:13:00,175 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 188.0) internal successors, (564), 3 states have internal predecessors, (564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:13:00,175 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:13:00,175 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:13:00,175 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-28 04:13:00,175 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-28 04:13:00,176 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:13:00,176 INFO L85 PathProgramCache]: Analyzing trace with hash -1110231054, now seen corresponding path program 1 times [2024-11-28 04:13:00,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:13:00,176 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [69927608] [2024-11-28 04:13:00,177 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:13:00,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:13:00,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:13:00,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:13:00,644 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:13:00,644 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [69927608] [2024-11-28 04:13:00,644 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [69927608] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:13:00,644 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:13:00,644 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 04:13:00,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1601394458] [2024-11-28 04:13:00,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:13:00,644 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:13:00,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:13:00,645 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:13:00,645 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:13:00,793 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 174 out of 245 [2024-11-28 04:13:00,796 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 226 places, 220 transitions, 477 flow. Second operand has 6 states, 6 states have (on average 175.5) internal successors, (1053), 6 states have internal predecessors, (1053), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:13:00,796 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:13:00,796 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 174 of 245 [2024-11-28 04:13:00,797 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:13:07,707 INFO L124 PetriNetUnfolderBase]: 19555/51762 cut-off events. [2024-11-28 04:13:07,708 INFO L125 PetriNetUnfolderBase]: For 1427/1427 co-relation queries the response was YES. [2024-11-28 04:13:07,847 INFO L83 FinitePrefix]: Finished finitePrefix Result has 80922 conditions, 51762 events. 19555/51762 cut-off events. For 1427/1427 co-relation queries the response was YES. Maximal size of possible extension queue 1321. Compared 631876 event pairs, 2086 based on Foata normal form. 0/48276 useless extension candidates. Maximal degree in co-relation 57667. Up to 20048 conditions per place. [2024-11-28 04:13:08,036 INFO L140 encePairwiseOnDemand]: 239/245 looper letters, 112 selfloop transitions, 6 changer transitions 0/291 dead transitions. [2024-11-28 04:13:08,037 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 230 places, 291 transitions, 855 flow [2024-11-28 04:13:08,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 04:13:08,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-28 04:13:08,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1162 transitions. [2024-11-28 04:13:08,040 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7904761904761904 [2024-11-28 04:13:08,041 INFO L175 Difference]: Start difference. First operand has 226 places, 220 transitions, 477 flow. Second operand 6 states and 1162 transitions. [2024-11-28 04:13:08,041 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 230 places, 291 transitions, 855 flow [2024-11-28 04:13:08,044 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 229 places, 291 transitions, 853 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-28 04:13:08,047 INFO L231 Difference]: Finished difference. Result has 229 places, 219 transitions, 485 flow [2024-11-28 04:13:08,048 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=245, PETRI_DIFFERENCE_MINUEND_FLOW=473, PETRI_DIFFERENCE_MINUEND_PLACES=224, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=219, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=213, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=485, PETRI_PLACES=229, PETRI_TRANSITIONS=219} [2024-11-28 04:13:08,048 INFO L279 CegarLoopForPetriNet]: 225 programPoint places, 4 predicate places. [2024-11-28 04:13:08,049 INFO L471 AbstractCegarLoop]: Abstraction has has 229 places, 219 transitions, 485 flow [2024-11-28 04:13:08,049 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 175.5) internal successors, (1053), 6 states have internal predecessors, (1053), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:13:08,050 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:13:08,050 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:13:08,050 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-28 04:13:08,050 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-28 04:13:08,051 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:13:08,051 INFO L85 PathProgramCache]: Analyzing trace with hash 1658204329, now seen corresponding path program 1 times [2024-11-28 04:13:08,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:13:08,051 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [883598559] [2024-11-28 04:13:08,051 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:13:08,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:13:08,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:13:08,095 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:13:08,096 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:13:08,096 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [883598559] [2024-11-28 04:13:08,096 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [883598559] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:13:08,096 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:13:08,096 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 04:13:08,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [208149328] [2024-11-28 04:13:08,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:13:08,097 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:13:08,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:13:08,097 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:13:08,098 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:13:08,170 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 165 out of 245 [2024-11-28 04:13:08,171 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 229 places, 219 transitions, 485 flow. Second operand has 3 states, 3 states have (on average 166.66666666666666) internal successors, (500), 3 states have internal predecessors, (500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:13:08,171 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:13:08,172 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 165 of 245 [2024-11-28 04:13:08,172 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand